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Solar Panel Cost in Chennai (2026 Updated Prices)
Complete pricing guide for rooftop solar in Chennai: 3kW, 5kW, 10kW costs with MNRE subsidy, installation, and payback analysis.
Solar System Costs in Chennai (2026)
| System Size | Cost (Before Subsidy) | MNRE Subsidy | Net Cost | Monthly Savings |
|---|---|---|---|---|
| 1kW | ₹60,000-70,000 | ~₹18,000 | ₹42k-52k | ₹800-1,200 |
| 3kW | ₹1.8L-2.1L | ~₹54,000 | ₹1.25L-1.55L | ₹2,500-3,500 |
| 5kW | ₹2.75L-3.25L | ~₹78,000 | ₹2L-2.5L | ₹4,000-6,000 |
| 10kW | ₹5L-6L | Limited | ₹4.2L-5.2L | ₹8,000-12,000 |
What's Included in the Price?
- Tier-1 mono PERC solar panels (545W, 25-year warranty)
- On-grid inverter (5-year warranty, extendable to 10 years)
- Mounting structure (aluminum/galvanized steel)
- DC cables, AC cables, and connectors (MC4)
- Earthing kit and lightning arrester (SPD)
- Installation, commissioning, and testing
- Net metering application and TANGEDCO coordination
- MNRE subsidy documentation assistance
Chennai Solar Market Insights
- High adoption areas: T. Nagar, Anna Nagar, Adyar, Velachery, OMR, ECR
- Average sunlight: 5.5-6.5 hours/day; coastal humidity requires corrosion-resistant materials
- Tariff rates: Residential ₹4-7/unit; commercial ₹7-10/unit
- Net metering timeline: 15-20 days TANGEDCO approval typical in Chennai circle
- ROI: 4-5 years with subsidy; faster for high-tariff consumers (₹6+/unit)
Factors Affecting Solar Cost in Chennai
- Roof type: RCC flat roof (easiest); tile/sheet roof needs custom mounting
- Shadow: Nearby buildings/trees reduce output; site survey critical
- Panel quality: Tier-1 panels cost more but give 15-20% better output and longer warranty
- Inverter choice: String inverter (standard) vs microinverter (better for partial shade)
- Installation complexity: Multi-story access, crane requirement, or marine-grade fasteners for coastal areas
FAQ
- 5kW cost? ₹2.75L-3.25L before subsidy; net cost ₹2L-2.5L with ~₹78k MNRE subsidy.
- Subsidy available? Yes, MNRE provides up to ~₹78k for residential rooftops with approved vendors.
- Payback? 4-5 years with Chennai tariffs (₹4-7/unit) and good sunlight; 25+ year system life.