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How Much Does It Cost to Charge a BMW i7 in South Dakota?

Quick Answer

Charging a 2026 BMW i7 at home in South Dakota costs approximately $50/month — that's $0.050/mile and saves $900/year compared to a 28 MPG gas car at South Dakota's gas price of $3.50/gallon.

Sedans offer excellent aerodynamics and some of the highest efficiency ratings in the EV market, making them among the most cost-effective EVs to run daily. Cold weather reduces EV range by 20–40% as the battery heats itself and the cabin. Use scheduled departure to pre-heat on shore power before driving.

Cost per Mile

$0.050

home charging

Monthly Cost

$50

1,000 miles/month

Annual Savings

$900

vs. 28 MPG gas car

About the 2026 BMW i7

The BMW i7 is the electric flagship — the electric version of the 7 Series limousine that has defined executive travel for decades. With up to 105 kWh of battery, a 31.3" Theater Screen for rear passengers, and 318 miles of range, it defines EV luxury.

Advantages

✓31.3" rear Theatre Screen transforms rear-seat passenger experience

✓Class-defining interior craftsmanship and material quality

✓Available as M70 xDrive with 660 hp

✓Standard driving assistance and semi-automated parking

Considerations

✗$106,900+ price requires justification beyond performance alone

✗2.6 mi/kWh efficiency reflects its limousine weight and size

✗Large exterior dimensions limit urban maneuverability

✗195 kW charging is somewhat modest given the price tier

Ideal Buyer

C-suite executives who want the world's best rear-seat EV experience. BMW 7 Series loyalists moving to electric. Buyers for whom the Theatre Screen and massaging seats are genuine requirements.

vs. Gas Equivalent

Direct EV replacement of the BMW 7 Series 740i/750i. Gas equivalent is approximately 22–25 MPG for comparable luxury limousines.

BMW i7 Charging Cost Breakdown in South Dakota

South Dakota's electricity rate of $0.13/kWh is below the national average of $0.17/kWh. At this rate, the BMW i7's 105 kWh battery costs $13.65 for a full charge — a meaningful savings versus gas at current prices.

Charging Method

$/kWh

$/month

$/year

🏠 Home (Level 2)

$0.13

$50

$600

🔌 Public Level 2

$0.23

$90

$1,080

⚡ DC Fast Charger

$0.49

$188

$2,262

⛽ Gasoline (28 MPG)

$3.50/gal

$125

$1,500

Based on 1,000 miles/month. Public L2 estimated at 1.8× home rate. DC fast charging at national average of $0.49/kWh.

2026 BMW i7Specs & Charging Data

195 kW DC fast charging on a 105 kWh battery. Level 2 at home (11 kW AC onboard) fully charges in approximately 8.5 hours. 10–80% DC fast charge takes approximately 34 minutes.

Battery

105 kWh

EPA Range

318 miles

Efficiency

2.6 mi/kWh

kWh/100 miles

38.5 kWh

DC Fast Charge

195 kW max

10–80% Time

~32 min

Body Type

Sedan

MSRP

$106,900

Full Charge Cost

$13.65

EV Ownership in South Dakota

South Dakota has very low EV adoption due to rural geography and a small population. Sioux Falls and Rapid City are the primary markets. The state's low electricity rates make charging cheap for those who adopt EVs.

Incentives & Programs

South Dakota has no state EV incentive. Federal incentives apply. MDU Resources and Black Hills Energy offer standard rate structures. The state has no income tax, which makes the federal income tax credit the primary incentive.

Charging Infrastructure

I-90 has limited DCFC — primarily at major stops like Sioux Falls, Mitchell, Rapid City. The Black Hills area (Mount Rushmore, Badlands) is improving. Long gaps exist on north-south routes.

Grid & Energy Source

South Dakota's grid is approximately 40% hydro (Missouri River dams), 30% wind, and 20% coal. The hydro and wind combination makes South Dakota's EV charging relatively clean, similar to neighboring North Dakota in wind characteristics.

South DakotaElectricity Rates & EV Savings

The average residential electricity rate in South Dakota is $0.13/kWh, which is below the national average of $0.17/kWh. With a gas price of $3.50/gallon, South Dakota ranks as a favorable state for EV ownership.

Cold weather reduces EV range by 20–40% as the battery heats itself and the cabin. Use scheduled departure to pre-heat on shore power before driving. Your BMW i7's 105 kWh battery provides up to 318 miles of EPA-rated range. Real-world range may vary by 10–30% depending on temperature, speed, and terrain.

Annual EV Cost (home)

$600

BMW i7 @ $0.13/kWh

Annual Gas Cost (28 MPG)

$1,500

@ $3.50/gallon in South Dakota

You save every year by driving electric in South Dakota

$900/year

That's $75/month saved vs. a 28 MPG gas car

Home vs. DC Fast Charging in South Dakota

Monthly cost comparison for 1,000 miles in a BMW i7:

🏠 Home L2

$50

$50/mo

🔌 Public L2

$90

$90/mo

⚡ DC Fast

$188

$188/mo

⛽ Gasoline

$125

$125/mo

Tips for Charging Your BMW i7 in South Dakota

South Dakota's cold climate and charging infrastructure have specific implications for BMW i7 owners. Here are practical tips to maximize range and minimize charging costs in this state:

I-90 in South Dakota has very long stretches between exits — always charge fully at Mitchell or Murdo before continuing.

Rapid City is the key charging hub for Black Hills/Badlands visits — arrive with sufficient range for touring.

South Dakota winters are severe (-20°F in January) — expect 40–50% range loss in deep winter months.

The hydro + wind grid makes SD EV charging cleaner than the Midwest average.

Frequently Asked Questions

How much does it cost to charge a BMW i7 at home in South Dakota?

At South Dakota's average residential rate of $0.13/kWh, charging a 2026 BMW i7 at home costs approximately $50/month based on 1,000 miles of driving. A full charge costs $13.65.

How much does it cost to fully charge a BMW i7?

A full charge of the BMW i7's 105 kWh battery costs $13.65 at South Dakota's rate of $0.13/kWh. At a public DC fast charger ($0.49/kWh), that's about $51.45.

Is it cheaper to charge a BMW i7 or drive a gas car in South Dakota?

Home charging the BMW i7 in South Dakota costs $0.050/mile. A comparable 28 MPG gas car costs $0.13/mile at South Dakota's gas price of $3.50/gallon. EVs save approximately $900/year.

How long does it take to charge a BMW i7 with DC fast charging?

The BMW i7 supports up to 195 kW DC fast charging. A 10–80% charge takes approximately 32 minutes at peak speed. Actual time varies by charger capacity, battery temperature, and current state of charge.

How much does a BMW i7 add to your electric bill in South Dakota?

Driving 1,000 miles/month in a BMW i7 adds about $50 to your monthly electric bill in South Dakota. That's 38.5 kWh per 100 miles × $0.13/kWh.

How does cold weather in South Dakota affect BMW i7 range?

Cold winters in South Dakota can reduce BMW i7 range by 20–40%. With a 105 kWh battery and 318-mile EPA range, plan for 223–254 miles in cold conditions. Use the scheduled departure feature to pre-heat the cabin while still plugged in to preserve driving range.