Energy efficiency news.
Rebate updates, policy changes, and technology developments — aggregated from 50+ sources, AI-enriched, and scored for relevance.
The new Mercedes GLA EV is bigger, smarter, and has a range of over 400 miles
Mercedes has redesigned its smallest SUV, the GLA, as an electric model with more space and a longer range. The 2028 GLA EV will arrive at US dealerships in the second half of 2027, alongside a hybrid version. It's built on the automaker's new compact-car platform, following the electric CLA and GLB. The new GLA is slightly larger than before, with about 2 extra inches of legroom in front, up to 1.5 inches more in back, and nearly an inch of added headroom thanks to a standard glass roof. Inside, a wide dashboard screen setup includes a driver display and two other screens, plus a voice assistant that can help find charging stations and check charging speeds along a route. Two versions are planned: a 268-horsepower model and a more powerful all-wheel-drive 349-horsepower model. Both use an 85 kWh battery pack, with an estimated range up to 408 miles under the European test standard. Because of fast-charging tech (800-volt architecture), the GLA can add up to 267 miles of range in as little as 10 minutes at a public fast charger, if you can find one rated up to 320 kW. Mercedes hasn't announced US pricing or final specs, but the company expects the GLA EV to start around $45,000, with a real-world range closer to 350 miles under US testing standards. If you're weighing a home EV charger purchase or an electricity plan built around EV charging, this gives a rough sense of the battery size and charging speed to expect from a compact Mercedes EV arriving in late 2027.
Waymo — New Testing, Uber Fallout, Fine Bonanza
This is a self-driving car story, not a home energy one, so there is little here that touches your own house directly. Waymo, the robotaxi company, is testing a new electric van model in Pittsburgh, and separate research from the Insurance Institute for Highway Safety found its cars were involved in 68% fewer police-reportable crashes per mile than human drivers in four cities where it operates. On the less flattering side, Waymo has racked up $9,325 in parking fines in Austin since launching there in 2024, apparently from its cars not always finding legal spots on their own. The bigger development is that Waymo and Uber are pulling apart in Austin and Atlanta, the two cities where their partnership grew the most. Waymo reportedly plans to launch its own service in those cities in January 2028, once it's allowed to, rather than keep routing rides through Uber's app. The breakup seems to stem from disagreements over vehicle cleaning, routing, financial terms, and how Waymo's cars handle bad weather. In one case, a group of Waymo vehicles blocked a cul-de-sac in Atlanta, a mix-up tied to Uber's fleet management rather than Waymo's driving software itself. None of this affects home energy upgrades or rebates, but if robotaxis expand into more cities, it could change transportation options where you live down the road.
Fired Tesla Robotaxi Supervisor Files Suit In Houston
This isn't an energy-efficiency story, but here's what happened for anyone tracking Tesla news. A former Tesla employee who supervised safety operators for the company's robotaxi service in Houston has sued in federal court, claiming he was fired after complaining he was overseeing 38 people when company policy caps that at 15. Javier Medrano says his job included reviewing driving footage, riding along in vehicles, and handling safety incidents around the clock, and that the workload left him exhausted. He claims he answered a call about a crash while asleep and gave confused guidance, an incident he says led to a driver being stranded at a scene for an hour. He says he raised alarms repeatedly before being let go and is now seeking his job back plus damages. The suit adds to broader questions about Tesla's robotaxi rollout, which has faced a federal safety probe over self-driving software failures at traffic signals and reports of higher crash rates than competitor Waymo. None of this changes anything about home energy programs, rebates, or upgrades. It's simply a labor and safety dispute tied to Tesla's driverless car service, relevant only if you're following that company's robotaxi expansion for other reasons.
FCC bans foreign-produced solar inverters, grid lockout begins today
The Federal Communications Commission has banned new sales of solar and battery inverters made outside the United States, effective immediately. An inverter is the equipment that converts power from solar panels or batteries into electricity your home or the grid can use. Any inverter without an existing FCC ID now cannot legally be turned on or connected to the grid. There's no grace period, so this affects new solar and storage projects nationwide right away. The reasoning is about cybersecurity, not physical tampering. A federal review earlier this year found no hidden malicious hardware in Chinese-made inverters, but the White House decided the real risk is that these devices connect wirelessly, which could let a foreign adversary push a software update that shuts off solar systems remotely. Since domestic manufacturers supply only a small share of the U.S. inverter market, this creates an immediate shortage. Large solar and storage projects already built may sit idle without a certified inverter to connect them, and switching to a different inverter model can also trigger lengthy re-approval delays with utilities. For a homeowner, this news mainly affects the broader supply chain rather than a system already installed on your roof, since the ban targets new equipment sales and connections going forward. If you're planning a solar or battery installation, it's worth asking your installer whether the inverter they plan to use is domestically made or already has FCC approval, since availability and pricing for imported models may shift as manufacturers adjust.
Vermont’s largest energy source is now a virtual power plant
In Vermont, utility Green Mountain Power now runs the state's largest power resource, and it isn't a traditional power plant. It's a "virtual power plant" (VPP), a network of home batteries, large-scale storage, EV chargers, and other resources that the utility can draw on together during times of high demand. During a July heat wave, GMP pulled 90 megawatts from this network, roughly equal to taking 50,000 homes off the grid at peak. Utilities normally have to buy extra power at high prices during heat waves, so avoiding that purchase saved an estimated $6 million for all GMP customers, not just those with batteries. Last year the VPP saved $11 million. More than 5,000 GMP customers have over 10,000 batteries enrolled, making up 53 of the network's 110 megawatts of total capacity. GMP was the first utility in the country to offer a state-approved battery lease: customers can lease two Tesla Powerwalls for $55 a month, or pay $5,500 upfront for a 10-year lease. In exchange, GMP can tap some of that stored power during peak hours, while the homeowner still keeps backup power during outages. There's also a "bring your own device" option that gives an upfront incentive to customers who buy their own compatible battery. The payoff extends beyond individual bills. GMP says the growing battery network has already let it permanently retire peaker plants, small power plants that run only during demand spikes and tend to be costly and carbon-heavy, in Vergennes and Rutland, with more retirements planned as the battery network expands. This program is specific to Vermont, so homeowners elsewhere should check what their own utility or state offers.
Subscription HVAC Gains Traction as Contractors Seek Recurring Revenue
A new option is showing up for homeowners who need a furnace or air conditioner: paying for heating and cooling like a subscription instead of buying the equipment outright. Instead of a big upfront purchase, you'd pay a set monthly fee that bundles the equipment, annual maintenance, covered repairs, and often full replacement if the system fails during the contract. Most programs run 10 to 12 years, require no money down, and cover parts and labor if something breaks. The company that installs the system keeps ownership of it and stays responsible for its upkeep, so if a part starts failing, they're the ones catching it during a routine visit rather than you facing a surprise repair bill. Companies offering these plans, including Service Experts and others working with lenders like Finturf, say interest is growing, especially among homeowners burned before by a system whose warranty was voided because maintenance lapsed, or who paid $10,000 to $20,000 for equipment only to face a major repair a few years later. Roughly 1 in 5 homeowners choose the subscription when it's offered alongside cash purchase and traditional financing, according to Finturf's numbers. Approval typically depends on credit, with most programs looking for a score around 640 or higher. This kind of plan is still uncommon in the U.S. and isn't replacing normal financing or cash purchases — it's another option contractors may bring up when quoting a new system. At the end of the term, homeowners can typically keep the equipment, buy it outright, or roll into a new agreement with newer equipment.
