Storage ROI Calculator
Estimate payback, lifetime savings, and return on investment using system cost, incentives, utility rates, and maintenance assumptions.
Open calculatorRun focused battery planning calculations with clear assumptions, safe input validation, and shareable results.
Estimate payback, lifetime savings, and return on investment using system cost, incentives, utility rates, and maintenance assumptions.
Open calculatorEstimate battery storage capacity for critical loads, backup runtime, reserve margin, and usable depth of discharge.
Open calculatorEstimate solar system size, panel count, and roof area needs from monthly usage, sun hours, panel wattage, and losses to inform solar-battery pairing decisions.
Open calculatorEstimate monthly, daily, and annual electricity demand from utility bills and major household load categories.
Open calculatorUse the tools in the same order a solid battery planning decision should be built: understand your consumption first, size the battery next, model the economics, and add solar sizing only if you are considering paired solar.
Build a realistic monthly and daily kWh baseline from your utility bill and major home loads to right-size your battery.
Start hereTurn that usage baseline into a battery capacity estimate based on critical loads, backup runtime, and reserve assumptions.
Then size your batteryModel net battery cost, incentives, utility savings, payback period, and long-term return on your storage investment.
Then model paybackIf you have or are considering solar, estimate panel count and system size to understand solar-battery pairing options.
Explore solar pairingThese answers explain how to use calculator results as a planning baseline before comparing battery brands and quotes.
Start with the energy consumption calculator if you are unsure how much electricity your home uses. That gives you a cleaner monthly and daily kWh baseline before you size battery storage, estimate costs, or model payback.
A battery planning calculator provides a sizing estimate based on your inputs. It is useful for comparing storage scenarios before quotes, but installer proposals can change after a site survey, utility review, and equipment selection.
Battery capacity depends on your critical load in kilowatts, desired backup runtime, depth of discharge, inverter efficiency, and reserve margin. The battery sizer connects those assumptions so you can see why one home may need more capacity than another.
Use the battery sizer to estimate storage capacity from critical loads and runtime goals. Use the ROI calculator to model installed cost, incentives, and long-term savings. Use the energy consumption calculator first if you are unsure of your actual usage.
Standalone home batteries now qualify for the 30% federal Investment Tax Credit (ITC) under the Inflation Reduction Act, regardless of whether they are paired with solar panels. State and utility incentives may also apply.
Runtime depends on battery capacity, critical load size, depth of discharge, and inverter efficiency. A 10 kWh battery powering 1.5 kW of critical loads with 90% DoD provides approximately 6 hours of backup. Use the battery sizer or check manufacturer runtime charts for specific models.