Your cooling load is the best use of your production
Since April 15, 2023, customers applying for interconnection have taken service on the net billing tariff pursuant to CPUC decision D.22-12-056, and are paid for exported electricity based on its value to the grid, determined by the Avoided Cost Calculator.
Midday solar is abundant and therefore worth relatively little as an export. Electricity you consume as it is generated avoids a purchase at the retail rate instead, which is generally worth considerably more. That gap is where the value of a Fresno system sits.
Air conditioning running hard through the afternoon means a large share of production is consumed on site rather than exported, which is a genuinely favourable position under this tariff. Ask your installer to model that self-consumed share explicitly rather than quoting an annual offset percentage.
Small habits raise it further at no cost. Pre-cooling the house in the early afternoon while production is strong, and running laundry and dishwashing in daylight, shifts consumption into the production window without buying anything.
Heat cuts output, so check the estimate
Panel efficiency falls as cell temperature rises. In the Central Valley that is not a marginal effect, and it bites hardest in exactly the months you most need the production.
Ask what temperature assumptions sit behind your production estimate and whether the model was run for your specific location and roof rather than a regional average. Ask to see monthly figures rather than an annual total, since the annual number hides the shape.
Ask about mounting as well. Airflow beneath the modules affects operating temperature, so how the array is mounted has a real effect on hot-weather output, particularly on a low-slope or tightly flush installation.
None of this argues against solar in Fresno, where the sun resource is excellent. It argues for an estimate that reflects the climate honestly, so that what you compare between installers is engineering rather than optimism.
The evening gap, and whether storage closes it
The awkward part of a hot-climate load is that household demand often peaks as production is fading. Late afternoon and evening are when cooling is still running hard and the array is winding down, and under this tariff that is also when electricity is most expensive.
A battery holds midday production for those hours, converting a low-value export into an avoided high-value purchase. That is the financial mechanism, and it is worth asking for as arithmetic rather than as a recommendation.
Ask how many kilowatt hours per year would move through the battery, what the value difference is between exporting them and using them later, what the storage costs, and over what period the difference repays it.
Also ask whether you qualify for help. California's Self-Generation Incentive Program pays $850 per kilowatt hour under its Equity category and $1,000 per kilowatt-hour under Equity Resiliency, aimed at lower-income, medically vulnerable and at-risk for fire communities.
What changed federally, and the battery incentive that remains
The 30 percent federal Residential Clean Energy Credit under Section 25D expired for property placed in service after December 31, 2025. A cash or loan purchase made now receives no federal credit, and a quote that still applies it is overstating your return substantially. Check any projection line by line rather than trusting a summary figure.
Section 48E survives at 30 percent and is available to third-party owners of residential systems under leases and power purchase agreements. The credit still exists, it simply no longer flows to a homeowner who buys the system. Expect lease providers to lead with that, and ask what they claim and what of that value actually reaches you in the rate offered, then confirm with a tax advisor.
California's Self-Generation Incentive Program continues to provide incentives for battery storage installed on the customer's side of the meter, including systems that can function during a power outage. Its Equity and Equity Resiliency categories are aimed at lower-income, medically vulnerable and at-risk for fire communities.
Depending on the category a customer qualifies for, the incentive is $850 per kilowatt hour under Equity or $1,000 per kilowatt-hour under Equity Resiliency. Applicants have one year after reserving funds to meet programme requirements, which include enrollment in a qualified Demand Response program, and further criteria are in the SGIP Handbook. Ask whether you might qualify and confirm with the programme rather than treating a sales answer as final.