Tennessee home charging cost for the 2026 Volvo EC40 Twin

In Tennessee, home electricity runs 13.9¢/kWh — put a 2026 Volvo EC40 Twin's EPA-rated 34.8 kWh/100mi against that and 100 miles costs $4.84, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home costs a fraction of what gas would here: 69.8% less than gas per mile, here specifically.

What a year of driving costs

At fueleconomy.gov's default of 15,000 annual miles, the 2026 Volvo EC40 Twin costs roughly $726 a year to charge at home in Tennessee, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,677 a year.

Cost of a full charge

Covering the 2026 Volvo EC40 Twin's EPA-rated 268-mile range takes about 93.4 kWh, which costs about $12.98 at Tennessee's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

How this compares nationally

This combination ranks 3,797 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Volvo EC40 Twin alone ranks 144 of 400 models for efficiency; Tennessee alone ranks 13 of 51 states for electricity price.

Next step: home charger installation

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

Ask a licensed Tennessee electrician to quote the install before this math becomes a real decision.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. At 13.9¢/kWh, Tennessee sits in the middle of the national range — the guide to why charging cost varies by state shows where.