How a solar racking company made electrical bonding easier

A Buffalo company called DynoRaxx makes a small clip called DynoBond that's used in rooftop solar installations to handle "electrical bonding" — connecting the metal frames of solar panels together so electricity has a safe path to ground. Without proper bonding, a solar system carries a risk of electrical shock.

Normally, installers ground a solar array by attaching metal lugs to each panel frame and running copper wire through them. DynoBond offers a simpler alternative: a copper wire with stainless-steel clips on each end that snap by hand onto the edges of neighboring panel frames, no tools needed. The company says an installer can bond about 50 kilowatts worth of panels in about an hour. DynoBond was originally built to solve a problem specific to DynoRaxx's own racking, which is made of non-conductive fiberglass rather than metal, but it has since become popular enough that it's now sold and packaged with competing racking systems, not just DynoRaxx's own.

For a homeowner, this isn't something you'd need to research or request by name — it's a background hardware choice installers and racking companies make, not a program or rebate. But it's a sign that the mechanics of grounding solar systems, particularly rooftop residential ones, have gotten simpler and cheaper to install over the past decade, which can be part of why panel installation costs and labor time have come down over time. The clips are made in the U.S., which also feeds into "made in America" claims some installers may make about their solar equipment.