Solar Battery Storage Calculator for California
See whether adding battery storage to your solar system makes financial sense in California. With partial (avoided-cost) credit net metering and average electricity rates of 32¢/kWh, here is how battery storage stacks up.
Net Metering
Partial (Avoided-Cost) Credit
Electricity Rate
32¢/kWh
Avg Sun Hours
5.8h/day
Avg Monthly Bill
$250
Battery Storage Calculator for California
Battery Cost
$12,825
before incentives
After 30% ITC
$8,978
net cost
Payback Period
6.7 years
Annual Savings
$1,335
Backup During Outage
10.8 hours
of essential-load backup with a 13.5 kWh battery
25-Year Savings Comparison
Solar Without Battery
$94,902
25-year net savings
Solar + Battery
$136,069
25-year net savings
Net Metering Policy: Partial (avoided-cost) credit. A battery helps you self-consume more solar energy instead of exporting it at a reduced rate, improving your return.
Estimates based on average electricity costs in California. Battery costs reflect current market averages including installation. Actual savings depend on your utility rate structure, usage patterns, and local incentive programs. Consult a solar advisor for a personalized quote.
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