Solar Battery Storage Calculator for Delaware
See whether adding battery storage to your solar system makes financial sense in Delaware. With full retail credit net metering and average electricity rates of 16¢/kWh, here is how battery storage stacks up.
Net Metering
Full Retail Credit
Electricity Rate
16¢/kWh
Avg Sun Hours
4.4h/day
Avg Monthly Bill
$140
Battery Storage Calculator for Delaware
Battery Cost
$12,825
before incentives
After 30% ITC
$8,978
net cost
Payback Period
23.7 years
Annual Savings
$378
Backup During Outage
10.8 hours
of essential-load backup with a 13.5 kWh battery
25-Year Savings Comparison
Solar Without Battery
$45,180
25-year net savings
Solar + Battery
$50,414
25-year net savings
Net Metering Policy: Full retail credit. Battery storage adds backup power but may not significantly increase financial savings since excess solar is already credited at full retail rate.
Estimates based on average electricity costs in Delaware. 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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