Data / State incentives

State incentives

What a buyer can actually claim from a state, read from the statute or programme that grants it.

Records: 10
With their own source: 5
Carrying a caveat: 0
Verified: 2026-09-05

What this decides

Net cost, and the payments that arrive over the years after installation.

DSIRE renders client-side and could not be fetched on 2026-09-05, so each record cites the primary source actually read: the statute, tax department, program administrator or regulator. Where a secondary source had to be used it is named as such. Only statewide incentives available to a typical owner-occupier carry a modelled kind. Income-qualified programs, local utility rebates and tax exemptions are recorded in notes. Performance payments (RECs, SRECs) are recorded as performance_per_kwh in $/kWh. Notes describe what the source says, never what the engine does: behaviour changes, sources do not.

Every record

Record	Programme	Worth	Verified	Source
Arizona	Residential Solar Energy Device Credit (Form 310, A.R.S. 43-1083)	25%, capped at $1,000	2026-09-05	azleg.gov
25% of the cost of the device; maximum $1,000 in a taxable year and $1,000 in aggregate for the same residence; five-year carryforward; the taxpayer's Arizona residence. A.R.S. 43-1083 credits the taxpayer who installs the device; not extended to third-party-owned systems.
California researched, nothing to model	None found	—	2026-09-05	—
No state income-tax credit and no statewide rebate for residential PV. SGIP general-market residential storage funding ran through 2025; the Residential Solar and Storage Equity budget ($280M, reservations from 2025-06-02) is income-qualified. Source: https://www.cpuc.ca.gov/industries-and-topics/electrical-energy/demand-side-management/self-generation-incentive-program (read 2026-09-05). A property-tax exclusion for solar construction exists; it does not change installed cost.
Connecticut researched, nothing to model	None found	—	2026-09-05	—
No upfront statewide rebate or tax credit. Compensation runs through the Residential Renewable Energy Solutions tariffs (Buy-All or Netting, 20-year term), updated for 2026 enrolments in PURA Docket 25-08-02 (decision 2025-12-17), including a per-kWh solar energy adjustment on 2026 netting projects. Those are net-metering terms and belong in netmetering/state.json. Source: https://portal.ct.gov/pura/electric/office-of-technical-and-regulatory-analysis/clean-energy-programs/residential-renewable-energy-solutions-program (read 2026-09-05).
Illinois	Illinois Shines REC contract, Small Distributed Generation 0-10 kW AC	$0.08077/kWh for 15 years	2026-09-05	illinoisshines.com
2026-27 Program Year REC price $80.77/REC in Group B (ComEd territory, including Chicago) and $70.37/REC in Group A (Ameren and others); 1 REC = 1 MWh, so $0.08077/kWh. Contracts run 15 or 20 years; 2026 contracts pay 50% at energization and the rest ratably over six years. A $20/REC adder applies in 2026-27 to customer-owned Small DG that takes no federal credit. RECs belong to the owner of the system, so under a lease or PPA they go to the provider rather than the homeowner. The 2026-27 $20/REC adder is explicitly available only to customer-owned Small DG that takes no federal credit, which is the program itself distinguishing the two cases.
Maryland researched, nothing to model	None found	—	2026-09-05	—
The Residential Clean Energy Rebate Program ($1,000 for solar PV) is closed; applications had to be submitted before 2024-11-30 (secondary source: https://www.energysage.com/local-data/solar-rebates-incentives/md/, updated 2026-01-06; MEA program pages returned server errors on 2026-09-05). Its successor, the Maryland Solar Access Program (https://energy.maryland.gov/residential/Pages/incentives/Maryland-Solar-Access-Program.aspx; FY27 window 2026-07-29 to 2027-05-31), is limited to moderate-income households (e.g. up to $136,785 gross income for one person) and pays $750/kW up to $7,500 per the EnergySage page; the MEA page does not state the amount. It is income-qualified, not a general incentive.
Massachusetts	Residential Renewable Energy Income Tax Credit (Schedule EC)	15%, capped at $1,000	2026-09-05	mass.gov
15% of net expenditure or $1,000, whichever is less (M.G.L. c. 62 s. 6(d)); net expenditure excludes federal credits and HUD grants; principal residence; three-year carryover. Also stated at https://budget.digital.mass.gov/govbudget/fy23/tax-expenditure-budget/personal-income-tax/credits-against-tax/1-601. The regulation credits the taxpayer's own net expenditure on renewable energy source property; it does not extend to third-party-owned systems.
New Jersey	SuSI Administratively Determined Incentive (SREC-II), residential net-metered	$0.077/kWh for 15 years	2026-09-05	nj.gov
Board order of 2026-05-21 (Dockets QO20020184 and QO26030096) directs $77/MWh, down from $85/MWh, for all registrations received on or after 2026-07-27; 15-year term fixed at registration. SREC-IIs are paid to the owner of the facility; under a lease or PPA that is the provider, whose pricing reflects them. The Board orders describe the payment mechanism but do not address third-party ownership directly, so the record keeps the default: the buyer only. Crediting a lease customer without a source would overstate their return.
New York reaches lease customers	Solar Energy System Equipment Credit (Form IT-255)	25%, capped at $5,000	2026-09-05	tax.ny.gov
25% of qualified expenditure, limited to $5,000; principal residence in NY; purchase, lease, or a 10-year-plus PPA all qualify; unused credit carries forward five years. The source lists purchase, a written lease, and a PPA of ten years or more as qualifying; for leases the credit accrues on payments made each year, up to the same $5,000 cap.
Pennsylvania researched, nothing to model	None found	—	2026-09-05	—
No statewide residential rebate and no state income-tax credit (secondary source: https://palmetto.com/policy/pennsylvania-solar-incentive-tax-credit-rebate-guide, last edited 2026-03-18). Pennsylvania SRECs trade at market prices; there is no fixed value to record. Philadelphia runs a city-only rebate.
Texas researched, nothing to model	None found	—	2026-09-05	—
Texas has no state income tax, hence no state tax credit, and no statewide rebate. Tax Code s. 11.27 exempts from property tax the appraised value added by a solar device for on-site use (https://texas.public.law/statutes/tex._tax_code_section_11.27); that does not change installed cost. Utility and retail-provider buyback plans and rebates vary locally.

Source column links the page or endpoint the value was read from. Where a row has no link of its own, it inherits the file-level source.

The tax department, statute or programme document that grants each one.

Take it

state-incentives.json
The file the engine actually reads, unaltered, with the documentation blocks it carries.
state-incentives.csv
The 10 records flattened for a spreadsheet: value, verified date, source, caveats, note.

Our compilation is free to reuse with a link back. The underlying data is not ours to license — follow the source on any row for the authoritative version and its own terms. The full position.

The rest of the data

Electricity prices
What a residential kilowatt-hour costs, by state. The single biggest driver of whether solar pays.
Solar yield
How much electricity a kilowatt of panels makes in a year, by place. The only pure physics on the site.
Installed cost
What a system costs installed, on both published bases: competitive quotes, and what buyers actually paid.
Export rules
What the utility pays for a kilowatt-hour you send out. Decides payback more than sunshine does.
Federal policy
The federal credit as data, versioned by year, with the dated events that changed it.
Modelling assumptions
Everything the model assumes rather than sources: panel wattage, degradation, loan terms, escalation.

Published 6 September 2026. Last verified 5 September 2026. A figure here that looks wrong is the mail we most want: tell us, and we publish corrections. The formulas that consume these records are on the methodology page.