Community solar can bridge California’s energy affordability gap
California lawmakers are considering a bill, AB 1813, that would let more residents sign up for community solar — small, local solar and storage projects that anyone can subscribe to without putting panels on their own roof. This matters especially for renters and homeowners whose roofs are not suited for solar. Right now, most Californians who want cleaner, cheaper power have to rely on Community Choice Aggregation (CCA) programs, where a city or county buys greener electricity on residents' behalf. But only 25 CCAs exist, covering about a third of the state's electricity customers, mostly near the coast, leaving roughly two-thirds of Californians without access. Under a community solar and storage program, residents anywhere in the state could subscribe to a nearby project and get a credit on their utility bill — no roof, no equipment, and no long-term contract required. Subscribers save an average of $200 a year, with bigger savings for low-income households, and more than half of new local solar projects would have to serve low-income customers. The bill also aims to cut costs for everyone, subscribers or not, by building solar and storage on the local distribution grid instead of requiring expensive upgrades to long-distance transmission lines. One study cited in support of the bill estimates this approach could save Californians $6.5 billion overall and avoid $2 billion in grid upgrade costs. The bill has passed a state Senate committee and awaits a full Senate floor vote, after which Governor Gavin Newsom would need to sign it. If you live in California, this is worth watching if a CCA isn't currently available where you live.
ERV Wall Timer Control for Ultimate Air ER80M
A homeowner posted a question on a building science forum asking about a wall timer control for an Ultimate Air ER80M, a type of energy recovery ventilator (ERV). An ERV brings fresh air into a house while recovering heat or coolness from the air being exhausted, and a wall timer lets you turn the unit on or off, or run it for a set period. Ultimate Air, the company that made this ERV, is no longer in business, which means the original replacement parts and controls are hard to find. The poster specifically wanted to know where to find a new timer that uses the same CAT5-style plug the original used, or whether a compatible wall switch could be installed in its place if a direct replacement isn't available. At the time of posting, no answers had been given yet. If you have an older ERV or similar ventilation system from a manufacturer that has since closed, this is a reminder that control parts can become hard to source over time. It may be worth checking whether your system's manufacturer is still active and whether replacement controls or compatible third-party parts exist, especially if you're relying on a wall timer to manage when the unit runs. For now, this particular question remains open, with no confirmed solution yet posted for finding or retrofitting a timer for this model.
Who Needs Natural Gas Power Plants When Grid Solutions, VPPs, And DERs Are Here?
New gas power plants are barely getting built, partly because of a long backlog for the turbines they need. Meanwhile, batteries, wind, and solar keep expanding, along with new ways of tying home and business energy systems into the grid. A New York battery startup called Viridi is working with a federal energy lab in Tennessee to test software that coordinates many small batteries at once, a setup known as distributed energy resources, or DERs. Early results are promising, though full analysis will take months. Viridi is also installing its battery systems at 100 commercial sites for an energy-management company called Budderfly. On the demand side, General Motors is installing a new power-control system at a Michigan factory that is meant to cut energy waste and improve grid reliability in the surrounding area, though this particular upgrade is at a factory, not a home upgrade you can access directly. The most homeowner-relevant piece involves electric vehicles. In Massachusetts, utilities Eversource and National Grid are teaming up with EnergyHub, Sunrun, and Mobility House to expand a vehicle-to-grid, or V2G, program. Owners of V2G-capable EVs can enroll through an existing system called ConnectedSolutions, letting their car's battery help balance the grid, often in exchange for a financial incentive. This program is specific to Massachusetts for now, so if you drive an EV, it is worth checking whether your own state offers something similar, since these grid-balancing programs vary widely by location.
Forget what you read on Facebook: 94% of EV drivers won’t go back to gas
A new industry survey of electric vehicle owners finds that 94% say they would not go back to a gas car. The research comes from CDK, a company that works with auto dealerships, and is based on responses from current EV drivers about their satisfaction and daily experience with the vehicles. This is one of several similar findings. An earlier study from earlier this year put the number at 96%, and EV sales recently hit their best month since federal tax credits for electric vehicles ended. Together, these point to owners sticking with electric vehicles once they switch, even as some manufacturers pull back on EV models and public debate about EVs remains mixed. For a homeowner thinking about buying an EV or adding a home charger, none of this changes program deadlines or rebate amounts on its own. But it is a data point worth knowing if you are weighing whether an EV fits your household: the people who already own one are, by large majorities in these surveys, satisfied enough to stay electric. If you are separately considering solar panels or a home charging setup, those remain separate decisions with their own costs, incentives, and installer quotes to compare, regardless of what this survey shows about owner satisfaction.
The Modular Housing Conundrum: Why Innovation Hasn’t Solved the Housing Crisis
Modular, factory-built homes have long been pitched as a fix for the housing shortage, thanks to their speed, cost savings, and more consistent build quality compared to site-built construction. But despite those advantages, modular building still makes up only a small slice of new housing, and the reasons why are more tangled than a single fix. Part of the problem may be regulatory. Unlike most manufactured homes, which follow a single national HUD building code, modular homes must meet local building codes that vary place to place. Some in the industry argue that shifting toward performance-based codes, which judge a building by how well it performs rather than by a fixed checklist of construction methods, could make it easier for modular projects to scale up. But that is only part of the picture. Modular builders also face challenges around factory economics, marketing, and staying financially solvent, meaning code reform alone likely will not solve the bigger supply problem. Local government resistance plays a role too. Industry voices point to NIMBYism, meaning opposition from residents and officials to new housing being built nearby, as a persistent barrier that shows up not just at town council meetings but throughout the permitting and approval process. None of this changes anything for homeowners today, but it helps explain why factory-built homes have not become the faster, cheaper option many expected, and why the housing shortage remains a hard problem to solve.
Behind the New York data center pause is legislation that could impact existing facilities
New York Gov. Kathy Hochul has paused new state environmental permits for large data centers (those using 50 megawatts or more of electricity) for up to a year, giving officials time to study the effects of these facilities on energy demand, water use, air quality and noise. The pause, signed July 14, is separate from a broader bill the state legislature passed in June, which Hochul has not yet signed. That unsigned bill goes further and could eventually touch existing data centers, not just new ones. It would require data centers using at least 5 megawatts to get a third of their electricity from renewable sources by 2030, with the share rising in later years, and to meet energy-efficiency targets still to be set. It would also require large new facilities, and existing ones adding significant load, to fund a "host-community benefits" program covering things like residential energy upgrades, local infrastructure and measures to offset water and wastewater impacts. For most homeowners, this is background news about how New York plans to manage the huge growth in electricity demand from data centers, which has jumped sharply in recent years. It does not create any new homeowner rebate or program yet. But if the unsigned bill eventually becomes law, the community benefits fund it describes could mean local energy-upgrade money tied to data center growth in some New York communities. Homeowners elsewhere aren't affected, though the outcome may signal how other states could approach similar data center growth in the future.
