SolarCalculatorsSolar for Commercial EV Charging Stations in India (2026)
This calculator is for businesses setting up public, fleet, or highway EV charging infrastructure — offices, malls, fleet depots, and highway charging hubs — not homeowners charging a personal EV. As India's charging network scales up, running that infrastructure on solar rather than pure grid power meaningfully improves the unit economics, since electricity cost is one of the largest recurring expenses for a charge point operator (CPO).
Looking for home EV charging instead? Use our Solar for EV Charging Calculator for residential setups.
Solar + Battery — Handling Peak DC Fast-Charging Loads
DC fast chargers draw high instantaneous power — typically 30–150 kW per charger, far above what a small rooftop solar array alone can supply the instant a car plugs in. Most commercial solar-powered charging stations pair solar generation with battery storage: solar charges the battery through the day, and the battery discharges to meet sharp demand spikes during actual charging sessions. This avoids oversizing the grid connection (which is expensive and slow to get approved) while still running mostly on self-generated power.
Typical Costs & ROI for Solar EV Charging Stations
| Station Type | Typical Setup | Payback Period |
|---|---|---|
| Office / mall (AC charging, moderate use) | Solar + grid-tied, light battery buffer | 4–6 years |
| Fleet depot (scheduled overnight + daytime charging) | Solar + battery, sized to fleet schedule | 4–5 years |
| Highway / high-traffic DC fast-charging hub | Solar + larger battery buffer for peak demand | 2–3.5 years |
Payback ranges are indicative for 2026 and depend heavily on charger utilization (how many sessions per day), local commercial tariffs, and battery sizing. High-traffic DC fast-charging locations see the fastest payback because charger utilization — not solar generation alone — drives most of the revenue and savings.
Government Incentives for EV Charging Infrastructure
Central schemes like PM E-DRIVE and various state EV policies offer capital support for public charging infrastructure, and some states apply a preferential (lower) electricity tariff specifically for EV charging load compared to standard commercial tariffs. Solar-powered stations may also be eligible for separate renewable-energy-linked incentives depending on the state. These schemes and rates change frequently — verify current incentives with your state EV/renewable energy nodal agency before finalizing your project.
Sizing Considerations Before You Build
- Charger mix matters more than total load alone — a station with mostly AC (slow) chargers has a very different solar+battery sizing need than one with DC fast chargers.
- Battery sizing should match your peak session pattern, not just average daily throughput — undersized batteries can't smooth out fast-charging demand spikes.
- 40% accelerated depreciation under Section 32 of the Income Tax Act applies to the solar asset for registered business entities, same as other commercial solar investments.
- Grid connection capacity is often the real bottleneck for DC fast-charging hubs — solar + battery reduces how much grid capacity you need to apply for.
Related: Home EV Charging Calculator | OPEX vs CAPEX | Solar Battery Price List | Get Commercial Quote