Battery Backup Electricity Cost by State
Battery backup systems store electricity that can be used during power outages. This section explains how much electricity costs to recharge home battery systems using grid electricity—relevant to home battery backup, solar + battery systems, and replacing fossil fuel generators.
Why Electricity Price Matters
Batteries must be recharged using electricity, either from the grid or solar. When charging from the grid, higher electricity prices increase the cost of recharging. State electricity price context helps illustrate how recharge costs vary by location.
Grid Electricity and Battery Charging
Higher electricity prices increase the cost of charging batteries from the grid. The formula is simple: recharge cost = battery capacity (kWh) × electricity price per kWh. Our state pages show illustrative recharge costs using state average residential rates.
Example Battery Sizes
Common home battery sizes used for estimates:
- 10 kWh battery — smaller backup capacity
- 13.5 kWh battery — typical home battery size (e.g. Tesla Powerwall)
- 20 kWh battery — larger backup capacity
At different state electricity rates, these capacities translate to different recharge costs. Our state pages show illustrative examples.
Explore by State
Grid electricity cost for charging battery backup systems by state:
Related Pages
- Explore solar savings potential by state — Learn about solar savings potential
- Solar vs Grid Electricity Cost — Grid electricity price context for solar
- Electricity Cost by State — State-level rates and estimated costs
- Electricity Cost of Living — How electricity affects household budgets
- Electricity Data — Datasets and methodology
- Datasets — Download electricity price data