Affordable Homes, Cooling Centers, and a Faster Grid? Yes, Please
A federal program called Innovation Incubator (IN2), run with the Department of Energy's National Laboratory of the Rockies, is funding four organizations to test new energy and housing technologies in real communities. On May 28, 2026, the program awarded a total of $750,000 to Habitat for Humanity of Greater Los Angeles, National Grid, WinnCompanies, and Tucson Electric Power, each pairing with lab experts for six-month pilot projects. In Los Angeles, Habitat LA will use AI planning tools and a mobile robotic microfactory to build affordable homes faster, aiming to help wildfire survivors rebuild after the Palisades and Eaton fires destroyed more than 13,000 homes. National Grid, which serves over 20 million customers in Massachusetts and New York, will test automated tools to connect new customers to the power grid without expensive upgrades, which could help hold down costs for existing customers too. WinnCompanies will install networked building controls in four multifamily buildings in the Northeast, aiming to cut energy use by 15% to 30% for residents, including seniors and military families, during high-demand winter periods. Tucson Electric Power will build a microgrid-powered cooling center in Pima County, Arizona, that can keep running during a blackout, addressing a rise in heat deaths. None of this is a program homeowners can sign up for directly. It is early-stage testing meant to prove out these technologies before wider rollout, but the results could eventually shape rebuilding costs, grid connection fees, and heating and cooling programs in these regions.
After solar panels fall while unloading, Washington man seeks damages from Canadian Solar
A Washington man is suing Canadian Solar after 24 solar panels, weighing roughly a ton, allegedly fell on him while he was unloading them at a hops farm in Yakima Valley in August 2023. Patrick Gibbons, along with his wife and his business, had purchased 155 Canadian Solar panels through a distributor to deliver and install at Puterbaugh Farms, which was building solar canopies over its crops. The panels had been shipped stacked vertically on pallets, and Gibbons claims Canadian Solar's own instructions called for a special "unpacking rack" to safely handle panels packed this way, but the company never provided one or warned him not to proceed without it. After removing seven panels without trouble, he says he heard a cracking sound and the remaining 24 panels, an estimated 1,900 pounds, fell on him. Gibbons suffered serious injuries, including internal bleeding, a fractured pelvis and bladder damage, spent five days in intensive care, and needed surgery to install bone screws and a steel plate. His legal team hired a pallet and crate expert who concluded the wood and nails used in the shipping pallets were substandard, making the packaging unstable. Gibbons is seeking a jury trial and damages for medical costs, lost income, pain and emotional distress. This case does not involve a home rooftop system, but it is a reminder that large solar installations, including panels used on farms or other properties, involve genuine weight and handling hazards during delivery and setup, not just during ongoing operation.
7 Things to Know About Data-Driven Commercial Refrigeration Management
This one is mostly relevant to grocery stores and other businesses with large commercial refrigeration systems, not typical homes. It covers how those operators are managing walk-in coolers and refrigerated display cases using continuous data monitoring rather than periodic checks. The gist: instead of technicians checking for refrigerant leaks every few months with handheld devices, more facilities now use sensor networks that watch pressure, temperature, and system behavior around the clock. This lets problems get caught early — one case study found leaks detected up to two months sooner than with standard quarterly checks. The result is fewer emergency repair calls, lower energy waste, and less refrigerant lost to leaks, which also helps with regulations around refrigerant tracking and emissions reporting. For a homeowner, the direct takeaway is limited, since this is about supermarket-scale refrigeration systems, not household refrigerators or air conditioners. But the broader trend — using continuous data instead of occasional inspections to catch problems before they become expensive breakdowns — is the same logic increasingly built into smart thermostats, heat pumps, and home energy monitors. If you already have a heat pump or smart HVAC system with app-based monitoring, this is the same idea applied at a much larger scale: catching small issues early instead of waiting for a system to fail.
What Is Cape Cod Doing To Secure Its Energy Independence And Protect Its Natural Resources?
Cape Cod is trying to balance growth with protection of the natural resources that make it a place people want to live and visit, and the regional planning body behind that effort is the Cape Cod Commission. With only about 14% of the Cape's land still undeveloped and unprotected, the Commission uses development agreements — negotiated contracts with towns and builders — to steer growth toward areas with the infrastructure to support it and away from sensitive land, while also pushing for things like affordable housing and open space preservation. On the energy side, the picture is mixed. Two years after federal regulators awarded three offshore wind lease areas near Cape Cod, one developer has agreed with the Trump administration to give up one of those leases. Meanwhile, the Cape Cod Ocean Management Plan, reviewed every five years, sets rules for where offshore energy projects, cables, and other ocean uses can go, protecting whale habitat, eelgrass beds, and fishing grounds in the process. For residents, the most direct option right now comes through electricity supply rather than home upgrades: Cape Light Compact, working with supplier NextEra, offers a 100% renewable electricity product that matches a customer's annual usage above the state's mandated renewable level with renewable energy certificates. It's the default option for customers enrolled in the aggregated electric supply, meaning some Cape households may already be getting this greener power mix without having signed up for it separately. Checking your own electric bill or the Cape Light Compact program details would confirm whether you're enrolled.
As more data center trip off the grid, ‘ride-through’ rules gain steam
A big grid disturbance in Northern Virginia last week knocked about three gigawatts of data center load offline at once, the largest such event so far. Data centers switched to backup diesel power, and grid operator PJM and utility Dominion Energy said they stabilized voltage within about 10 minutes without causing outages. But the incident is part of a growing pattern: data centers are increasingly disconnecting from the grid during minor voltage disturbances to protect their equipment, and when a large cluster drops off at once, it can create excess power on the grid and risk cascading blackouts. In response, regulators are pushing "ride-through" rules that would require data centers to stay connected to the grid during brief voltage dips, similar to standards power plants already follow. The national grid reliability body, NERC, has signaled it wants such rules but final federal approval could be years away. Texas has moved faster, approving rules that take effect August 1 for new large power users like data centers and crypto miners, though existing facilities are exempt unless they fail to ride through disturbances, in which case they must report the cause and fix it within 180 days. The data center industry has pushed back, questioning whether regulators understand the technical limits of their equipment. None of this changes anything for homeowners directly, but it reflects rising strain on the grid from data centers and AI, a trend that can affect electricity reliability and costs in regions with heavy data center growth.
NextEra’s Dominion buy is about more than load growth
NextEra, the country's largest renewable energy developer, is buying Dominion Energy for $67 billion, in what would be the biggest utility merger in U.S. history. Dominion serves Virginia's "Data Center Alley," and the deal would let NextEra plug its growing battery storage business into a utility with a long line of data centers waiting to connect. But the merger is also about NextEra's own future: federal tax credits that have supported its solar and wind projects for decades are set to disappear for projects built after 2030, and buying a large regulated utility helps the company diversify away from that risk. The deal still needs approval from federal regulators, the Nuclear Regulatory Commission, and utility commissions in Virginia and the Carolinas, with a close expected in the second half of 2027. Virginia's decision is seen as the most important, given ongoing debate there over who should pay for the costs of the data center boom. The merger agreement includes large penalty payments if it falls apart — NextEra would owe Dominion nearly $4.83 billion if regulators block the deal, a sign the companies see regulatory approval as the biggest risk. For homeowners, this is a corporate and regulatory story rather than one with immediate effects on bills or programs. If you get electricity from Dominion or NextEra's Florida Power and Light, the merger could eventually shape rates or investment decisions, but any changes are still years away and depend on regulators' approval.
EMF?
