Solar States — guides https://solarstate.info/ Verifiable, plain-English solar guides for U.S. homeowners. New guides and corrections are announced here. The 30% federal solar tax credit, explainedhttps://solarstate.info/learn/1/https://solarstate.info/learn/1/Who qualifies, what it covers, and why the IRS no longer allows it for systems placed in service after December 31, 2025.Sat, 08 Aug 2026 12:00:00 GMTNet metering vs net billinghttps://solarstate.info/learn/2/https://solarstate.info/learn/2/Retail credits, export rates, and why your utility's rule changes your battery decision — with California's NEM 3.0 as the worked example.Sat, 08 Aug 2026 12:00:00 GMT$/W — the only number that mattershttps://solarstate.info/learn/3/https://solarstate.info/learn/3/How to compare installer quotes in dollars per watt — with the 2026 marketplace averages for the U.S. and four sample states.Sat, 08 Aug 2026 12:00:00 GMT