What is modeled — and what is not
Production
1,290 kWh/kW-year state planning benchmark from the existing PVWatts-based CalcuRiver dataset.
Installed cost
$3.05/W planning benchmark for New York.
Electricity value ceiling
29.90¢/kWh · EIA residential benchmark for New York (2026-07).
PSEG Long Island rate context
12.91¢/kWh · September super off-peak. This is utility rate-plan context, not a verified solar export-compensation rate.
Utility source: PSEG Long Island official Time-of-Day and monthly supply rates · verified 2026-09-28.
Production: NREL PVWatts methodology · Cost: 2026 state / local marketplace benchmark.
Solar export source: PSEG Long Island Time-of-Day Net Meter Bank Exchange · PSEG Long Island electric rate information · verified 2026-10-03.
Why exact PSEG Long Island solar savings still require customer-specific billing inputs
Exact savings require the customer’s PSEG Long Island rate code plus time-of-day generation and load. A single annual export rate would flatten the published bank structure.
Continue this New York cost analysis
Why this solar estimate changes
Solar value is driven by local production, installed cost, the retail value of electricity you avoid buying, and the compensation you receive for exported energy. CalcuRiver does not assume export credits equal the retail rate unless that utility program is explicitly verified.
Core logic: self-used solar offsets retail purchases; exported solar is valued only under a verified export-compensation rule.
Methodology & source policyConnect solar to the rest of the utility bill
Solar economics are easier to interpret when the tariff, storage and vehicle loads are connected to the same local context.