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How Much Does It Cost to Charge a Subaru Solterra in Hawaii?

Quick Answer

Charging a 2026 Subaru Solterra at home in Hawaii costs approximately $129/month — that's $0.13/mile and saves $594/year compared to a 28 MPG gas car at Hawaii's gas price of $5.00/gallon.

SUVs balance cargo space with reasonable efficiency, making them the most popular EV body style in the U.S. — and this one handles that balance well. Hot climates can reduce EV range by 10–15% due to air conditioning load and battery thermal management. Pre-conditioning your battery while still plugged in minimizes this effect.

Cost per Mile

$0.13

home charging

Monthly Cost

$129

1,000 miles/month

Annual Savings

$594

vs. 28 MPG gas car

About the 2026 Subaru Solterra

The Subaru Solterra is a joint development between Subaru and Toyota (where it's sold as the bZ4X), bringing Subaru's legendary symmetrical all-wheel drive and outdoor-focused engineering to the EV market. 227 miles of range is modest, but Subaru's 4WD capability is genuine.

Advantages

✓Subaru Symmetrical AWD — engineered specifically for off-road and winter conditions

✓Familiar Subaru-ness with EyeSight driver assistance standard

✓Subaru's outdoor-brand identity and loyal following

✓Shared Toyota platform ensures engineering stability

Considerations

✗100 kW DCFC is slow — 10–80% takes approximately 56 minutes

✗227-mile range is the lowest of any new EV SUV in 2025

✗3.1 mi/kWh efficiency is average; the low range amplifies the gap vs. competitors

✗No single-motor/RWD version — AWD standard

Ideal Buyer

Subaru Outback and Forester loyalists who want AWD in an EV. Winter-climate buyers for whom Subaru AWD is a cultural requirement. Rural buyers who need genuine all-weather capability.

vs. Gas Equivalent

Direct EV equivalent of a Subaru Forester or Outback. Gas equivalent is approximately 28–30 MPG for the Subaru Outback.

Subaru Solterra Charging Cost Breakdown in Hawaii

Hawaii's electricity rate of $0.40/kWh is above the national average of $0.17/kWh. At this rate, the Subaru Solterra's 72 kWh battery costs $28.80 for a full charge — a meaningful savings versus gas at current prices.

Charging Method

$/kWh

$/month

$/year

🏠 Home (Level 2)

$0.40

$129

$1,548

🔌 Public Level 2

$0.72

$232

$2,787

⚡ DC Fast Charger

$0.49

$158

$1,897

⛽ Gasoline (28 MPG)

$5.00/gal

$179

$2,143

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 Subaru SolterraSpecs & Charging Data

100 kW DCFC maximum. 72 kWh battery with 10–80% in approximately 56 minutes. Level 2 at home (6.6 kW onboard) fully charges in approximately 12 hours — a 7.2 kW Level 2 charger is recommended.

Battery

72 kWh

EPA Range

227 miles

Efficiency

3.1 mi/kWh

kWh/100 miles

32.3 kWh

DC Fast Charge

100 kW max

10–80% Time

~43 min

Body Type

SUV

MSRP

$44,995

Full Charge Cost

$28.80

EV Ownership in Hawaii

Hawaii has the highest EV adoption rate per capita in the US. High gas prices ($5+/gallon), abundant sunshine for solar integration, and strong state environmental policy make EVs the default choice for budget-conscious island residents.

Incentives & Programs

Hawaii offers a state income tax credit of 35% of cost (up to $5,000) for EV charger installation. Hawaiian Electric offers multiple EV-friendly rate plans. The combination of federal + state credits makes home charging infrastructure very affordable.

Charging Infrastructure

Oahu has excellent charging infrastructure. Maui and the Big Island are growing. Inter-island travel by car is impossible, so range anxiety is truly off the table — most Hawaii EVs rarely leave a 100-mile radius.

Grid & Energy Source

Hawaii is rapidly transitioning to 100% renewables by 2045. Current mix is ~40% solar + wind, ~55% oil (expensive legacy generation). Off-peak charging avoids the oil-heavy evening peak and leverages midday solar.

HawaiiElectricity Rates & EV Savings

The average residential electricity rate in Hawaii is $0.40/kWh, which is above the national average of $0.17/kWh. With a gas price of $5.00/gallon, Hawaii ranks as a moderate state for EV ownership.

Hot climates can reduce EV range by 10–15% due to air conditioning load and battery thermal management. Pre-conditioning your battery while still plugged in minimizes this effect. Your Subaru Solterra's 72 kWh battery provides up to 227 miles of EPA-rated range. Real-world range may vary by 10–30% depending on temperature, speed, and terrain.

Annual EV Cost (home)

$1,548

Subaru Solterra @ $0.40/kWh

Annual Gas Cost (28 MPG)

$2,143

@ $5.00/gallon in Hawaii

You save every year by driving electric in Hawaii

$594/year

That's $50/month saved vs. a 28 MPG gas car

Home vs. DC Fast Charging in Hawaii

Monthly cost comparison for 1,000 miles in a Subaru Solterra:

🏠 Home L2

$129

$129/mo

🔌 Public L2

$232

$232/mo

⚡ DC Fast

$158

$158/mo

⛽ Gasoline

$179

$179/mo

Tips for Charging Your Subaru Solterra in Hawaii

Hawaii's hot climate and charging infrastructure have specific implications for Subaru Solterra owners. Here are practical tips to maximize range and minimize charging costs in this state:

Hawaii's high $0.40/kWh rate hurts, but solar + EV is the antidote — a 5 kW rooftop array can offset most of your charging needs.

Hawaiian Electric's EV rate plans offer off-peak rates as low as $0.25/kWh from midnight to 6 AM.

The tropical heat and humidity have minimal impact on range compared to cold climates — steady temps mean consistent battery performance.

Due to the island's limited geography, your daily driving distance is usually low — even a small battery provides comfortable range coverage.

Frequently Asked Questions

How much does it cost to charge a Subaru Solterra at home in Hawaii?

At Hawaii's average residential rate of $0.40/kWh, charging a 2026 Subaru Solterra at home costs approximately $129/month based on 1,000 miles of driving. A full charge costs $28.80.

How much does it cost to fully charge a Subaru Solterra?

A full charge of the Subaru Solterra's 72 kWh battery costs $28.80 at Hawaii's rate of $0.40/kWh. At a public DC fast charger ($0.49/kWh), that's about $35.28.

Is it cheaper to charge a Subaru Solterra or drive a gas car in Hawaii?

Home charging the Subaru Solterra in Hawaii costs $0.13/mile. A comparable 28 MPG gas car costs $0.18/mile at Hawaii's gas price of $5.00/gallon. EVs save approximately $594/year.

How long does it take to charge a Subaru Solterra with DC fast charging?

The Subaru Solterra supports up to 100 kW DC fast charging. A 10–80% charge takes approximately 43 minutes at peak speed. Actual time varies by charger capacity, battery temperature, and current state of charge.

How much does a Subaru Solterra add to your electric bill in Hawaii?

Driving 1,000 miles/month in a Subaru Solterra adds about $129 to your monthly electric bill in Hawaii. That's 32.3 kWh per 100 miles × $0.40/kWh.

How does Hawaii's heat affect Subaru Solterra range and battery?

High temperatures in Hawaii increase air conditioning load and activate battery cooling systems, reducing effective range by 10–15%. With a 227-mile EPA range, expect 197–209 miles during peak summer heat. Pre-conditioning the cabin while plugged in helps preserve battery charge for actual driving.