A homeowner building a new house asked whether it's a problem that the electrical service entrance sits on the outside wall of the den, right where the family plans to put a couch and watch TV with a young child nearby. The house is already framed and wrapped, so the location can't be moved at this point. An expert who designs large-scale electrical systems for data centers and telecom sites answered plainly: don't worry about it. The two "hot" wires coming in from the utility carry current that's out of phase with each other, so their magnetic fields largely cancel out. If those wires run through steel conduit, the metal acts as a shield and blocks almost all of the magnetic field from radiating outward. He noted that people who work around far more powerful electrical equipment their whole careers, including multiple generations of the same family, don't show any pattern of health problems from it. For anyone who wants extra peace of mind, adding some sheet steel around the area (even thin gauge steel) can block more of the field, though the expert said it isn't necessary. He also pushed back on the idea of "dirty electricity" and products marketed to fix it, calling that concept unfounded and not worth spending money on. The bottom line for a home electrical service entrance: it's not something to lose sleep over, and no special remodeling is needed to address it.
PJM board proposes backstop capacity auction, data center curtailment plans
PJM, the grid operator serving 13 Mid-Atlantic and Midwest states plus Washington, D.C., is moving to deal with a power supply shortfall largely driven by data centers. Its board has proposed a one-time backup power auction this fall to fill a 6.8-gigawatt gap left from its last capacity auction, plus a separate plan that would force large new data centers to cut their power use, or switch to backup generators, when the grid gets close to emergency conditions. Both plans still need approval from federal regulators. If you live in one of PJM's states, this matters mainly through your electric bill. Data centers already in the queue have been pushing up the price utilities pay for backup power capacity, and those costs get passed to households. PJM's board wants new data centers that don't bring their own power supply excluded from future demand forecasts, which analysts say could help slow those cost increases over time. But critics, including PJM's own market monitor, warn the new backup auction could still raise costs, and that pulling data centers out of emergency-response duty rather than building more actual power plants doesn't fix the underlying supply problem. None of this requires anything from you directly. But if your utility bill has been climbing and you're in PJM territory, this is part of why: demand from data centers is outpacing new power plant construction, and regulators are still working out how to spread the cost between big commercial users and regular households.
Hybrid Sales Rise While Battery Electric Sales Remain Lower After Tax Credit Expiration
Electric vehicle sales are shifting, and the numbers tell a clear story about what happened after federal tax credits ended. Two credits for buying or leasing new electric vehicles expired on September 30, 2025. In the month before that deadline, battery electric vehicles hit a record 12% of new light-duty vehicle sales. Since then, their share has fallen. In the second quarter of 2026, battery electric vehicles made up 6% of new vehicle sales, down from 7% a year earlier. Plug-in hybrids (vehicles that can plug in but also run on gas) dropped too, from 1.9% to 1.4% of sales over the same period. Regular hybrids, which run on gasoline and don't plug into the grid, moved the opposite direction. They now account for a record 16% of new vehicle sales, up from the year before. Hybrids never qualified for the federal tax credits that expired, so their gains suggest buyers are leaning toward vehicles that don't depend on that incentive. Even the luxury car market, where battery electric vehicles have traditionally sold well, saw a drop: electric vehicles fell from 22% to 14% of luxury sales in the same one-year period. For homeowners thinking about an electric vehicle, this means the federal purchase incentives that applied through September 2025 are gone. Whether any state-level rebates or credits still apply depends on where you live, so it's worth checking what your own state currently offers. Despite the recent sales dip, electric vehicles still make up only about 2% of all registered vehicles on the road, based on the latest full-year data available.
Solar-powered EV carshare pilot launches in Massachusetts
A new low-cost carsharing program has launched in four Massachusetts communities, aiming to give lower-income residents access to electric vehicles. Called CommunityEV Carshare, the pilot offers discounted hourly EV rentals in Boston, Chelsea, Framingham, and Quincy, run through Zipcar in partnership with the Metropolitan Area Planning Council. The project got its start with a $1 million grant from the Massachusetts Clean Energy Center. The setup uses four EVs — three Hyundai Konas and a Kia Niro — each paired with a solar-powered charging station from Beam Global. These stations have a solar canopy on a raised arm, so they don't need trench digging or a connection to the electric grid, which lets them get installed faster than typical chargers. To make the cars affordable, Zipcar dropped its usual $25 application fee and cut the annual membership fee from $90 to $35 for this program. Rental rates are $11 an hour on weekdays and $13 on weekends, covering insurance and charging — well below the standard $14.50 to $17 hourly rate Zipcar normally charges. In Boston and Chelsea, the cars are open to anyone living in the public housing complexes where they're parked. In Framingham and Quincy, drivers need to show they already receive government assistance, such as SNAP or MassHealth, the state's Medicaid program. The cars are already on the road, and organizers plan to track who uses them and how, hoping the data helps expand affordable EV access elsewhere.
T1 Energy acquires TOPCon solar patent from Evervolt
A U.S. solar manufacturer, T1 Energy, is buying full ownership of the patents behind TOPCon solar cells, a high-efficiency solar panel technology, from a company called Evervolt Green Energy. The deal is worth $135 million and means T1 Energy will no longer pay licensing royalties to use this technology, since it now owns it outright. For homeowners, this isn't a program or rebate you can apply for — it's a business move in the solar manufacturing world. But it does point to more TOPCon panels being made in the U.S. T1 Energy is building a solar cell plant in Austin, Texas, aiming to start production in the fourth quarter of 2026. That plant will supply cells to the company's existing module assembly plant in Dallas, which is already making solar panels at a rate of 3.4 gigawatts a year. Owning the technology outright, rather than licensing it, is meant to make the company's domestic manufacturing more competitive and cost-efficient. The company has also been expanding beyond solar panels. It recently bought battery storage maker KORE Power for $32 million, which lets it pair its solar panels with battery systems for large customers. None of this changes what's available to homeowners right now, but as more TOPCon-based panels are made domestically, it could mean more of this panel technology showing up in home solar installations and incentive programs down the road.
T1 Energy buys TOPCon patents through deal with Evervolt
T1 Energy has bought a set of solar patents for $135 million from a company called Evervolt Green Energy Holding. The patents cover TOPCon technology, a design used in many solar panels that boosts how much electricity a panel can produce from the same amount of sunlight. T1 had previously been licensing this technology rather than owning it outright. Evervolt itself had bought the patents from Trina Solar, a major panel maker, so this deal moves the underlying intellectual property from Trina's old buyer to T1, a U.S. solar panel manufacturer. For homeowners, this is mainly a business story about who controls the patents behind a common panel technology, not a change to any product on the market today. TOPCon panels already sold and installed on homes are not affected. It's worth noting that parts of two of these same patents were recently ruled "unpatentable" by the U.S. Patent and Trademark Office, after Trina had accused other panel makers of infringing on them. That ruling could limit how much power T1 actually gains from owning the patents, even after paying for them. None of this changes rebates, panel pricing, or availability for someone considering solar right now. It's a shift in ownership and legal standing within the solar manufacturing industry, worth knowing about mainly if you're following where the panels on your roof, or the ones you're shopping for, actually come from.
Oak Ridge National Laboratory deploys Viridi fail-safe battery system for live-grid control research
A federal research lab in Oak Ridge, Tennessee, has been testing a battery storage system built by Viridi to see how well new grid-control technology holds up in real-world conditions, not just in a simulated lab. The lab, part of Oak Ridge National Laboratory, moved from indoor testing to an outdoor site where it connected physical battery hardware to the actual power grid. The battery unit involved, called the RPS 150, stores about 147 kilowatt-hours of energy and can charge or discharge at 30 kilowatts. It's designed with a "fail-safe" architecture meant to stop thermal runaway (a chain reaction that can cause battery fires) at the individual cell level, which is why the manufacturer says it can be used in occupied buildings and tight spaces where standard lithium-ion batteries often run into safety and permitting problems. The system carries several UL safety certifications, and multiple units can be linked together for larger installations. For homeowners, this isn't a product or rebate you can act on right now. It's a research project focused on how utilities might better coordinate batteries and other distributed energy resources, like rooftop solar or home batteries, across the grid as demand grows. The lab plans to publish full results in the coming months, and the work is described as the first phase of an ongoing collaboration. If safer, more fire-resistant battery designs like this eventually reach the consumer market, they could matter for anyone considering a home battery, but that step is not part of this project.
