Whole-House Electrification Cost Planner
Current Gas Appliances
Planned Upgrades
Location & Costs
Upgrade Cost Breakdown
| Upgrade | Cost↕ | IRA Credit↕ | Net Cost↕ | Added Watts↕ |
|---|---|---|---|---|
| Heat Pump HVAC (3-ton) | $12,000.00 | $2,000.00 | $10,000.00 | 5,000 |
| Heat Pump Water Heater | $3,500.00 | $840.00 | $2,660.00 | 4,500 |
| Induction Range | $2,500.00 | $840.00 | $1,660.00 | 10,800 |
Going all-electric — swapping a gas furnace, water heater, and stove for heat pumps and induction, and adding an EV charger or solar — is as much a financial and electrical-capacity question as an environmental one. This planner models the added load each upgrade puts on your panel, estimates equipment costs and federal IRA credits, flags whether you need a service upgrade, and projects annual energy savings, a 15-year total cost of ownership, and the CO2 you would avoid.
Formula
Net upfront = Σ equipment + panel upgrade − Σ IRA credits; annual savings = gas eliminated − new electricity cost
- equipment
- Installed cost of each chosen upgrade
- panel upgrade
- Cost added if new load exceeds panel capacity (80 A on a 100 A panel, 180 A on a 200 A panel)
- IRA credits
- Federal incentives: 30% up to $2,000 for heat pump, $840 each for HPWH and induction, 30% of solar
- gas eliminated
- Annual gas cost removed by electrifying, scaled by a climate-zone factor for heating
How it works
- Describe your current setup (which appliances run on gas and whether you have a 100 A or 200 A panel) and check the upgrades you are considering: heat pump HVAC, heat pump water heater, induction range, Level 2 EV charger, and solar.
- Each selected upgrade adds its electrical load (watts and 240 V amps) and equipment cost, with IRA credits applied (30% capped at $2,000 for the heat pump, $840 each for the water heater and induction range, and 30% of solar cost).
- The total added amps are compared against your panel headroom to decide if a service upgrade is needed, and the tool converts eliminated gas therms and new electricity use into annual savings, a 15-year cost comparison, and avoided CO2.
Worked example
A home with a gas furnace and gas water heater on a 200 A panel, climate zone 5, adding heat pump HVAC and a heat pump water heater at $1.80/therm gas and $0.15/kWh.
- Added load ≈ 39.6 A — well under the 180 A allowance on a 200 A panel, so no panel upgrade is needed.
- IRA credits total $2,840 ($2,000 heat pump + $840 water heater), bringing net upfront cost to $12,660.
- Gas eliminated (zone 5 heating factor 1.15: 575 furnace + 200 water therms × $1.80 = $1,395) minus new heat-pump electricity nets a positive annual saving.
No panel upgrade, $2,840 in IRA credits, $12,660 net upfront, about $301/year in energy savings, and roughly 2,359 lbs of CO2 avoided per year.
Frequently asked questions
- Will I need to upgrade my electrical panel?
- It depends on how much new load you add. The planner flags an upgrade when the added amps exceed your panel headroom — 80 A on a 100 A service or 180 A on a 200 A service — and estimates roughly $3,000 to go from 100 A to 200 A.
- Are the IRA tax credits accurate?
- They reflect the headline federal Inflation Reduction Act incentives: a 30% credit up to $2,000 for a qualifying heat pump, $840 each for a heat pump water heater and induction range, and 30% of solar cost. Actual eligibility, income limits, and state or utility rebates vary, so treat these as planning estimates.
- Why can annual savings come out negative?
- If your electricity rate is high relative to gas, or you electrify a fixed-cost gas stove with little usage, the new electricity bill can exceed the gas you eliminate. Heat pumps usually save the most because their efficiency (COP around 3) stretches each kilowatt-hour far further than resistance heat.
- Why does climate zone matter?
- Heating demand drives most home gas use, and colder zones burn more therms. The planner scales the baseline furnace therms by a climate multiplier (from 0.7 in mild zones up to 1.5 in the coldest), which changes both savings and the CO2 you avoid.