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
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
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
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.
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.
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.
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
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.
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.
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.
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.
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