In short: Plug-in solar is not banned anywhere in the United States, but whether you can use it without utility paperwork depends on your state. As of 2026, 10 states have passed plug-in solar laws and 35 states in total have introduced legislation. Passed does not always mean in effect yet, and a few states add their own conditions, so the rules are a genuine moving target. The most reliable way to check where you live is our legislation tracker, where you can open your stat