How Much Does It Cost to Charge a BMW i4 in Maine?

Quick Answer

Charging a 2026 BMW i4 at home in Maine costs approximately $77/month — that's $0.077/mile and saves $660/year compared to a 28 MPG gas car at Maine's gas price of $3.70/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

$0.077

home charging

Monthly Cost

$77

1,000 miles/month

Annual Savings

$660

vs. 28 MPG gas car

About the 2026 BMW i4

The BMW i4 is the electric version of the beloved 4 Series Gran Coupe — a four-door fastback sedan that doesn't compromise driving dynamics for electrification. Available in eDrive40 (RWD, 301 miles) or M50 (AWD, 270 miles), it's the EV for driving purists.

Advantages

✓BMW's signature rear-wheel-drive dynamics translated brilliantly to electric

✓Stunning fastback design — one of the best-looking EVs available

✓M50 trim produces 544 hp with world-class handling

✓iDrive 8.5 is among the most refined automotive UIs available

Considerations

✗200 kW DCFC, while good, is below 800V competitors like Ioniq 5 or EV6 GT

✗M50's AWD adds weight that limits range to 270 miles

✗Gran Coupe roofline reduces rear headroom

✗No front trunk — limits total storage

Ideal Buyer

Driving enthusiasts who refuse to buy an EV that doesn't feel like a driver's car. BMW 3 or 4 Series owners ready to go electric. Buyers for whom style and dynamics matter as much as range.

vs. Gas Equivalent

Direct EV equivalent of the BMW 4 Series Gran Coupe. Gas equivalent fuel economy would be approximately 27 MPG for a comparable gas 4 Series.

BMW i4 Charging Cost Breakdown in Maine

Maine's electricity rate of $0.27/kWh is above the national average of $0.17/kWh. At this rate, the BMW i4's 81 kWh battery costs $21.87 for a full charge — a meaningful savings versus gas at current prices.

Charging Method

$/kWh

$/month

$/year

🏠 Home (Level 2)

$0.27

$77

$926

🔌 Public Level 2

$0.49

$139

$1,666

⚡ DC Fast Charger

$0.49

$140

$1,680

⛽ Gasoline (28 MPG)

$3.70/gal

$132

$1,586

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 i4Specs & Charging Data

200 kW DC fast charging. Level 2 at home (11 kW AC onboard) charges the 81 kWh battery in approximately 6.5 hours. 0–80% DC fast charging takes approximately 31 minutes.

Battery

81 kWh

EPA Range

301 miles

Efficiency

3.5 mi/kWh

kWh/100 miles

28.6 kWh

DC Fast Charge

200 kW max

10–80% Time

~24 min

Body Type

Sedan

MSRP

$52,200

Full Charge Cost

$21.87

EV Ownership in Maine

Maine's EV adoption is growing, particularly in the Portland metro and among second-home owners from Massachusetts. The state's high electricity rates are partially offset by strong state incentives and a desire to reduce dependence on heating oil.

Incentives & Programs

Maine offers a Efficiency Maine EV rebate (up to $2,000 for new EVs, $1,000 for used). Rebates for Level 2 charger installation are also available. Emera Maine and Central Maine Power offer off-peak EV charging rates.

Charging Infrastructure

I-95 and Route 1 coastal corridors have growing DCFC coverage. Portland has solid urban charging. Northern Maine (Aroostook County) is very sparse — the most remote charging desert in the Northeast.

Grid & Energy Source

Maine's grid is a mix of hydro, wind (~25%), and imports from the New England grid. A push toward off-shore wind is underway. EV charging in Maine is moderately clean and improving.

MaineElectricity Rates & EV Savings

The average residential electricity rate in Maine is $0.27/kWh, which is above the national average of $0.17/kWh. With a gas price of $3.70/gallon, Maine 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 i4's 81 kWh battery provides up to 301 miles of EPA-rated range. Real-world range may vary by 10–30% depending on temperature, speed, and terrain.

Annual EV Cost (home)

$926

BMW i4 @ $0.27/kWh

Annual Gas Cost (28 MPG)

$1,586

@ $3.70/gallon in Maine

You save every year by driving electric in Maine

$660/year

That's $55/month saved vs. a 28 MPG gas car

Home vs. DC Fast Charging in Maine

Monthly cost comparison for 1,000 miles in a BMW i4:

🏠 Home L2

$77

$77/mo

🔌 Public L2

$139

$139/mo

⚡ DC Fast

$140

$140/mo

⛽ Gasoline

$132

$132/mo

Tips for Charging Your BMW i4 in Maine

Maine's cold climate and charging infrastructure have specific implications for BMW i4 owners. Here are practical tips to maximize range and minimize charging costs in this state:

Maine winters are brutal — expect 35–40% range loss in January. A heated garage is worth every dollar for EV owners here.

The coastal summer tourism season clogs chargers at popular destinations. Use apps to check charger availability before driving to Kennebunkport or Bar Harbor.

Efficiency Maine rebates are income-stacked — lower-income buyers can get significantly more than the base $2,000.

Central Maine Power's EV charging tariff offers discounted overnight rates — enroll soon after purchase.

Frequently Asked Questions

How much does it cost to charge a BMW i4 at home in Maine?

At Maine's average residential rate of $0.27/kWh, charging a 2026 BMW i4 at home costs approximately $77/month based on 1,000 miles of driving. A full charge costs $21.87.

How much does it cost to fully charge a BMW i4?

A full charge of the BMW i4's 81 kWh battery costs $21.87 at Maine's rate of $0.27/kWh. At a public DC fast charger ($0.49/kWh), that's about $39.69.

Is it cheaper to charge a BMW i4 or drive a gas car in Maine?

Home charging the BMW i4 in Maine costs $0.077/mile. A comparable 28 MPG gas car costs $0.13/mile at Maine's gas price of $3.70/gallon. EVs save approximately $660/year.

How long does it take to charge a BMW i4 with DC fast charging?

The BMW i4 supports up to 200 kW DC fast charging. A 10–80% charge takes approximately 24 minutes at peak speed. Actual time varies by charger capacity, battery temperature, and current state of charge.

How much does a BMW i4 add to your electric bill in Maine?

Driving 1,000 miles/month in a BMW i4 adds about $77 to your monthly electric bill in Maine. That's 28.6 kWh per 100 miles × $0.27/kWh.

How does cold weather in Maine affect BMW i4 range?

Cold winters in Maine can reduce BMW i4 range by 20–40%. With a 81 kWh battery and 301-mile EPA range, plan for 211–241 miles in cold conditions. Use the scheduled departure feature to pre-heat the cabin while still plugged in to preserve driving range.