Battery Backup Electricity Cost in Delaware
State Electricity Price Context
The average residential electricity rate in Delaware is 17.18 ¢/kWh. This provides baseline context for the cost of recharging batteries from the grid.
Battery Recharge Cost Examples
Using state average rate. Recharge cost = capacity × rate. Not including battery purchase cost.
10 kWh battery recharge: about $1.72
13.5 kWh battery recharge: about $2.32
20 kWh battery recharge: about $3.44
National Comparison
The national average rate is 17.57¢/kWh. At that rate, a 10 kWh recharge would cost about $1.76, 13.5 kWh about $2.37, and 20 kWh about $3.51. Delaware's rate is lower than the national average.
Backup Power Context
Batteries may be used for backup power during outages, time-of-use optimization, or solar energy storage. When charging from the grid, the cost depends on local electricity rates. This page provides recharge cost estimates only—not battery purchase cost, solar production, or full system economics.
Transparency
This page estimates recharge cost only. Battery purchase cost is not included. Solar production is not modeled. Actual costs depend on usage patterns, round-trip efficiency, and many other factors.
Related Pages
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