New Hampshire solar calculator

Live production from NLR (formerly NREL) PVWatts V8. New Hampshire runs NEM 2.0 under PUC DE 16-576 (Order 26,029): exports credited via the 100% supply + 100% transmission + 25% distribution formula, netting out to about 85% of retail. LOCKED through January 1, 2041 — the strongest US NM certainty (15+ years guaranteed). Eversource (default, ~71% of NH residential) ~$0.25/kWh retail, ~$0.21/kWh export (84%). Unitil at Portsmouth ~$0.26 retail, ~$0.22 export (85%). NH has NO state sales tax (one of 5 no-sales- tax US states) — automatic savings. Property tax exemption (RSA 72:62) is CONDITIONAL town-by-town — about 66% of NH municipalities have adopted, requires Form PA-29 by April 15; verify your town locally. State rebate ($0.20/W max $1,000) was PERMANENTLY REPEALED by SB 303 (2024) — dead; some sites still cite it incorrectly. Federal §25D = $0 (OBBBA repeal). Eversource ConnectedSolutions battery program: $230/kWh enrolled, max $3,000 (modeled $2,300 on default 10 kWh battery). NHEC, Unitil, Liberty do NOT have comparable battery programs. NH has no aggregate NM cap (highest in New England); residential ≤100 kW. Defaults: south-facing roof mount, 20° tilt, 14% losses.