Tools for the energy transition

Electrify everything at home.
See what it really costs.

Free calculators for panel upgrades, rate plans, solar, rebates, and home electrification sequencing — built for homeowners and renters before they call a contractor.

Free · No signup required · Built from utility rates, incentives, and real electrification constraints

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A clearer path before you call a contractor

Before you write that check

Before approving a $5,000–$15,000 panel upgrade, check whether cheaper options like load sharing, tandem breakers, smart load management, or a subpanel may work.

Check my panel first

Real tools for real electrification decisions

Built for homeowners and renters nationwide. Real utility rates. Real incentive programs. Real savings.

The biggest barrier to electrification isn't the technology. It's the information gap. We're building free calculators that close it, starting with solar. Real data, real math, available nationwide.

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Rebate & Incentive Stacker

Stack every available incentive program: utility rebates, state tax credits, federal programs, and local incentives. See your actual net cost for a heat pump or heat pump water heater after everything is applied.

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Heat Pump vs. Gas Operating Cost

Compare monthly and 10-year operating costs using your actual utility rates. See the breakeven point and how rate changes affect the math over time.

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Solar + Heat Pump Calculator

See how much of your heat pump's electricity your solar panels would offset. Uses local solar production data and your estimated heat pump consumption.

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HPWH Savings Calculator

Compare the operating cost of a heat pump water heater vs. your current gas or electric tank. Factor in your local rates, household size, and usage patterns.

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EV Charger Selector

Find the right home EV charger for your vehicle, electrical panel, and budget. Compare Level 1 vs. Level 2, see install cost estimates, and check which chargers qualify for rebates in your area.

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Electric Power Tool Selector

Ditch the gas-powered yard tools. Compare electric mowers, leaf blowers, chainsaws, and trimmers by battery life, power, and cost. See which models match your yard size and workload.

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Heat Pump OEM Selector

Compare heat pump brands and models side by side. Filter by climate zone, home size, SEER2/HSPF2 ratings, noise level, and price. See which manufacturers have the best warranty and installer networks near you.

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Request a Tool

Have an idea for an electrification calculator we should build? Tell us what you need.

Read the thinking behind the tools

The constraints that drove these calculators — sequencing, panel-upgrade myths, the workforce gap, and lessons from leading AI in cleantech.

Get notified when new tools launch

No spam. Just a quick email when a new calculator goes live or incentive programs change.

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Real data sources
NREL PVWatts, EIA electricity rates, NAHB appliance lifespans, IRA rebate provisions. Every number is cited.
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Built by an operator
Josh Lake — MIT '07, 15+ years in clean energy from solar to EVs to heat pumps.
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No data collected
All calculations run in your browser. No login, no tracking, no selling your info. Just answers.