What "EV charger ROI" actually means
Return on investment for an EV charging station is simple in concept: how long it takes the money you earn from charging sessions to pay back what you spent installing the charger, and what it earns you every month after that. In practice, it depends on a handful of numbers that vary a lot by location — which is why a single "charger costs ₹X, earns ₹Y" headline you see online rarely matches your actual site.
The five numbers that decide your payback period
Hardware and installation cost — the charger itself plus civil work, wiring and any transformer/load upgrade, which varies a lot between a simple AC charger and a DC fast charger. Utilisation — how many hours a day the charger is actually in use, which depends entirely on footfall at the location (a highway dhaba or mall sees very different usage than a residential society). Price per unit you charge — your tariff minus the electricity cost you pay, which sets your margin per kWh sold. Electricity cost at that site — commercial tariffs vary by state and by connection type, and this is the biggest variable most people underestimate. Maintenance and network/software fees — ongoing costs that quietly eat into monthly profit if left out of the math.
Why the Bolt.Earth network specifically
The calculator above is built around Bolt.Earth's charger economics because that's the network EVGyan has direct, hands-on experience installing and running chargers on. Bolt.Earth provides the hardware, the charging app/network, and handles discovery for drivers — so your side of the ROI math is mostly site cost, electricity cost, and realistic utilisation for your specific location.
How to get an accurate number from the calculator
Garbage numbers in, garbage payback period out — the single biggest mistake is guessing utilisation too optimistically. Use your location's actual footfall (or a nearby comparable site's) rather than a best-case guess, use your real commercial electricity tariff (check your last bill, not a rough estimate), and include installation extras like civil work and any electrical upgrade in your investment number, not just the charger's sticker price. The calculator will instantly show you the payback period, monthly profit and total investment needed once you've got honest numbers in — and you can download the results to compare a few scenarios side by side.
Who this is for
Property owners, housing societies, highway restaurant/dhaba operators, and anyone evaluating whether to add an EV charger to a commercial or residential site. If your numbers come back marginal, the usual next step is talking to Bolt.Earth or a similar network directly about site selection — a few hundred metres can change footfall, and footfall is what actually drives the return.