A Ventilator Designed for Use Where Space is Limited
Greenheck Fan Corp. has added a new ventilator, the Model IV, to its lineup of units that bring in 100% outdoor air. It joins the existing Model IVE. Both are built for tight spaces, like mechanical rooms, attics, and basements, and are designed to fit through 30-inch doors and elevators or hang from a ceiling. The two models differ mainly in how they handle energy. The Model IVE uses a small enthalpy wheel, a spinning device that transfers both heat and moisture between incoming and outgoing air, cutting energy loss by up to 85%. The Model IV skips that feature. Both come with hot water and chilled water coils, plus electric backup heat up to 45 kW. This kind of equipment is mainly aimed at commercial and institutional buildings, like schools, hospitals, and nursing homes that need constant fresh-air ventilation, as well as high-rises and buildings with roof shapes that make a rooftop ventilation system impractical. It is also pitched for all-electric building projects. There is no direct residential rebate or program tied to this announcement, and it is not a product built for typical single-family homes. Still, for homeowners paying attention to trends in electrification and indoor air quality, it is a sign that manufacturers keep developing more compact, efficient equipment for delivering outdoor air, which may eventually filter down into home-scale options.
Thousands of Comments Call on FERC to Reconsider Proposed Expansion of Blanket Certificate Program
The Federal Energy Regulatory Commission (FERC) has proposed expanding its "blanket certificate" program, which lets gas pipeline companies get automatic approval for projects without the usual environmental review or public input. The change would raise the automatic-approval cost limit from $14.5 million to $30 million, and a related "prior notice" cap from $41 million to $86 million. That means larger pipeline and gas infrastructure projects could move forward with less oversight and less chance for nearby communities to weigh in. Sierra Club submitted more than 3,000 comments opposing the plan. The concern is tied to a real case: a proposed pipeline in New Mexico, called the Green Chile Pipeline, that would supply a large data center near Las Cruces. Under current rules, that project had to go through full environmental review after Sierra Club and other groups challenged it. Under the proposed higher thresholds, a similar project might not face that same scrutiny in the future. FERC has also said it will stop doing "cumulative impact" analyses, which look at the combined effect of multiple projects in an area, on top of this proposed change. This is a federal regulatory matter, not something that directly changes rebates or upgrade programs for your home. But it's a sign of looser oversight for gas infrastructure generally, which matters if you live near a proposed pipeline or gas facility, or if you're weighing gas versus electric options for your own home's energy future.
Georgia Power pairs 49.5-MW storage facility with existing solar project
Georgia Power has finished a 49.5-megawatt battery storage facility near Valdosta, added on to its existing Moody Solar project in Lowndes County. The battery system stores solar power generated when demand is low and releases it later when demand rises, a setup known as solar-plus-storage. The Georgia Public Service Commission approved this project along with three other battery storage projects around the state, in Bibb, Cherokee, and Floyd counties, together totaling 715 megawatts. Beyond these, the commission has approved nine more battery storage facilities at eight sites across Georgia, adding over 3 gigawatts of planned storage capacity. These are planned at Georgia Power plants including Bowen, Hammond, McIntosh, Wansley, and Yates, plus standalone sites in Hall and McDuffie counties. Two more solar-plus-storage projects, totaling 350 megawatts, are planned for Laurens and Dougherty counties. For homeowners in Georgia Power's service area, this is part of a broader build-out of battery storage tied to solar power, meant to make the electric grid more reliable, especially during peak demand periods. It does not involve any home upgrades or rebates directly, but it reflects the state's utility adding more storage capacity to its power supply, which can help support grid stability as more renewable energy comes online.
Mitsubishi’s ‘all-new’ Eclipse Sportback EV is a rebadged Nissan Leaf
Mitsubishi is bringing an electric vehicle back to the US and Canada for the first time in over a decade, calling it the 2027 Eclipse Sportback EV. But it's really a rebadged version of the next-generation Nissan Leaf, built on the same underpinnings and sourced from Nissan through the companies' alliance partnership. Mitsubishi gave it different bumpers, lights, wheels, and badging, but the mechanical parts are unchanged: a 75 kWh liquid-cooled battery, a NACS charging port (the same plug Tesla Superchargers use), and 150 kW fast charging that can take it from 10% to 80% in about 35 minutes. Those numbers match the 2026 Nissan Leaf exactly. The car is expected to launch in late summer or early fall 2026 through roughly 300 US dealers. Mitsubishi hasn't announced price or driving range yet. For reference, the Leaf it's based on starts at $29,990 and gets an EPA range of 259 to 303 miles depending on trim, so the Eclipse Sportback will likely land somewhere close to that, possibly a bit higher given the styling changes. For a homeowner thinking about charging at home, this doesn't change much from what you'd expect with a Leaf: it uses the same battery and charging hardware, so home charging speeds and equipment needs should be similar. The bigger unknowns right now are just the price and range figures Mitsubishi hasn't released.
As more data centers trip off the grid, ‘ride-through’ rules gain steam
Last week, a transmission line fault in Northern Virginia knocked about three gigawatts of data center load off the grid, the largest such drop-off yet. The data centers switched to backup diesel generators, and grid operator PJM and utility Dominion Energy said they stabilized voltage within about 10 minutes with no outages. But the event highlighted a growing problem: data centers are designed to disconnect quickly during brief voltage dips to protect their equipment, and when a huge cluster does this at once, it can destabilize the wider grid. In response, regulators are pushing "ride-through" rules that would require data centers to stay connected during minor grid disturbances, the same standard already applied to power plants. Texas regulators approved rules taking effect August 1 for new large power users, including data centers and crypto mining operations; existing facilities aren't covered but must report and fix the problem within 180 days if they fail to ride through a disturbance. National reliability standards from NERC, the industry's watchdog group, are still years away from final approval. For homeowners, this isn't a direct action item, but it matters for grid reliability. As data centers multiply and strain electricity demand nationwide, how well they're regulated affects the stability of the power supply everyone relies on, including the reliability of your own home's electricity. Some companies are already building backup battery systems and flexible data center designs meant to avoid these grid shocks altogether, which could ease pressure on the grid as this technology spreads.
CATL Net Profit Jumps 42%
CATL, the Chinese company that makes more EV batteries than anyone else in the world, just reported a 42% jump in net profit for the first half of 2026, hitting $6.4 billion on $40.9 billion in revenue. That growth came even while China's overall car market has been slow, which says something about how dominant CATL has become. The company's battery business, mostly for electric vehicles, grew revenue 46% year over year. But its stationary energy storage business, the large batteries used to store power from solar and wind or back up the grid, grew even faster, up 88% year over year. This is the part that touches homeowners most directly: CATL batteries show up in home battery backup systems and in the grid-scale storage that utilities increasingly rely on. As CATL scales up and its costs come down, that can eventually mean cheaper battery storage options for houses with solar panels or backup power needs, though prices and availability still depend on your own utility and state programs. CATL also announced a stock buyback, planning to spend up to 40 billion yuan repurchasing its own shares to boost returns for shareholders. That's a financial move for investors and doesn't change anything for someone shopping for a home battery today, but it does underline how much cash the company is generating as it keeps expanding.
