Home Energy Project Budget Planner

Combine multiple home-energy projects in one budget. Enter the quotes you actually receive, add a contingency and subtract confirmed incentives or rebates.

🔒 Your project amounts stay in your browser

Solar PV ($)

Battery storage ($)

Heat pump / HVAC ($)

Electrical panel/service ($)

EV charger installation ($)

Water heating ($)

Insulation / windows ($)

Other project cost ($)

Contingency (%)

Confirmed incentives / rebates ($)

Estimated annual energy savings ($/yr)

Estimated annual maintenance change ($/yr)

Positive = extra annual cost; negative = annual maintenance savings.

Why combine projects?

Solar, heat pumps, EV charging and battery storage can interact with the same electrical service, roof or construction schedule. A combined plan helps you see whether one upgrade triggers another and whether project sequencing can avoid duplicated labor.

Do not count incentives until confirmed

Eligibility rules and incentive availability can change. Enter only incentives you have verified for your location and project. WattCostLab does not treat a generic incentive estimate as guaranteed.

Have multiple contractor quotes?

Compare scope, warranty and exclusions before choosing a bid.

Compare quotes