Sierra Club North Carolina Reacts: NextEra & Dominion File Application to Merge, Form Country’s Largest Utility

Two large utilities, NextEra Energy and Dominion Energy, have filed applications with regulators in North Carolina, South Carolina, and Virginia to merge into one company. If approved, the combined utility would serve about 10 million customers across the Southeast, making it the largest utility in the country.

The merger filing includes a bill credit of about $10 a month for 24 months for a typical residential customer using 1,000 kWh. But the Sierra Club points out that credit is smaller than the $17 monthly rate increase Dominion already proposed in North Carolina in May, meaning many customers could still end up paying more overall. The filing does not include commitments to retire aging coal plants, limit new gas-fired power plants, expand energy efficiency programs, speed up clean energy investment, or protect residential customers from cost increases tied to data centers. Dominion has said it needs $55 billion in Virginia and $8 billion in South Carolina over the next five years for capital costs, and the Sierra Club argues those costs are driven largely by data center demand rather than by homes.

For now, this is a regulatory filing, not a done deal. Utility commissions in all three states still have to review and rule on the applications. If your electricity comes from Dominion or NextEra in one of these states, this is worth watching, since it could affect future rates and how quickly efficiency and clean energy programs in your area expand or stall.