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Last reviewed September 28, 2026

Solar rules change. Here is every change that moves your money.

Tax credits, export rates, rebates and new protections, dated and sourced. Deadlines come first, so you can act before a rule changes, not after.

Coming up

  1. December 31, 2026
    North CarolinaExport rules

    Duke Energy’s legacy net-metering rider ends in North Carolina

    Duke customers still on the old Rider NM move to the Net Metering Bridge rider. New customers already choose the Bridge or a time-of-use rider, with exports credited at avoided cost.

    Who
    Existing Duke Energy Carolinas and Progress solar customers on Rider NM
    Source: NC Public Staff ↗
  2. December 31, 2027
    CaliforniaExport rules

    Last year for California’s “ACC Plus” export bonus

    PG&E and SCE residential customers who submit an interconnection application before the end of 2027 get a small adder on export credits for their first years. SDG&E customers are excluded.

    Who
    New PG&E and SCE solar customers
    Money
    Worth applying in 2027 rather than 2028 if you are going ahead anyway
    Source: CPUC Net Billing Tariff ↗
  3. December 31, 2027
    FederalTax credits

    In-service deadline for the lease/PPA solar credit

    Solar companies can still claim a federal business credit on leased and PPA systems if construction began by July 4, 2026, or the system is in service by the end of 2027. Some of that value shows up in lower lease and PPA prices.

    Who
    Anyone comparing a lease or PPA with buying
    Money
    Leases and PPAs may get pricier after 2027
    Source: IRS FAQs ↗
  4. April 2028
    IdahoExport rules

    Idaho Power’s export credit rates are held until its next filing

    Exports earn 15.68¢ on summer on-peak hours, 3.39¢ summer off-peak and 2.90¢ the rest of the year until Idaho Power’s next filing.

    Who
    Idaho Power solar customers
    Money
    West-facing panels and batteries are worth more here
    Source: Idaho Power ↗

Already in effect

CaliforniaExport rules

California adopts updated export values for new solar customers

The CPUC adopted an updated Avoided Cost Calculator, which sets export credits for new applications. Customers already on a locked vintage (such as NBT26) keep their schedule.

Who
New California solar customers
Source: CPUC ↗
ArizonaExport rules

APS export rate falls 10% to about 5.6¢ per kWh

Arizona Public Service credits exports at its Resource Comparison Proxy rate, reported at 5.554¢/kWh for September 2026 to August 2027. Locked for ten years from your application.

Who
New APS solar customers
Money
Using more of your own solar (or a battery) matters more than ever

Confirm the rate on APS’s current tariff before you sign.

Source: Net Metering by State ↗
FederalPrices

National data: solar prices fell to a median $3.60 per watt

Lawrence Berkeley National Laboratory’s latest data shows cash buyers paid a median $3.00 per watt and loan buyers $4.50: the gap is mostly dealer fees.

Who
Everyone getting quotes
Money
On a 7 kW system, $3.00 vs $4.50 a watt is $10,500
Source: LBNL Tracking the Sun ↗
FederalTax credits

Construction-start deadline passed for the lease/PPA credit

Leased and PPA systems that began construction by this date keep the business credit however long they take. Later projects must be in service by the end of 2027.

Who
Anyone offered a lease or PPA
Source: IRS FAQs ↗
FederalTax credits

The 30% homeowner solar tax credit is gone

Systems homeowners buy and install from now on get no federal credit. A quote that still subtracts 30% is wrong.

Who
Everyone buying solar with cash or a loan
Money
On a $21,000 system, that is $6,300 you no longer get back
Source: IRS ↗
CaliforniaConsumer protection

California sellers must hand you a standard savings and financing disclosure

Solar contracts now come with a standard “Supporting Information” form that shows the financing and the bill-savings assumptions in one layout, so quotes are easier to compare.

Who
California buyers
Source: California CSLB ↗
MassachusettsPrograms

Massachusetts opens SMART 3.0 solar incentive applications

The state’s solar incentive program restarted under new rules. Ask installers whether your system qualifies and what the payment is worth.

Who
Massachusetts solar buyers
Source: Mass.gov ↗
TexasConsumer protection

Texas solar sellers must register and give you a disclosure statement

For contracts signed from this date, residential solar retailers must register with the state and give you a standard disclosure covering total cost, fees, liens and roof removal.

Who
Texas buyers
Source: Texas TDLR ↗
UtahPrograms

Utah allows small plug-in “balcony” solar without utility approval

Small plug-in panels no longer need a utility interconnection agreement. Local building, landlord and HOA rules still apply, and plug-in panels don’t give you backup power.

Who
Utah renters and apartment owners
Source: Utah HB 340 ↗
IllinoisExport rules

Illinois ends full retail net metering for new systems

New systems only offset the supply part of the bill for exported power. A distributed-generation rebate of $300 per kW (and $300 per kWh of storage) helps balance it.

Who
New Illinois solar customers
Money
A 7 kW system gets about $2,100 back from the rebate
Source: Illinois law (220 ILCS 5/16-107.6) ↗

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