In 2026, a typical on-grid residential solar system in Mumbai costs roughly ₹55,000 to ₹70,000 per kW before subsidy, depending on panel brand, inverter, roof type, shadow profile, and installer quality. While prices vary across suppliers and brands, here is an indicative range for residential rooftop solar systems in Mumbai: These prices include. Mumbai has India's highest domestic electricity tariff (₹10. 50+/unit in upper slabs), making solar ROI among the fastest in the country — payback under 4 years for most households. With electricity tariffs charged by Adani Electricity at ₹10. Here's a breakdown of what to expect when considering solar. The solar system for home price in India varies based on system size (measured in kilowatts or kW), the type of technology used (monocrystalline, polycrystalline, or TOPCon), and the system configuration (on-grid, off-grid, or hybrid).
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