About PlugRates

PlugRates answers three money questions about electric cars: what incentives are left, whether an EV is cheaper to fuel than a gas car, and what home charging costs. Each figure carries its source and the day we read it.

What PlugRates is

It is a reference site built from public data. Electricity prices come from the U.S. Energy Information Administration (EIA), gasoline prices from EIA's weekly survey, vehicle efficiency from the EPA's fueleconomy.gov file, federal credit dates from the IRS, and state programs from the Department of Energy's Alternative Fuels Data Center (AFDC). The pages are federal credits, the state incentives table, an EV vs gas calculator and a home charging cost calculator.

Who runs it

PlugRates is an independent site run by its publisher. There is no staff list and no named author on the pages. It is not affiliated with the IRS, EIA, EPA, the Department of Energy, AFDC or any car maker or utility. Those names appear only to say where a number came from.

How to use the numbers

Every page has a date bar under the header with the data date and the main sources, and the table or chart notes name the exact file or page. All the cost figures use one formula. For a 2026 Tesla Model Y Long Range RWD at the U.S. residential average, it looks like this:

How a cost per 100 miles is computed

Cost per 100 miles25.2 kilowatt hours per 100 miles times 18.16 cents per kilowatt hour, divided by 100, equals $4.58 per 100 miles.25.2kWh/100 mix18.16cents/kWh/100=$4.58$/100 mi
Source: EPA fueleconomy.gov record 49743 and EIA Table 5.6.A, August 2026. Read Nov 8, 2026.

State averages, as in the state-by-state guide, are not your bill. If you know your own rate, type it into the calculators. Incentive pages summarize what the IRS and AFDC publish and can lag a program that changed last week, so confirm with the program before you buy. The full source list, update schedule and change log are on the data page.

Nothing here is tax, financial or electrical advice. A charger install needs a licensed electrician and your local code.

Affiliate links and ads

As of Nov 8, 2026 PlugRates has no affiliate links. If we add links that pay a commission, this is the one place we will say so, and a commission will never change a figure, a ranking or a date in a table.

Corrections and contact

Write to contact@plugrates.com. If a figure looks wrong, send the page, the number and the source you checked. Fixes are recorded in the change log.