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#1 Solar ROI State

Solar Panel ROI in California (CA)

California averages 1,600 kWh per installed kW per year. At $28.2¢/kWh average utility rates, a 7 kW system produces a 25-year NPV of $41,579.

$13,573
System Cost (After Credits)
$41,579
25-Year NPV
5 years
Payback Period
$0.125/kWh
Solar LCOE

Solar Cost Breakdown in California

7 kW system (2.77/W)$19,390
Federal ITC (30%)-$5,817
Net Cost$13,573

Solar Production in California

California receives an average of 1,600 kWh of solar energy per installed kW per year, based on NREL PVWatts data for a south-facing system at 20° tilt. A 7 kW system produces approximately 11,200 kWh in year one, declining by 0.5% annually due to panel degradation.

At California's average residential rate of $28.2¢/kWh with 4% annual escalation, first-year savings are $3,158. The solar LCOE of $0.125/kWh is 56% below the current utility rate and stays fixed while utility rates continue to climb.

Net Metering in California

NEM 3.0 — export at avoided cost ($0.04-0.08/kWh), strong TOU incentive for battery pairing

Solar by Utility in California

San Diego Gas & Electric (SDG&E)

Avg Rate: $38.0¢/kWh
Structure: TOU
Peak: $58.0¢/kWh / Off-Peak: $14.0¢/kWh
View analysis ›

Pacific Gas & Electric (PG&E)

Avg Rate: $32.0¢/kWh
Structure: TOU
Peak: $45.0¢/kWh / Off-Peak: $12.0¢/kWh
View analysis ›

Southern California Edison (SCE)

Avg Rate: $28.0¢/kWh
Structure: TOU
Peak: $42.0¢/kWh / Off-Peak: $11.0¢/kWh
View analysis ›

Solar FAQ for California

How much does solar cost in California?
A typical 7 kW residential solar system in California costs $19,390 before incentives. After the 30% federal ITC, the net cost drops to $13,573.
What is the solar payback period in California?
Based on the average CA utility rate of $28.2¢/kWh and local solar irradiance of 1,600 kWh/kW/year, a 7 kW system typically pays for itself in 5 years. The 25-year NPV is $41,579.
Does California have net metering?
NEM 3.0 — export at avoided cost ($0.04-0.08/kWh), strong TOU incentive for battery pairing
What is the LCOE of solar in California?
The levelized cost of solar energy in California is approximately $0.125/kWh, compared to the current average utility rate of $28.2¢/kWh. Solar electricity costs 56% less than grid electricity at today's rates, and the gap widens as utility rates rise.
How much electricity does a solar panel produce in California?
California receives approximately 1,600 kWh of solar energy per installed kW per year. A 7 kW system produces about 11,200 kWh in its first year, enough to offset 107% of the average U.S. household's electricity consumption.

Compare Options in California

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Solar ROI in Similar States

Hawaii

NPV: $68,203 · Payback: 3yr
Rate: $39.8¢/kWh · #2 ranked

New York

NPV: $20,948 · Payback: 6yr
Rate: $22.2¢/kWh · #3 ranked

Massachusetts

NPV: $27,033 · Payback: 6yr
Rate: $28.2¢/kWh · #4 ranked

Arizona

NPV: $14,954 · Payback: 8yr
Rate: $13.2¢/kWh · #5 ranked

Nevada

NPV: $12,806 · Payback: 8yr
Rate: $13.2¢/kWh · #6 ranked

Connecticut

NPV: $24,321 · Payback: 7yr
Rate: $27.2¢/kWh · #7 ranked

Get Your California Solar Analysis

These are averages. Your ROI depends on your specific utility, consumption, roof, and system size. Run a personalized 25-year NPV analysis — free.

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