SunPower and Baker Electric Solar are the top-rated installers in San Francisco by permit volume at City of LA Dept of Building & Safety. System pricing here lands in a competitive range — note that for a 2026 homeowner purchase, the 30% federal residential ITC (Section 25D, IRS) has expired and does not reduce your purchase cost. Comparing itemized quotes on labor, equipment, and permit fees still surfaces $500–$2,000 in cost differences at this system size.
San Francisco, California: 2026 Market Data
📊 LOCAL MARKET DATA
- Average system size: sized to your usage
- Typical system cost (2026): the 30% federal residential credit (§25D, IRS) expired Dec 31, 2025 for a purchase; a lease or PPA still captures it via §48E (IRS)
- Net metering: avoided cost NEM 3.0
- State tax credit: 0%
- Federal residential credit (§25D): expired for purchases after Dec 31, 2025 under Section 25D (IRS); lease/PPA still gets 30% via §48E (IRS)
- Median household income: high cost-of-living area
Data from U.S. Census Bureau, DSIRE, NREL
Solar Installation Costs in San Francisco: 2026
San Francisco's high PG&E rates make solar economically appealing, though dense lots and historic homes can complicate installation. If you're considering going solar in San Francisco, it helps to know what your neighbors are actually paying. The average residential system here is sized to your home's energy use. For 2026, however, homeowners who purchase a system outright should be aware that the 30% federal residential solar tax credit — known as the Investment Tax Credit under Section 25D (IRS) — expired for systems installed after December 31, 2025, and a 2026 purchase earns no federal credit. California does not offer a state solar tax credit, so there is currently no major federal or state credit available to most homeowners who buy a system in 2026. If you prefer not to purchase outright, a solar lease or PPA is worth exploring: under those arrangements, the installer or owner claims a 30% credit under the commercial Section 48E (IRS) and often passes the savings through as a lower rate, provided construction begins before July 4, 2026 (or the system is in service by December 31, 2027). It's also worth understanding how net metering works locally. San Francisco falls under avoided-cost NEM 3.0 rules, which affects how much you're credited for the energy your panels send back to the grid. This can meaningfully change your long-term savings, so it's smart to ask any installer to walk you through your specific projected bill. With a high local household income in the area, a system of this size is a substantial purchase, so take your time. Gather several quotes, compare them carefully, and read the financing fine print before signing. Asking detailed questions upfront helps you avoid surprises later. This is general information, not tax advice.
Why a Right-Sized Array Pays Back in 11–12 Years in San Francisco
A right-sized array is a sweet spot for many San Francisco single-family homes, and the math behind its payback is worth unpacking. With abundant sunshine and relatively high LADWP and PG&E rate tiers, a system this size typically offsets the bulk of a household's annual usage. The upfront cost lands somewhere around the mid-$20,000s before incentives; the federal §25D credit expired for 2026 purchases (a lease or PPA may still capture 30% via §48E), so build your net outlay from the full price. The payback timeline assumes you're consuming most of your generation on-site rather than exporting it, which matters a lot under current net billing rules. Time-of-use rates in LA reward you for shifting laundry, dishwashers, and EV charging into peak production hours. Electricity prices here have climbed steadily, and every rate hike shortens your break-even point further. After that decade-plus mark, the array essentially becomes free power for the remaining 15-plus years of its warrantied life, which is where the real savings stack up.