Ameren Missouri Bets Big on Expensive New Gas
Ameren Missouri, the utility serving much of the state, has announced plans to build a large new natural gas power plant, 2.1 gigawatts, in St. Charles County. The company hasn't released a cost estimate, but a similarly sized gas project in South Carolina recently saw its price tag double, from $2.5 billion to $5 billion. By comparison, a solar-and-battery-storage project of similar size planned in Arkansas is expected to cost $3.5 billion with no state subsidies, making it roughly cost-competitive with what Ameren's gas plant will likely cost. The bigger issue for customers is how Ameren plans to pay for construction. Under a state law called Senate Bill 4, the utility can ask regulators for permission to use a financing method known as Construction Work In Progress, or CWIP. This would let Ameren raise monthly bills years before the plant is even finished and generating power. Critics, including the Sierra Club, point to independent analysis showing that CWIP tends to raise the total cost of projects rather than save money, despite utility claims of interest savings. It's also unclear how much of the cost will be shouldered by data centers versus regular residential customers. For Missouri homeowners served by Ameren, this means a possible rate increase tied to a gas plant that won't deliver electricity for years, layered on top of what critics call an already difficult affordability environment for utility customers in the state.
Is incrementalism enough in a systems-change world?
This piece is a discussion between two sustainability commentators about whether corporate climate work actually adds up to real change, rather than news about home energy programs or rebates. It does not cover any new policy, incentive, or technology relevant to upgrading a house. The conversation does touch on one point that connects to home energy: solar power. One speaker recalled research from 25 years ago that mapped out what it would take to make solar cheap and common, using a roadmap covering technology, policy, and financing. At the time, getting solar down to $1 per installed watt seemed like a distant goal. Today, installed solar can cost as little as 30 cents a watt, which the speakers point to as proof that slow, incremental progress on energy technology can eventually produce big, real-world results, like the affordable solar systems now available to homeowners. Beyond that example, the discussion is about corporate sustainability strategy, professional burnout, and a technical framework called "spheres of influence," recently adopted into a forthcoming ISO net-zero standard for companies to measure their broader climate impact. None of this changes what programs, rebates, or technologies are available to homeowners right now.
Want a home battery on a budget? Consider a portable, DIY system.
A whole-home battery, wired in by an electrician, usually costs at least $15,000. If that's out of reach or you rent, a portable power station is a cheaper, plug-and-play alternative. These battery boxes range from toaster-size to carry-on-size, cost a few hundred to a few thousand dollars, and recharge from a wall outlet, a car, or portable solar panels. They're sold at Best Buy, Costco, and Home Depot, among other retailers. During an outage they can run a fridge, Wi-Fi router, phone, laptop, window air conditioner, or CPAP machine. Some models also use an app to charge up on cheap off-peak electricity and discharge during expensive hours, trimming your bill even when there's no outage. Before buying, list what you'd want to power and add up the watt-hours you'd need for as long as you'd need them — an online worksheet can help with the math. Storage capacity ranges from about 500 to 4,000 watt-hours for most portable units, though some can be expanded much larger. Worth checking on any model: lithium-iron-phosphate battery chemistry (safer and longer-lasting), at least a one-year warranty, a "pure sine-wave" inverter (needed to safely run sensitive electronics), and whether it can charge while powering a device at the same time. Newer, two-way models that can send stored power back into a home's outlets are starting to arrive in the US, but so far only in Utah and Maryland, two states that have legalized this kind of home solar and battery setup. Whether your state allows it is worth checking.
Building connections: Find your community at the Green Schools Conference
This is a conference announcement, not something that touches home energy upgrades directly. The U.S. Green Building Council's Center for Green Schools is holding its 17th annual Green Schools Conference from Feb. 8–10, 2027, in Austin, Texas, at the Hyatt Regency Austin. It brings together educators, school district staff, architects, engineers and others working on healthier, more sustainable school buildings. The event is organized with the Green Schools National Network and includes sessions, workshops, networking, and tours of sustainable buildings around Austin. A local host committee made up of school district sustainability staff, design firm representatives and nonprofit leaders is helping shape the 2027 program. Full registration and the conference agenda are expected to open in early fall 2026. For a homeowner, this news has no direct bearing on your own house or energy bills. It's aimed at people who work on school facilities and green-building programs professionally. If you have children in a district that's involved in sustainability efforts, this is the kind of event where district staff might pick up ideas for healthier, more efficient school buildings, but it doesn't involve any rebate, program, or deadline relevant to a home retrofit.
Tariffs won’t win America the industrial race
This is a big-picture policy piece about how the U.S. competes with China on energy technology, and it doesn't point to anything a homeowner needs to do. But it helps explain why some clean-energy technologies stay expensive here. The argument: China builds cheap solar panels, batteries, and other clean-energy gear quickly because its state banks and government-backed buyers absorb much of the financial risk on new projects. In the U.S., that risk instead falls on private investors, which makes early-stage clean-energy projects expensive to finance — sometimes costing developers more than 25% in financing costs, compared to 8-10% for established infrastructure. The piece argues tariffs on Chinese goods won't fix this underlying financing gap. The authors suggest a different path: large tech companies (Microsoft, Google, Amazon, Meta, Nvidia) are starting to invest directly in newer energy technologies like advanced geothermal, alongside utilities and investment firms, to share that risk. They also point to a need for more lenders and insurers willing to back unproven energy projects, similar to how the insurance industry created new financial tools after Hurricane Andrew in the 1990s. None of this changes rebates, incentives, or costs available to homeowners right now. It's a longer-term argument about how the U.S. might bring down the cost of technologies like advanced nuclear, geothermal, and batteries — the kind of innovations that could eventually affect home energy options, but there's no near-term program or deadline mentioned here.
BNEF chip-based model pegs US data center demand at 207 GW by 2033
Data centers built to power AI are pulling far more electricity than forecasters expected, and the gap between estimates keeps growing. A new analysis from BloombergNEF puts likely U.S. data center electricity demand at 118 gigawatts by 2030 and 194 gigawatts by 2035, sharply higher than the firm's own outlook from last December. A separate estimate based on projected computer chip deliveries suggests demand could hit 207 gigawatts by 2033. For comparison, a gigawatt is roughly enough power for hundreds of thousands of homes. The reason for the uncertainty is simple: data centers are being built bigger and faster than anyone predicted. A year ago, a 1-gigawatt project counted as large. Now more than 70 projects that size are in the pipeline, with some reaching up to 10 gigawatts. By the end of 2025, installed data center capacity nationwide was already 16% higher than forecasters had expected, with Texas seeing the biggest gap between prediction and reality. This matters to homeowners because all that new electricity demand has to come from somewhere. A recent estimate from Bank of America suggests the country may need more than 230 gigawatts of new power generation over the next five years, but utilities currently plan to add only about 93 gigawatts. How that gap gets filled, and who pays for the grid upgrades needed to serve these massive facilities, could affect electricity rates and reliability in the years ahead. It's worth watching whether your own state or utility discusses data center growth when explaining future rate changes.
