India's EV fleet is projected to grow sharply through 2030, and every one of those vehicles needs to charge somewhere. For business owners, hotels, malls, offices, apartment complexes, this is a real new revenue opportunity. Solar is what makes it profitable.
An EV charging station drawing power from the grid at ₹9–14/unit and selling it to EV owners at ₹15–18/unit makes a thin margin of ₹4–6/unit. The economics get genuinely compelling when you pair EV charging with captive solar generation: your input cost drops to roughly ₹1–2/unit, your margin expands to ₹13–15/unit, and you're selling solar-verified green charging, which EV owners increasingly prefer.
Residential apartment complexes, particularly in Bengaluru, Hyderabad, Mumbai and Chennai, are strong candidates for the solar-plus-EV-charging combination. Common-area solar for lifts, lighting and pumps cuts maintenance bills meaningfully, while rooftop EV charging opens a new revenue line from residents. A growing number of large complexes are structuring this as a shared amenity rather than a cost centre.
A 200-unit apartment complex installs a 75 kW rooftop solar system (roughly ₹42 lakh) alongside 6 EV chargers. Monthly common-area electricity savings of around ₹1.1 lakh, plus EV charging revenue of around ₹45,000 a month, adds up to a combined annual benefit near ₹18–19 lakh, a payback inside 2.5 years. Actual numbers depend heavily on tariff, utilisation and financing structure.
Use the calculator to size a system for your property and roof area, and see a realistic combined payback for solar plus EV charging.
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