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Solar Cost in Boston, MA

Estimate residential solar cost, annual production and savings in Boston. Adjust system size, installed price, value captured and verified incentives using local and state 2026 planning data.

Federal residential solar credit in 2026: $0. CalcuRiver does not subtract the expired 30% Section 25D credit from this estimate. Add only local or utility incentives you have independently verified.
Planning solar yield1,310 kWh/kW
Installed-cost benchmark$3.00/W
Federal credit assumed0%
Electricity rateloading…
city solar model

Build your Boston scenario

Start with planning benchmarks, then replace them with your actual quote or roof-specific inputs.

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“Value captured” is deliberately editable because self-consumption, export credits and net-metering rules vary by utility. 100% represents a retail-value ceiling, not a guaranteed bill saving.

How this Boston estimate works

  • Annual production = system size × 1,310 kWh/kW planning yield.
  • Retail-value ceiling = annual production × current Massachusetts residential electricity price.
  • The value-capture control lets you haircut that ceiling for self-consumption/export economics.
  • Simple payback = entered net installed cost ÷ modeled annual electricity value.

Source boundaries

1,310 kWh/kW-year planning benchmark derived from a PVWatts-modeled city output table; planning value, not a site-specific roof forecast. Roof orientation, shading, equipment, weather year and utility export compensation can materially change the result.

Production benchmarkCost benchmarkDetailed solar calculator
differentiation status

What is localized in Boston

8 kW production10,480 kWh/yr
Vs. state production+0.0%
8 kW benchmark cost$24,000
Vs. state benchmark cost+0.0%
Simple payback ceiling7.5 yr
Verified utility contextNone verified

No artificial numeric difference. The current Massachusetts state planning benchmark is anchored to the same city-level production/cost input used for Boston, so production, benchmark cost and simple payback currently match. The city page remains source-specific rather than inventing a difference.

Data basis: Direct city source; state benchmark currently matches this city input · production source: PVWatts-based 2026 city benchmark · electricity benchmark: EIA 2026-07 · federal residential credit modeled: 0%.

methodology & sources

Boston solar methodology

Production precision: sourced city/representative-city planning benchmark; not a site-specific roof forecast.

Production basis

1,310 kWh/kW-year planning benchmark. This is a planning input, not a site-specific roof forecast.

Installed-cost basis

3.00 $/W planning benchmark for this city/region; not an installer quote.

Electricity benchmark

30.49¢/kWh Massachusetts residential benchmark for 2026-07.

Utility boundary

The city page does not assume one electric utility. Use an available city × utility page when the service territory is verified.

Methodology: Solar utility model · CalcuRiver methodology.

why this estimate changes

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 policy