2026 Rivian R1T All-Terrain Performance Dual Large (20in): home charging cost in Mississippi

In Mississippi, home electricity runs 15.35¢/kWh — put a 2026 Rivian R1T All-Terrain Performance Dual Large (20in)'s EPA-rated 44.4 kWh/100mi against that and 100 miles costs $6.81, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home is much cheaper than gas here: 57.5% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Rivian R1T All-Terrain Performance Dual Large (20in) charged at home in Mississippi costs about $1,021/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,382 a year.

What one full charge costs

A 2026 Rivian R1T All-Terrain Performance Dual Large (20in) needs roughly 128.2 kWh to reach its EPA-rated 289-mile range, which runs about $19.68 at 15.35¢/kWh in Mississippi.

How this compares nationally

This combination ranks 12,508 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Rivian R1T All-Terrain Performance Dual Large (20in) alone ranks 347 of 400 models for efficiency; Mississippi alone ranks 22 of 51 states for electricity price.

Before you install a home charger in Mississippi

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 Mississippi 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 15.35¢/kWh, Mississippi sits in the middle of the national range — the guide to why charging cost varies by state shows where.