Depot Charger Utilization Calculator
Charger utilization %, monthly profit and capex payback from sessions, pricing and energy cost.
Depot chargers are cost centers, not profit centers — but the same utilization math tells you how many chargers you actually need. A depot charger above 40% utilization is a queueing problem waiting for a breakdown.
Public charging lives or dies on utilization: most sites break even around 6–10% (industry benchmark) and print money above 15%. Demand charges hide inside your per-kWh cost — negotiate an EV tariff with the utility before siting DC fast chargers.
Indicative estimates only, not financial or investment advice. Tariffs, subsidies and net-metering rules change — verify with your DISCOM, utility or installer before committing.
Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.
Use the free Depot Charger Utilization Calculator online — Charger utilization %, monthly profit and capex payback from sessions, pricing and energy cost. Runs instantly in your browser: no signup, no upload, mobile-friendly.
About Depot Charger Utilization Calculator
Depot chargers are cost centers, not profit centers — but the same utilization math tells you how many chargers you actually need. A depot charger above 40% utilization is a queueing problem waiting for a breakdown.
How to use Depot Charger Utilization Calculator
- 1Enter charger power and your expected sessions and kWh per session.
- 2Set your selling price and all-in energy cost.
- 3Read utilization, monthly profit and the payback year.
Why use Depot Charger Utilization Calculator?
- ✓Utilization % — the single number public-charging economics hinge on
- ✓Full P&L: margin per kWh, monthly profit, capex payback
- ✓Break-even sessions/day for site go/no-go decisions
- ✓Demand-charge-aware cost input
Frequently asked questions
What utilization does a charging station need to break even?+
Industry benchmarks put DCFC break-even near 6–10% utilization (energy dispensed ÷ 24×7 capacity); above 15% sites print money. In sessions: a 60 kW unit typically needs 5–7 sessions/day at healthy margins. The break-even row computes your site's exact threshold.
Why do public charging stations fail financially?+
Demand charges hiding in the energy cost, rent set against fuel-pump footfall fantasies, and year-one utilization (2–4%) treated as permanent. Survivors negotiate EV tariffs, size rent to realistic ramp-up, and pick sites with anchor traffic — the P&L here stress-tests all three.
What should I charge per kWh?+
Indian public DCFC clusters at ₹18–25/kWh; AC destination charging ₹12–18. Price = energy cost + demand-charge allocation + opex/kWh + margin. Undercutting to win volume fails if margin per kWh can't cover the fixed lines — the calculator shows the floor.
Is AC or DC charging the better business?+
Different businesses: DC sells speed to through-traffic at 10× the capex; AC sells dwell-time convenience at modest capex and modest kWh. Malls, hotels and offices monetize AC indirectly (footfall, room nights); highways need DC economics to stand alone. Model each with its own preset tool.
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