Excellent Rate: EIA

Solar Panel Cost & Savings in San Francisco County, CA

A typical 6 kW home solar system in San Francisco County pays back in 4.4 years and saves an estimated $91,710 over 25 years after the federal tax credit.

Solar production
8,580kWh / yr
from a 6 kW system
Sun factor +7% vs. national median
Avg system cost (after 30% ITC) $12,600 $18,000 before credit
Annual savings $2,861 at 33.4¢/kWh
Payback period 4.4yrs Excellent Solar Value
25-year savings $91,710 3%/yr rate escalation

Savings calculator

Tuned to San Francisco County, CA
Your estimate
Excellent
System size4.0kW
Net cost (after ITC)$8,455
Annual savings$1,920
Payback4.4yrs
Est. $61,547 saved over 25 years.
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Is solar worth it in San Francisco County?

San Francisco County sits 7% above the national median for solar production, and homes here pay 33.4¢ per kWh. That combination puts payback at about 4.4 years — a Excellent Solar Value.

Because the 30% federal tax credit applies through 2032, a system installed now is credited $5,400, dropping the net cost to $12,600. Over 25 years, escalating utility rates push estimated savings to $91,710.

30% federal ITC 6 kW reference system $3.00 / watt

Frequently asked

What's the payback period for solar in San Francisco County?

At San Francisco County's electricity rate of 33.4¢/kWh and local sun levels, a typical 6 kW system pays for itself in about 4.4 years after the 30% federal tax credit — a "Excellent" Solar Value rating.

How much does solar cost in San Francisco County after the tax credit?

A 6 kW reference system runs about $18,000 gross. The 30% federal Investment Tax Credit brings the net cost down to roughly $12,600 before any state or local incentives.

Is solar worth it at 33.4¢/kWh?

Yes — higher rates and good sun mean every kWh you generate offsets more, shortening payback and growing 25-year savings. Estimated 25-year savings: $91,710.

Does California have net metering?

Net-metering rules vary by utility and change over time. Many California utilities credit excess generation, which improves these economics. Confirm current terms with a local installer when you compare quotes.

Where does this estimate come from?

Production is modeled from NREL PVWatts v8 for San Francisco County (sun factor +7% vs. the national median), and the electricity rate from EIA state-average. Updated June 2026.

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Estimates for San Francisco County, California are modeled from NREL PVWatts v8 (production) and EIA state-average (rate). Not affiliated with NREL, DOE or EIA · not financial advice · last updated June 2026.