Solar in Daly City, CA: 2026 Cost, Savings & Payback
Calculate 2026 solar panel cost, payback, and 25-year bill savings in Daly City, California. Based on 6.6 peak sun hours/day, 31.2¢/kWh average electricity rate, Pacific Gas & Electric utility context, and current IRS guidance for the ended federal residential clean energy credit.
Solar in Daly City, CA: quick answer
A typical 6kW solar system in Daly City costs about $17,820 before local or state incentives. For 2026 installs, the federal residential clean energy credit is modeled as $0, so the estimated cost remains about $17,820 before any local incentive. It produces about 11,563 kWh per year from 6.6 peak sun hours/day, saves about $3,611 per year, and reaches payback in about 4.9 years.
2026 6kW Cost
$17,820
Monthly Savings
$301
Production / kW
1,927 kWh
Panel Count
~15
6.6
Peak Sun Hours/Day
31.2¢
Avg Rate (¢/kWh)
4.9 yr
Payback Period
$63k
25-Year Savings
Daly City Solar Overview
Calculate Your Daly City Solar Savings
Daly City average: $167/mo
South-facing roofs produce the most energy
Add $8,000-$12,000 for whole-home battery backup
Annual Production
kWh/year
Annual Savings
per year
Net System Cost
after 2026 federal credit
Payback Period
break-even time
Bill Offset and Export Assumptions
Current Annual Bill
$2,004
Estimated Usage
6,417 kWh
Bill Offset
92%
Used On Site
55%
Exported production is discounted in this planning model instead of being treated as a guaranteed one-for-one bill credit. For Daly City, verify the current Pacific Gas & Electric export-credit method and any fixed monthly charges before relying on the payback number.
25-Year Total Savings
$62,987
Monthly Savings
$154
2026 Federal Credit
$0
Cumulative Savings vs System Cost
Cost Breakdown
| Item | Daly City | National Avg |
|---|---|---|
| Gross System Cost (6kW) | $17,820 | $17,100 |
| 2026 Federal Residential Credit | -$0 | $0 |
| Net System Cost | $17,820 | $17,100 |
| Cost Per Watt | $2.97/W | $2.85/W |
Solar Potential in Daly City
Sun Hours vs National Average
Daly City gets 47% more sun than the national average.
Climate Advantages
- 270 sunny days per year
- Average temperature: 71.4°F — moderate climate with good solar conditions
- Average roof size: 2,033 sq ft — enough for a 112-panel system
Daly City Solar Incentives & Programs
Federal Investment Tax Credit (ITC)
For 2026 planning, JouleIO does not subtract a federal residential clean energy credit. The IRS says the Residential Clean Energy Credit was 30% for eligible property installed from 2022 through December 31, 2025, and is not available for property placed in service after December 31, 2025.
Source: IRS Residential Clean Energy Credit and IRS One Big Beautiful Bill provisions.
California State Incentives
California NEM 3.0 net billing; SGIP battery rebates up to $1,000/kWh
Net Metering — Pacific Gas & Electric
Pacific Gas & Electric offers net metering in Daly City. Earn credits for excess solar energy sent to the grid, reducing your electric bill further.
Environmental Impact in Daly City
4.8
Tons CO2 Offset/Year
80
Equivalent Trees Planted
1.1
Homes Worth of Energy
Based on 11,563 kWh annual production with a 6kW system. EPA average: 0.417 metric tons CO2 per MWh, 10,632 kWh per US home.
Solar Energy in Daly City, California
Daly City, California receives an average of 6.6 peak sun hours per day, placing it among the best cities in the country for solar energy production. With electricity rates averaging 31.2¢ per kWh from Pacific Gas & Electric, well above the national average of 18.56¢/kWh, solar panels offer exceptional savings potential.
A typical 6kW solar system in Daly City produces approximately 11,563 kWh per year, saving homeowners an estimated $1,844 annually. The system pays for itself in about 9.7 years, after which you enjoy essentially free electricity for the remaining 15+ years of the system's warranty life.
