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Updated April 20, 2026 · Green & Sustainable Finance · Educational use only ·

EV Charging Network Calculator

EV charging business economics.

Calculate EV charging network monthly profit and payback from charger count, daily sessions, electricity input cost, and per-session revenue.

What this tool does

This calculator models the monthly operating profit of an EV charging network by combining upfront hardware costs with daily revenue and energy expenses. It takes your network size, installation investment per unit, energy procurement cost, retail pricing, and expected usage patterns—measured in daily sessions and kilowatt-hours per session—then estimates both monthly profit and the payback period for your initial buildout investment. The result illustrates how sensitive network economics are to charge price, energy cost, and session volume; small shifts in any of these significantly alter profitability timelines. The calculator assumes consistent daily usage patterns and does not account for maintenance, staffing, grid connection fees, idle time, or demand charges. Results are for financial illustration only and reflect a simplified operating model.


Enter Values

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Formula Used
Chargers
Sessions
kWh
Price
Cost

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Disclaimer

Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.

EV charging station economics: installation 5-30k per charger (rapid: 30-80k), energy cost 0.15-0.25/kWh wholesale, charge price 0.40-0.80/kWh retail. Margin per kWh: 0.20-0.50. With 4-10 sessions/day per charger at 30 kWh average, monthly revenue 1,000-4,500 per charger.

10 chargers × 15k install = 150k. 6 sessions/day × 30 kWh × 0.50 charge = 90/day per charger × 10 = 900/day. Energy cost: 0.20/kWh × 1,800 kWh/day = 360. Daily profit 540, monthly 16,200. Payback 9.3 months. Strong economics driven by increasing EV adoption.

Location is everything: motorway services and retail parks with high footfall see 8-15 sessions/day. Residential areas 2-4 sessions/day. Workplace charging 4-8 during business hours. Site selection determines whether a charger makes money or sits idle.

Run it with sensible defaults

Using number of chargers of 10, install cost per charger of 15,000, energy cost per kwh of 0.2, charge price per kwh of 0.5, the calculation works out to 16,200.00. The defaults are meant as a starting point, not a recommendation.

The levers in this calculation

The inputs — Number of Chargers, Install Cost per Charger, Energy Cost per kWh, Charge Price per kWh, and Sessions per Charger Daily — do not pull with equal force. Not every input has equal weight. Adjusting one input at a time toward extreme values shows which ones move the result most.

How the math works

Revenue = chargers × sessions × kWh × price × 30 days. Energy = same at energy cost. Profit = revenue - energy.

Beyond the number

Carbon, health, and local air quality don't show up on the calculator but often drive the decision. The financial figure is a lower bound on the value; the rest is whatever you'd pay for the non-financial benefits.

What this doesn't capture

Carbon reduction, health benefits, and local air quality have real value the financial figure doesn't price. The calculation gives the money side honestly; for the full picture, note the non-financial benefits alongside.

Example Scenario

10 × 6/day × 30kWh × (££0.5 - ££0.2) = 16,200.00.

Inputs

Number of Chargers:10
Install Cost per Charger:£15,000
Energy Cost per kWh:£0.2
Charge Price per kWh:£0.5
Sessions per Charger Daily:6
Avg kWh per Session:30
Expected Result16,200.00

This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.

Sources & Methodology

Methodology

The calculator computes monthly profit by modeling a charging network's revenue and operating costs. It multiplies the number of chargers by daily sessions per charger, average kilowatt-hours per session, and the charge price per kilowatt-hour, then scales this by 30 days to estimate monthly revenue. Energy costs are calculated using the same volume metric—chargers, sessions, and kilowatt-hours—but applied against the energy cost per kilowatt-hour. Monthly profit is derived by subtracting total energy costs from total revenue. The model assumes constant daily session volumes, stable pricing, and a 30-day month. It does not account for installation costs, maintenance, grid fees, downtime, seasonal demand variation, or changes in energy or charging prices over time.

Frequently Asked Questions

Rapid vs slow charger?
Slow (7kW): 5-10k install, 3-4 hour charge, 0.35-0.50/kWh. Rapid (50kW): 20-40k, 30-45 min, 0.50-0.70/kWh. Ultra-rapid (150kW+): 50-80k, 15-30 min, 0.60-0.80/kWh. Higher power = higher revenue per session but higher install cost.
Government grants?
OZEV Workplace Charging Scheme: up to 350 per socket (max 40). On-street: up to 60% of install cost. Check current schemes at gov.uk - grants change frequently but consistently available for commercial installations.
Energy contract matters?
Wholesale energy at 0.15-0.20/kWh vs domestic at 0.30+/kWh makes big difference. Negotiate commercial energy contracts. Solar/battery pairing can reduce effective energy cost to 0.05-0.10/kWh for daytime charging.
Future-proofing?
Install higher-power cabling than current chargers need. A 22kW AC today with 100kW cabling underneath can upgrade later without re-trenching. Trenching is 50-70% of install cost - do it once for maximum future capacity.

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