Questions are informed by public homeowner discussions. Answers use the sources below; community stories are context, not verified diagnoses. About the research.
Why do I still have an electric bill after installing solar?
Your house can buy electricity at night or whenever demand exceeds the system’s output. The bill also may include charges that energy exports cannot erase. A proposal showing “100% annual offset” describes an energy total; it does not demonstrate a zero-dollar account balance.
Start with three separate records: electricity imported from the grid, electricity exported, and non-energy charges. Then add your loan or lease payment outside the utility bill. Compare the combined annual cost with a realistic no-solar baseline. A sunny month or a monitoring app’s estimated savings is not enough to establish whether the purchase is working financially.
Sources for the answer: California Public Utilities Commission: Net Energy Metering and Net Billing · Consumer Financial Protection Bureau: Solar financing report (2024; financing practices, not current tax eligibility)
Community context: r/solar discussion (2025-03-21) · r/solarenergy discussion (2025-12-19)
Link to this answerWhy can I owe money at true-up even when my account shows a credit?
A credit displayed in one part of a solar bill may not settle every other charge. Retail-valued energy credits, a cash payment for annual net surplus, delivery charges and amounts collected by a separate generation provider are different accounting items.
Ask the utility to reconcile the opening credit, each adjustment and the final amount due by line item. Include the full twelve-month statement history, not only the app dashboard. If a community choice aggregator supplies your generation, request its settlement statement too. Do not treat a minus sign beside one balance as money available to pay any charge on the account.
Sources for the answer: PG&E: Understanding a solar bill, including the March 2026 charge change
Community context: r/solar discussion (2024-09-20) · r/solar discussion (2025-12-18)
Link to this answerAre delivery charges and fixed charges normal for solar customers?
Some charges remain even when a solar home exports more energy than it imports over a billing period. Their names and calculation depend on the utility, tariff and date. For residential PG&E NEM customers, PG&E says its Base Services Charge replaced the Minimum Electric Charge beginning in March 2026. Older screenshots therefore may describe a different bill structure.
Check the tariff printed on your own statement and separate the fixed amount from charges associated with grid consumption. Ask which items export credits can offset. Comparing your total with a neighbor’s bill without matching these details can make a correct charge look like a metering fault.
Sources for the answer: PG&E: Understanding a solar bill, including the March 2026 charge change
Community context: r/solar discussion (2022-08-04)
Link to this answerWhy is exported solar worth less than electricity I buy later?
Under the Solar Billing Plan used by California’s three large investor-owned electric utilities, imports and exports are priced separately. The export value changes with timing; it is not a promise to credit every exported kilowatt-hour at the retail purchase price.
That makes the daily shape of your usage important. Compare running an existing flexible load during solar hours, storing the surplus, and exporting it. Include battery losses and equipment cost in the storage option. Deliberately wasting electricity to avoid a small export credit does not create savings. The useful comparison is how much a necessary activity costs at different times.
Sources for the answer: California Public Utilities Commission: Net Energy Metering and Net Billing
Community context: r/solar discussion (2025-03-21) · r/solar discussion (2026-05-06)
Link to this answerWill my solar bill be settled monthly or once a year?
The newer net-billing arrangement and older NEM accounts do not necessarily collect energy charges on the same schedule. CPUC describes monthly payments for the Net Billing Tariff, with an annual reconciliation of credits. An older customer describing a large year-end true-up may be on a different arrangement.
Before setting a household budget, obtain a sample bill for your exact tariff. Mark when imports are paid, how export credits carry forward, and what happens to unused credits. Keep a reserve for the expected settlement if your account uses one; a low monthly payment can otherwise hide costs that have already accumulated.
Sources for the answer: California Public Utilities Commission: Net Energy Metering and Net Billing
Community context: r/solarenergy discussion (2025-12-19) · r/solar discussion (2025-03-21)
Link to this answerDoes a community choice aggregator change my solar bill?
A community choice aggregator, or CCA, can provide the generation portion of electricity while the utility continues delivery and metering. The two organizations may show charges and solar credits in different sections, and their reconciliation arrangements need to be checked together.
Use the provider names on the current bill to find the applicable rate documents. Ask both providers about settlement dates and what happens to accumulated credits if you change service. Review the complete annual cost before opting out or switching. A neighbor’s experience with a different CCA, or with utility-supplied generation, does not establish what your own account should cost.
Sources for the answer: PG&E: Understanding a solar bill, including the March 2026 charge change
Community context: r/solar discussion (2025-12-18)
Link to this answerDo NEM 3 rules apply to SMUD, LADWP and every California utility?
No. The CPUC framework discussed here covers PG&E, SCE and SDG&E. A publicly owned utility can have its own solar tariff and transition rules. SMUD, for example, uses its Solar and Storage Rate for qualifying newer connections and for people moving into a solar home under its stated eligibility rules.
Enter the actual electricity provider into any savings model before comparing solar offers. Obtain that provider’s rules for exports, batteries, system changes and a home sale. A claim that “California guarantees NEM 2 transfer” is too broad to rely on when the address is served by a different utility.
Sources for the answer: SMUD: Solar customers and rate eligibility · California Public Utilities Commission: Net Energy Metering and Net Billing
Community context: r/solar discussion (2020-07-01)
Link to this answerCan I add a battery and keep my existing NEM 2 arrangement?
The CPUC’s final net-billing decision allows existing NEM 2 customers to add battery storage without automatically losing their NEM 2 status. That does not mean every redesigned solar-and-storage project qualifies. Adding generation, changing inverters or changing export controls can introduce separate interconnection questions.
Give the installer the original permission-to-operate record and ask for a written equipment schedule identifying everything that will change. Have the utility confirm the applicable application route and the effect on your current tariff before work starts. A battery-only proposal should not quietly turn into a larger solar expansion after you sign.
Can extra panels or a non-export system preserve NEM 2?
Possibly, but the permitted configuration matters more than the sales label. SCE’s published rules allow a limited generating-capacity increase under existing NEM, while still requiring an updated application. A larger addition described as “non-export” needs a design and control arrangement the utility actually accepts.
Request a drawing showing the existing array, new equipment, metering and export limits. Ask for the utility’s written acceptance and any operating restrictions. Do not accept “the utility cannot tell” as a compliance explanation. The question is whether the approved system preserves eligibility, not whether unapproved exports might go unnoticed.