Connect with verified solar vendors, check rooftop subsidies, and get the best pricing for solar installation in Chennai, Tamil Nadu.
💡 Tamil Nadu has excellent solar irradiance. TANGEDCO net metering approved for up to 10kW.
Chennai is experiencing rapid solar adoption due to favorable climate conditions and strong government incentives. The PM Surya Ghar Muft Bijli Yojana makes it more affordable than ever to switch to rooftop solar. Most 2–3 BHK homes benefit from a 3–5 kW solar system, which can reduce electricity bills by ₹2,000–3,000 monthly and pay for itself in just 3–4 years.
With net metering support from TNPDCL (Tamil Nadu Power Distribution Corporation, formerly TANGEDCO), excess solar energy you generate gets credited back to your account, maximizing your savings year-round. Current tariffs of ₹5.5–8/unit make solar highly cost-effective in Chennai.
Understanding local climate factors helps optimize your solar system size and expected returns.
5.6 hours/day average — Very good solar irradiance year-round, ideal for residential and commercial rooftop installations.
1,400–1,700 units/kW/year — A 3kW system generates 4,200–5,100 units annually, covering 80–100% of average household consumption in Chennai.
June–September — Generation drops 30–40% during monsoon but summer months more than compensate. Annual production remains strong in Tamil Nadu.
₹5.5–8/unit via TNPDCL (Tamil Nadu Power Distribution Corporation, formerly TANGEDCO). Higher rates improve ROI. Net metering ensures fair credit for surplus solar energy.
A typical 3kW rooftop solar system includes panels, inverter, mounting structure, wiring, and labour. Here's what to expect:
Solar Panels (3kW): ₹75,000–95,000 (₹25–32/watt, DCR panels)
Inverter (3kW on-grid string): ₹25,000–40,000
Mounting Structure & Wiring: ₹20,000–30,000
Labour & Installation: ₹15,000–25,000
Other (net meter, earthing, permits): ₹10,000–20,000
Total Cost: ₹1,60,000–₹2,10,000
After ₹78,000 Subsidy: ₹82,000–1,32,000
Want a figure for your own home? Enter your monthly bill in our free solar calculator to see the right system size, cost after subsidy and payback period for Chennai.
Typical timeline from decision to power generation: 45–60 days.
Free on-site evaluation of roof capacity, shade analysis, and electrical loads. Takes 30–60 mins.
Receive 3D design, detailed cost breakdown, and 25-year savings projection. Compare 2–3 quotes.
Installer files net metering application with TNPDCL (Tamil Nadu Power Distribution Corporation, formerly TANGEDCO). Approval: 30–45 days. No cost to you.
Physical installation takes 3–5 days for residential systems. Final testing and grid sync included.
After installation, apply for PM Surya Ghar subsidy. Funds transferred within 60–90 days.
Start generating electricity. Monthly savings appear on your TNPDCL (Tamil Nadu Power Distribution Corporation, formerly TANGEDCO) bill immediately.
Tamil Nadu has excellent solar irradiance. TANGEDCO net metering approved for up to 10kW.
| Policy Feature | Details for Chennai |
|---|---|
| DISCOM | TNPDCL (Tamil Nadu Power Distribution Corporation, formerly TANGEDCO) |
| Electricity Tariff | ₹5.5–8/unit (domestic) |
| Maximum System Size | Up to 10 kW (residential). No upper limit for commercial. |
| Credit Period | Monthly rollover. Unused credits reset annually. |
| Connection Fee | Free. DISCOM provides net meter installation at no cost. |
| Approval Time | 30–45 days from application with complete documents. |
Top-rated solar installation companies serving the Chennai region.
Blues Renewables, a rooftop solar EPC company in Chennai. Since 2020 we have designed, built and commissioned on-grid, off-grid and hybrid solar systems for homes, apartment associations, factories, schools and hospitals across Tamil Nadu- and filed the subsidy and net metering paperwork that goes with them. To know more- https://bluesrenewables.com/
View Details & Get QuoteMSME SOLAR INSULATION TRAINING COMPLETED, MSME, PAN CARD, ISO CERTIFICATE, GST To be Applied Today Partner Ship deed, Rental Lease Agreement
View Details & Get QuoteMEC Solar established in 1985, as Anu Electronics and Electricals and now know as MEC SOLAR is a pioneering renewable energy solutions provider based in Chennai, India, committed to making electricity accessible, affordable, and sustainable for communities across the nation. Since its inception, MEC Solar has stood as a symbol of innovation, quality, and social responsibility in the solar energy sector. With decades of expertise in electrical and solar projects, the company has positioned itself as a trusted partner for individuals, institutions, and government bodies seeking reliable and efficient solar solutions. At the heart of MEC Solar’s mission lies a belief that energy is not just a commodity but a basic human right. This philosophy drives the organization to go beyond business, creating meaningful impact in society while contributing to India’s renewable energy revolution. Recognizing this commitment, **Schneider Electric has certified MEC Solar as an official *Access to Energy Partner* in India**, a distinction that underlines its credibility, technical expertise, and dedication to sustainable development. This prestigious certification places MEC Solar among a select group of organizations working hand-in-hand with Schneider Electric to extend clean, safe, and reliable energy to underserved and rural communities across India. As an Access to Energy Partner, MEC Solar plays a critical role in bridging the gap between modern renewable technologies and the people who need them the most. Rural India, where access to uninterrupted electricity is still a challenge, stands to benefit enormously from MEC Solar’s initiatives. By deploying solar-powered systems in schools, healthcare centers, small businesses, and households, MEC Solar ensures that energy becomes a tool for education, healthcare improvement, economic empowerment, and overall quality of life enhancement. These efforts align perfectly with India’s national goals for renewable energy expansion and sustainable rural development. MEC Solar’s technical expertise covers a wide range of solar energy solutions, including on-grid and off-grid systems, hybrid solar inverters, solar-powered pumping systems, and innovative backup solutions. The company has successfully executed projects for government institutions, private enterprises, and non-profit foundations. Notably, its projects in Tamil Nadu schools, completed in collaboration with foundations and government bodies, have delivered uninterrupted energy to thousands of students, creating an environment where learning can thrive without the interruption of power cuts. Looking ahead, MEC Solar continues to build on its vision of “Makes Electricity Cheaper” by driving affordability in renewable energy solutions while maintaining high standards of quality and service. By blending technical innovation with social commitment, and with the strong backing of Schneider Electric’s global expertise, MEC Solar is steadily shaping a greener and brighter future for India. In essence, MEC Solar is more than a solar company—it is a movement toward sustainable energy, social impact, and inclusive growth. Through its certified partnership with Schneider Electric, MEC Solar reaffirms its commitment to empowering rural India with access to clean energy and paving the way for a sustainable tomorrow.
View Details & Get QuoteSolar adoption in Chennai is growing rapidly. With the PM Surya Ghar Muft Bijli Yojana, homeowners can significantly reduce electricity bills. The average system installed is 3kW to 5kW — sufficient for a standard 2–3 BHK household. TNPDCL (Tamil Nadu Power Distribution Corporation, formerly TANGEDCO) actively supports net-metering, making this the perfect time to go green.
With electricity rates at ₹5.5–8/unit and 5.6 peak sun hours daily, Chennai homeowners achieve payback in 3–4 years — among the best ROI for solar in Tamil Nadu.
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