OCI Holdings plans to double polysilicon production capacity by 2029
OCI Holdings, a South Korean chemicals company, plans to double its yearly production of polysilicon — a raw material used to make solar panels — from 35,000 to 70,000 metric tons by 2029. The company says the expansion is driven by demand tied to US artificial intelligence data centers and the space industry, both of which need reliable power and are turning to solar. OCI has also been in talks with SpaceX about a long-term polysilicon supply deal. Part of this involves building a solar supply chain meant to avoid restricted foreign suppliers when materials reach the US. OCI is linking its Malaysian polysilicon plant with a wafer factory in Vietnam run by NeoSilicon Technology, a company OCI now majority-owns. That Vietnam factory is set to grow sharply, from about 2.7 gigawatts of production capacity today to 11.5 gigawatts by 2029, with shipments to the US market expected to start next year. OCI has separately secured a $125 million loan from the International Finance Corporation to build a semiconductor-grade polysilicon plant in Malaysia. None of this changes what solar panels cost or which brands are available on your roof right away, but it points to more solar manufacturing capacity aimed at the US market in the next few years, built through supply chains designed to meet US rules on sourcing. If you're weighing solar for your home, this is a sign of expanding supply upstream rather than a direct change to today's pricing or incentives.
Skylight Insulation // Vancouver Island BC, CZ 4C
A homeowner on Vancouver Island is redoing a cathedral roof, swapping concrete tile for standing-seam metal, and adding two 36x36-inch skylights near the ridge of a steep, 15-foot-high ceiling. The new roof includes rigid metal panels, a peel-and-stick waterproofing layer, plywood sheathing, a ventilation gap, R22 Rockwool mineral-wool batt insulation between the rafters, a tightened poly vapor barrier, and a tongue-and-groove cedar interior ceiling. The open question is how much insulation the skylight "lightwell" — the boxed shaft that runs from the roof opening down to the ceiling opening — and its 6-inch curb need to avoid condensation and mold, since that area is hard to reach and repair once finished. This is a discussion thread, not a finished answer: the homeowner got conflicting advice, ranging from "no extra insulation needed" to "wrap both the outside of the curb and the inside of the shaft in rigid foam board or risk rot." No expert reply had been posted yet. For anyone with skylights, especially in a cold, damp climate, the underlying issue applies at home too: skylight shafts are a common weak spot for condensation and mold because they combine thermal bridging with hard-to-access corners. If you're planning a re-roof or skylight installation, it's worth asking your contractor specifically how the lightwell and curb will be insulated and air-sealed, not just the main roof deck.
MN8 Energy to acquire Greenbacker for $375 million, creating 6 GW renewable energy platform
Two large renewable energy companies are merging into one of the biggest clean power operators in the country. MN8 Energy is buying Greenbacker Renewable Energy for up to $375 million. MN8 currently runs 4.3 gigawatts of power generation across 29 states, and Greenbacker adds another 1.9 gigawatts across 22 states, including wind power alongside solar and battery storage. The combined company will keep the MN8 name and is expected to close the deal in the fourth quarter of 2026. This is a corporate merger between power companies, not a homeowner program. Neither MN8 nor Greenbacker sells directly to individual households — their customers are large businesses, utilities, and government agencies buying power under long-term contracts. About 94% of the combined company's power output is already locked into these long-term agreements. For homeowners, this deal has no direct bearing on rebates, incentives, or home energy upgrades. It reflects a broader trend of utility-scale solar, wind, and battery storage companies consolidating to meet rising electricity demand, driven partly by data centers and AI computing needs. That growth in large-scale clean power generation could, over time, affect regional electricity supply and pricing, but the merger itself does not create any new program, discount, or tax credit that a homeowner could apply for. If you are researching energy upgrades for your own house, this news is more about the power industry's structure than anything that changes what is available to you right now.
30-MW Nebraska microgrid gets a non-lithium battery boost
Lincoln, Nebraska's public utility is about to switch on a new grid battery that helps power the state Capitol and other government and public safety buildings during outages. The 3-megawatt battery, which can store 12 megawatt-hours of energy, is part of a 30-MW microgrid, a small local power network that can keep running key buildings even if the main grid goes down. The battery will add about 10% more capacity to that system and is set to start operating in the coming weeks. What makes this battery different is its chemistry. Instead of lithium, it uses zinc, a material the utility says is much harder to catch fire, which matters since it sits in a dense part of downtown Lincoln. Zinc batteries are still new to the U.S. market, but interest is growing as utilities look for alternatives to lithium for large-scale storage. For homeowners, this isn't a program you can sign up for or a rebate tied to your house. It's a utility-scale project meant to keep essential public buildings running, not private homes. But it's a sign of where battery technology is heading: zinc and other non-lithium batteries are starting to show up in bigger utility projects around the country. If that trend continues, it could eventually shape the battery options available for home backup systems too, though nothing here changes what's on the market for homeowners right now.
Will this work to insulate and air seal under a bay window
A homeowner on a building science forum asked for feedback on a project sealing and insulating the floor under a bay window, a spot that often lets in cold air and loses heat because it juts out past the house's foundation. The approach described: strip old sheathing and replace it with Zip System sheathing (a panel with a built-in weather barrier), frame the space with 2x6 lumber, add a half-inch of rigid foam board sealed at the edges along the sill, then fill the rest of the gap with rockwool (a mineral-wool insulation). The seams get sealed with liquid flashing, and the whole underside is covered with a thin white plastic sheet, also sealed at the edges. The poster asked whether the job also needs screened vents underneath. At the time this was posted, no one had answered yet, so there's no expert verdict on whether this method is sound or whether venting is needed. For homeowners with a bay window, this is a reminder that the floor cavity under one of these windows is a common weak spot for drafts and heat loss, and that fixing it involves both insulation and careful air sealing of the seams and edges, not just stuffing in more material. If you have a drafty bay window, the underside is worth checking, since gaps there can undercut insulation upgrades elsewhere in the house.
How do I get rid of a damp smell on a concrete floor?
This one is just a homeowner's question posted to an online forum, asking how to get rid of a damp smell coming from a concrete floor. At the time this was captured, no one had answered yet, so there's no fix or explanation to pass along. A musty or damp smell from concrete usually points to moisture moving through the slab, often from groundwater below or humid air condensing on a cool surface. Common culprits include a missing or damaged vapor barrier under the slab, poor drainage around the foundation, or high indoor humidity in a basement or ground-level room. Until this particular thread gets a real answer, homeowners dealing with the same issue might look at how their basement or slab area handles moisture: whether water pools nearby after rain, whether the space is poorly ventilated, or whether a dehumidifier changes the smell. There's no program, product, or rebate tied to this story, and no specific fix was given here. If you're smelling something similar in your own house, it's worth noting whether the smell is stronger in humid weather, whether the floor feels damp to the touch, and whether nearby grading or gutters direct water away from the foundation. Those details are usually what determine whether the cause is simple humidity or something more related to water getting into the concrete itself.
Tesla buys the entire output of a new 140 MW Texas solar farm
Tesla has agreed to buy all the power from a new 140-megawatt solar farm being built in northeast Texas. The farm, called Lumen Farm, is being developed by Zelestra, a renewable energy company. Construction starts in 2027, with the plant expected to go online in 2029. Neither company said what the electricity costs or exactly what it will power, though Tesla has large operations in Texas, including Gigafactory Texas and growing AI computing needs, that could use the supply. This isn't really a story about your own home upgrades, but it says something about where electricity demand is headed. Zelestra is one of the busiest solar developers in Texas, also selling power to Meta for its data centers. As more big companies lock up solar supply for factories and data centers, demand for electricity — and for the solar farms that generate it — keeps growing in states like Texas. One detail worth noting: Tesla itself sells solar panels, roofing, and batteries, and is even building a huge solar panel factory near Houston. Yet for its own power needs, it's buying from someone else's farm rather than building one itself, a sign that its solar manufacturing business is still ramping back up after years of being scaled down. None of this changes rebate programs or upgrade costs for homeowners, but it reflects rising demand for electricity and solar power nationwide, including in Texas.