Daly City has a solar penetration rate of 10.5% — one of the highest adoption rates in the country, reflecting strong community support for solar energy. The cost of living index of 149 (national average: 100) means higher electricity costs, which amplifies solar savings.
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Methodology & Solar Data Sources for Daly City
How we calculate Daly City solar potential and savings: Solar production estimates use NREL's PVWatts calculator methodology, applied to Daly City's specific solar irradiance (peak sun hours), tilt angle, and azimuth. Cost figures combine NREL's Annual Technology Baseline for system pricing, ENERGY STAR's database for residential PV averages, and EIA Form 861 utility rate data for California.
- Solar irradiance for Daly City: based on NREL National Solar Radiation Database (NSRDB) — 30-year average peak sun hours per day.
- System sizing assumes residential rooftop installation with standard 350-400W panels, calibrated to typical Daly City household electricity usage.
- Federal tax credit: modeled as 0% for 2026 residential installations because IRS guidance says the Residential Clean Energy Credit is not available for property placed in service after December 31, 2025.
- Net metering assumes 1:1 retail-rate compensation typical in California (verify with local utility — some have shifted to net billing or avoided-cost rates).
- System lifetime standard 25 years with annual degradation of 0.5%/year per industry warranty norms.
Authoritative US solar data sources:
- NREL PVWatts Calculator — official US solar production estimator
- NREL National Solar Radiation Database — 30-year solar irradiance data
- IRS Residential Clean Energy Credit — 2026 federal residential credit status
- IRS One Big Beautiful Bill provisions — clean energy credit expiration overview
- DSIRE — State Solar Incentives — searchable database for California
- EIA Electric Power Monthly — California utility rate data
- ENERGY STAR Solar — efficient solar product database
Solar Disclaimer: Solar savings vary based on roof orientation, shading, system quality, installer markup, financing terms, utility rate plan, and policy changes. Always get 3+ quotes from NABCEP-certified installers and review contracts carefully. Tax credit eligibility depends on tax liability — consult a tax professional.
Reviewed by Brazora Monk · Last updated 2026 · NREL irradiance data per NSRDB latest release
Frequently Asked Questions
How much do solar panels cost in Daly City, CA?
The average cost of a 6kW solar panel system in Daly City is approximately $17,820 before local or state incentives ($2.97/watt). For 2026 planning, this calculator does not subtract a federal residential clean energy credit because IRS guidance says the credit is not available for property placed in service after December 31, 2025. California NEM 3.0 net billing; SGIP battery rebates up to $1,000/kWh
How many solar panels do I need in Daly City, CA?
A typical 6kW residential solar system in Daly City needs about 15 panels if each panel is rated near 400 watts. That system produces about 11,563 kWh per year in this estimate, or roughly 1,927 kWh per installed kW before shading, roof orientation, and inverter losses are customized.
How many peak sun hours does Daly City get?
Daly City, CA receives an average of 6.6 peak sun hours per day and approximately 270 sunny days per year. This is above the national average of 4.5 hours, making it an excellent location for solar energy.
What is the solar payback period in Daly City?
The average solar payback period in Daly City is approximately 4.9 years for a 6kW cash-price estimate before local or state incentives. After payback, your solar panels generate essentially free electricity for the remaining warranty life. Over 25 years, bill savings can reach about $123,344 before subtracting installation cost.
Does Daly City have net metering?
Yes, Daly City has access to net metering through Pacific Gas & Electric. This allows you to earn credits for excess solar energy sent to the grid, but the final savings depend on the current utility tariff and fixed monthly charges.
Is solar worth it in Daly City, CA in 2026?
Yes. With a 4.9-year estimated payback and about $123,344 in 25-year bill savings before installation cost, solar can be an attractive investment in Daly City. For 2026 installs, JouleIO does not assume a federal residential credit; above-average electricity rates are the main financial drivers.