Utility & energy calculators
Use these tools to see if solar pays off, compare cities, or see how much it costs to run appliances. Many can use rates from cities we cover. Browse cities by state to find your area.
Calculators
Solar & storage
Solar + battery payback
Enter your average electric bill and kWh used per month to estimate system size, installation cost, and how long until you break even.
Open Solar + battery payback →MovingCompare two cities
Side-by-side estimated utility costs for two cities. Useful when moving or comparing areas.
Open Compare two cities →Bills & usageAppliance running cost
See how much it costs to run an appliance (watts and hours) at your chosen electric rate or your city's rate.
Open Appliance running cost →More tools may be added over time. Assumptions and disclaimers are on each calculator page.