https://example.com/updates/Plug-in solar law and kit data changesen-ushttps://example.com/updates/2026-11-10-site-data_correctionTue, 10 Nov 2026 12:00:00 GMTNREL PVWatts figures are now available for all 50 states and DC in two cases: panels tilted at 20° facing south, and panels hung vertically on a south-facing railing. Savings estimates now show both.https://example.com/updates/2026-11-10-site-kit_updateTue, 10 Nov 2026 12:00:00 GMTIn Utah, Maryland, Colorado, Connecticut and Virginia, whose laws ask for lab certification without naming UL 3700, a kit with a lab certificate we have seen for its inverter is now shown as "Likely compatible: confirm with seller" (APsystems EZ1-LV). Claims without certificates are labelled as claims. Connecticut and Maryland kits with several inverters carry a device-count note.https://example.com/updates/2026-11-10-site-data_correctionTue, 10 Nov 2026 12:00:00 GMTEstimates now show a typical share of output used at home (69%), from HTW Berlin's plug-in solar model for an 800 W system without a battery in a 3,000 kWh/yr home, next to the 100% best case. The calculator lets you change the share.https://example.com/updates/2026-11-10-site-data_correctionTue, 10 Nov 2026 12:00:00 GMTState electricity prices now use EIA's residential average for September 2025 – August 2026 (12 months), total revenue divided by total sales, replacing the January-August 2026 figure.https://example.com/states/new-hampshire/2026-11-10-NH-data_correctionTue, 10 Nov 2026 12:00:00 GMTReports and an unofficial copy of the final text say SB 540 became Chapter 262, effective January 1, 2027. We could not reach the state legislature website to confirm it, so every New Hampshire rule is held as unknown until we do.https://example.com/states/california/2026-09-30-CA-law_signedWed, 30 Sep 2026 12:00:00 GMTSB 868 (Electricity: portable solar generation devices) was signed on 2026-09-30. Effective date: 2027-01-01.https://example.com/states/new-jersey/2026-09-01-NJ-law_signedTue, 01 Sep 2026 12:00:00 GMTS2368 / A4836 (Garden State Balcony Solar Act) was signed on 2026-09-01. Effective date: 2027-03-01.https://example.com/states/vermont/2026-06-16-VT-law_signedTue, 16 Jun 2026 12:00:00 GMTS.202 (An act relating to plug-in photovoltaic devices) was signed on 2026-06-16. Effective date: 2026-07-01.https://example.com/states/connecticut/2026-06-04-CT-law_signedThu, 04 Jun 2026 12:00:00 GMTHB 5340 (An Act Concerning Renewable Power Generation) was signed on 2026-06-04. Effective date: 2026-10-01.https://example.com/states/maryland/2026-05-12-MD-law_signedTue, 12 May 2026 12:00:00 GMTHB 1532 (Utility RELIEF (Reducing Energy Load Inflation for Everyday Families) Act) was signed on 2026-05-12. Effective date: 2026-07-01.https://example.com/states/colorado/2026-05-07-CO-law_signedThu, 07 May 2026 12:00:00 GMTHB26-1007 (Improve Customer Use Distributed Energy Resources) was signed on 2026-05-07. Effective date: 2026-08-12.https://example.com/states/virginia/2026-04-22-VA-law_signedWed, 22 Apr 2026 12:00:00 GMTHB 395 (Electric utilities; small portable solar generation devices, local regulation) was signed on 2026-04-22. Effective date: 2027-01-01.https://example.com/states/maine/2026-04-06-ME-law_signedMon, 06 Apr 2026 12:00:00 GMTLD 1730 (SP 676) (An Act to Make Small Plug-in Solar Generation Devices Accessible for All Maine Residents to Address the Energy Affordability Crisis) was signed on 2026-04-06. Effective date: 2026-07-29.https://example.com/states/utah/2025-03-25-UT-law_signedTue, 25 Mar 2025 12:00:00 GMTH.B. 340 (Solar Power Amendments) was signed on 2025-03-25. Effective date: 2025-05-07.