BMW
2025 · xDrive50 high-efficiency reference · APS

BMW iX charging cost with APS in Arizona

Using CalcuRiver’s current verified APS EV Overnight Charging schedule, a recurring 11 p.m.–7 a.m. every day in 2026-10 charging window resolves to a duration-weighted 10.45¢/kWh. At 1,000 miles/month, BMW iX is estimated at $42.44 in wall electricity — $20.00 less than the Arizona statewide-average result.

EV Cost Result
Location10.45¢/kWh

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Utility default: APS · EV Overnight Charging · Recurring 23:00–07:00 charging · every day · 2026-10 · utility local time · last verified 2026-09-28
Arizona residential rate15.38¢/kWhEIA · 2026-07 · preliminary
vs U.S. average-16.0%U.S. average 18.31¢/kWh
year over year+0.3%vs July 2025
national rank#33highest residential price
Result explained

Why this number?

Calculation

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Rate used

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U.S. comparison

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Boundary

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Actual tariff intelligence

APS EV Overnight Charging: charging-window rate used

Recurring 23:00–07:00 charging · every day · 2026-10 · utility local time. The result is computed from the verified schedule rather than treating one advertised period as a universal flat rate.

Utility tariff details →

Effective charging rate

Weighted rate10.45¢/kWh
BMW iX · 1,000 mi/month$42.44/mo
State-average comparison$20.00 lower/mo

Tariff window breakdown

Overnight off-peak · 48.8% of window8.47¢/kWh
Off-peak · 48.4% of window12.35¢/kWh
Off-peak · 2.8% of window12.35¢/kWh

Rate version cr.aps.ev-overnight.2024-03-08.v1 · effective 2024-03-08 to open · last verified 2026-09-28.

Boundary. This is a marginal charging-energy estimate. Fixed charges, taxes, riders and account-specific adjustments remain separate unless explicitly modeled.

What is being calculated?

Vehicle efficiency2.46 mi/kWh
Utility reference10.45¢ scheduled effective
Battery reference111.8 kWh

MPGe-backed vehicles use the EPA 33.7 kWh/gallon-equivalent conversion; EPA says the MPGe label value already includes charging losses, so CalcuRiver does not add another default loss. Where a manufacturer source gives usable battery and EPA-estimated range but not MPGe, the reference efficiency is battery ÷ range and a 10% wall-loss assumption is applied by default.

cost = miles × 0.406024 kWh/mile × 1.00 × $0.10454/kWh

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Vehicle sourceU.S. DOE Alternative Fuels Data Center

Battery reference: 111.8 kWh. Data reviewed 2026-09-28.

Open source →
Utility reference ≠ complete bill. This estimate applies the encoded marginal energy reference for APS. Fixed charges, taxes, account-specific riders, eligibility rules and unmodeled bill components remain separate unless the tariff engine explicitly models them.

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