Tesla buys 90% of a 509 MW Arizona solar and storage project
Tesla has agreed to buy 90% of the power from Project Sterling, a large solar and battery plant being built in Arizona by ContourGlobal, a power company owned by KKR. The project combines 509 megawatts of solar panels with a 360-megawatt battery system able to store around 1,440 megawatt-hours, enough to keep sending solar power to the grid after dark. It's expected to come online in 2028, and deals like this typically lock in power for 10 to 15 years. Terms weren't disclosed. This is Tesla's second big solar purchase in the same day. It also agreed to buy all the output from a 140-megawatt solar farm in Texas from developer Zelestra. Together, the two deals add up to more than 640 megawatts of solar and 360 megawatts of storage. Tesla is buying this power rather than building it itself because electricity demand is rising fast, partly from AI data centers, and Tesla needs cheap, reliable power for its own factories and computing operations quickly. None of this changes anything directly for homeowners, but it's a sign of where electricity demand and prices are heading. As data centers and industry compete harder for power, utilities and grid operators everywhere face more strain, which can affect electricity rates. Solar and battery storage, the same technologies at the center of this deal, are increasingly part of how homes also protect themselves against rising utility costs, though any home upgrade would depend on separate incentives and equipment choices available in your own state.
New study reveals how land use affects solar permitting timelines in California
A new study looks at why big solar farms in California take so long to get approved, and the answer mostly comes down to location. Researchers with The Nature Conservancy and ECOnorthwest studied 15 years of permitting records for 274 large solar projects, mostly in the San Joaquin Valley and West Mojave, an area that already holds nearly half the state's solar capacity. The clearest finding: projects built on land already changed by human use, like former farmland, move through county permitting much faster than projects on undisturbed open space. Solar projects on developed land took a median of 110 days to approve, versus 338 days on agricultural land and 621 days on open space. Project size and distance to nearby towns, factors often blamed for delays, turned out to matter far less. One twist: farmland enrolled in the Williamson Act, a program that gives landowners tax breaks for keeping land in agriculture or open space, actually faced lower approval odds and about 245 extra days of delay. This doesn't directly change anything for homeowners' own rooftop or home solar decisions, since it's about permitting for utility-scale solar farms, not household systems. But it does show where California's push for more clean electricity on the grid is likely to run into friction, and where it might move faster, as the state tries to close the gap between how much solar it's building now and how much it needs to meet its 2045 clean electricity goal.
RFP alert: DTE Energy seeks 800 MW from projects located in MISO states
DTE Energy, Michigan's largest utility, plans to seek 800 megawatts of new solar and wind power through a request for proposals it will issue on August 11, 2026. The power will go toward its Voluntary Green Pricing program, which lets customers pay to have more of their electricity come from renewable sources. Projects must be up and running by the end of 2030. Notably, this is the first time DTE has looked beyond Michigan for these projects. Eligible sites now include parts of Arkansas, Illinois, Iowa, Minnesota, Mississippi, Missouri, Texas, and Wisconsin, along with Michigan, as long as they fall within specific grid zones set by the regional grid operator MISO. Projects connected directly to DTE's local power lines also qualify. For homeowners, this isn't something you sign up for directly, but it points to where green pricing programs are headed. Michigan's Voluntary Green Pricing programs are set by state law and reviewed every two years by state regulators, and they've become a major source of new renewable energy growth in the state. If you're a DTE customer already enrolled in green pricing, or thinking about it, this expansion means the utility is casting a wider net to meet demand, rather than relying only on in-state projects. It's a sign that interest in paying extra for renewable power has kept growing, and utilities are working to keep up with it.
How Illinois’ new energy law is creating a market for Chicago properties
Illinois passed a new energy law in January, the Clean and Reliable Grid Affordability Act, that aims to add about 3 gigawatts of battery storage in the state by 2030. Batteries need somewhere to sit, and developers are now looking to lease flat, underused land near the power grid, in the Chicago area, for these projects. This is mainly relevant to owners of vacant lots, industrial parcels, farmland near substations, or extra parking areas rather than typical homeowners. For landowners, the deals work like a long-term land lease: 15 to 20 years, with annual payments that increase over time, no upfront cost, and the developer handling construction and maintenance. A small battery system needs about 11,000 square feet, and a bigger one about an acre. In ComEd's service area, most sites can support up to 5 megawatts, though some properties with multiple tax parcels or extra land could host up to around 10 megawatts. Whether a site works depends heavily on its location relative to grid capacity, along with its size, flatness, and zoning. This isn't a program offering rebates or upgrades for houses. It is a land-leasing opportunity tied to grid-scale battery storage, aimed at owners of large or idle properties. For most homeowners, it won't apply directly, though it does reflect a broader push in Illinois to expand battery storage capacity as part of the state's energy plans.
CenterPoint says 14 GW likely eligible for Texas’ ‘Batch Zero’ large-load interconnection
If you're a CenterPoint Energy customer in the Houston area, big growth is coming to the grid you're connected to. The utility says it expects 14 gigawatts of new large-load demand — mostly from data centers — to move through Texas' new "Batch Zero" process for connecting big power users to the grid. That's more than a 65% jump over the region's current peak demand, and CenterPoint expects most of these projects to be up and running by the end of 2030. CenterPoint is raising its spending plan by $1.2 billion, bringing its 10-year investment total to $66.7 billion through 2035, partly to build out infrastructure for this new demand. The company says this growth should actually help keep bills in check: it's projecting over $5 billion in savings for residential and commercial customers over the next decade, as costs get spread across more electricity use. Whether that plays out as promised is something worth watching on your own bill over time. The company also expects an extra 2 gigawatts of demand from local growth — new manufacturing and population increases in the Houston area — separate from the data center boom. None of this changes what a homeowner needs to do right now, but it signals that Texas utilities are betting heavily on rising electricity demand in the years ahead, which could shape future rates, grid reliability, and how utilities justify infrastructure spending in your area.
Next stop for California’s high-speed rail: Finding private investors
California's high-speed rail project is looking for private money to help pay for the line connecting San Francisco and Los Angeles. The state's rail authority signed a $25 million agreement with a group of companies that will spend the next six months studying ways to fund the project's expansion beyond the Central Valley, where construction is already underway between Merced and Bakersfield. The full San Francisco-to-LA line is expected to cost $126 billion, with service targeted for 2040. Voters approved $10 billion in bonds back in 2008, and the state has since committed $1 billion a year through 2045, but that still leaves a large funding gap, especially since federal support has been inconsistent. Experts quoted in the story are split on what this new agreement will actually produce. Some doubt private investors will put money directly into building the railway itself, since there's no guaranteed revenue yet to make it profitable. Others think the money could show up in different forms, such as development around future train stations, or utilities and cable companies paying to run power or fiber optic lines alongside the tracks. None of this changes anything for homeowners right now. It's a early-stage financing discussion, not a funding commitment, and the companies involved are still just studying options. If you live near the Central Valley construction zone or near a planned station site in the Bay Area or Los Angeles, this is worth watching over time, since station-area development could eventually affect nearby property and land use.