How does the EV Charging Cost & Solar Sizing Calculator calculate financial return and payback?

The solver models gross capital expenditure (CapEx), Section 48 Investment Tax Credits (ITC 30%–50%), 5-year MACRS accelerated depreciation, utility demand charge shaving, and levelized cost of energy (LCOE).

Does this calculator account for battery degradation over time?

Yes, it models standardized degradation curves (typically 1.5% to 2.2% annually for LiFePO4 cells) and accounts for battery pack augmentation cycles across a 20-to-25 year lifecycle.

What federal tax credits apply under the Inflation Reduction Act?

Under Section 48 and Section 45Y, qualifying clean energy and battery storage installations unlock a 30% base ITC, plus potential 10% domestic content and 10% energy community bonus adders.

Zero-Emission Transport & Rooftop Solar Matcher

EV Charging & Solar Sizing Calculator

Find out exactly how much money you save switching from gasoline to electric, and size the exact number of solar panels needed to fuel your commute 100% free.

Driving & Energy Inputs

Annual Mileage Driven (miles/year)

EV Efficiency (miles per kWh) Tesla Model 3/Y: 3.5 - 4.0 | EV Trucks/SUVs: 2.0 - 2.5

Home Electricity Cost ($ / kWh)

Gasoline Price ($ / gallon)

Gas Car MPG (comparison baseline)

Average Daily Peak Sun Hours (PSH)

Free Solar Driving Results

Annual EV Electricity Cost: $656 / yr

Equivalent Gasoline Fuel Cost: $1,759 / yr

Annual Fuel Savings (EV vs Gas): +$1,103 / yr

Solar Dedicated Array Needed: 2.8 kW DC

Number of 400W Solar Panels: 7 Panels

The 100% Free Commute:

Just 7 rooftop solar panels (2.8 kW) will generate all the electricity needed to drive 13,500 miles a year in a Tesla Model 3 or Model Y, eliminating both gasoline and electric utility bills forever.

Webmaster Widget 100% Free & Responsive

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