EV Solar Calculator for Washington

Washington gets 3.5 peak sun hours per day with electricity at 12.5¢/kWh. Calculate how much additional solar capacity you need to charge your electric vehicle at home and take advantage of full net metering.

3.5h/day

Peak Sun Hours

12.5¢/kWh

Electricity Rate

$125

Avg Monthly Bill

Full

Net Metering

Calculate Your EV Solar Needs in Washington

Adjust Your Details for Washington

Annual Miles Driven

5,00030,000

EV Model

Existing Solar System (kW)

0 kW15 kW

Gas Price ($/gallon)

$2.00$7.00

Current Vehicle MPG

15 MPG50 MPG

Your EV Solar Charging Estimate

Daily kWh for EV

8.7 kWh

Additional Solar Needed

2.5 kW

Additional Panels

7 panels

Additional Cost (before ITC)

$7,045

Cost After 30% ITC

$4,932

Annual Gas Savings

$1,105

Payback Period

4.5 years

Combined System

2.5 kW (7 panels)

* Estimates based on 3.5 peak sun hours/day in Washington, 12.5¢/kWh electricity rate, 12,000 annual miles, Tesla Model 3 at 3.8 mi/kWh, 30% federal ITC, and $3.50/gal gas at 28 MPG comparison. Actual results may vary.