Daily grid-equivalent energy cost
Estimate the grid-equivalent cost of your daily energy use, to gauge potential savings from an off-grid or backup solar system.
This converts your daily energy use into a grid-equivalent dollar figure using a cost-per-kWh you enter, so you can compare it against an off-grid or backup system's upfront cost — it is a simple multiplication, not a payback-period or financing calculation. For a fuller return estimate that accounts for battery replacement and system life, see the battery payback calculator.
Related calculators
Looking for a definition or a quick answer? See the solar & battery glossary for terms used on this page, or the FAQ for common sizing questions.
Sources & standards
- U.S. EIA — Electricity Use in Homes — Federal reference on typical household electricity consumption by end use.
- U.S. DOE — Shopping for Appliances and Electronics — Department of Energy guidance on weighing upfront cost against long-run operating cost, incl. ENERGY STAR/EnergyGuide labels.
Estimates for planning only. Verify with a meter and follow NEC / local code; have a licensed installer confirm any system before purchase or wiring. See the methodology for formulas and sources.