How much does solar installation cost in Tamil Nadu?

Approximate all-inclusive costs after subsidies: 2 kW — ₹80,000, 3 kW — ₹1,10,000, 4 kW — ₹1,70,000, 5 kW — ₹2,20,000. Above 5 kW — contact us. Commercial & Industrial: ₹30,000–₹40,000 per kW. Agriculture: contact us. Use our solar calculator for a personalized estimate.

What is the government subsidy for rooftop solar in 2026?

Under PM Surya Ghar Yojana (continuing in 2026), residential rooftop solar qualifies for central subsidies: ₹30,000 for 1 kW, ₹60,000 for 2 kW, and ₹78,000 for 3 kW & above. Tamil Nadu residents also benefit from TEDA state incentives and TANGEDCO net metering credits. Tristar is an approved vendor and handles the complete subsidy application.

How much can I save on my electricity bill with solar?

A properly sized solar system typically reduces electricity bills by 70–90%. For example, a Tamil Nadu home consuming 500 units per month can save approximately ₹3,000–4,000 monthly with a 5 kW system. With TANGEDCO net metering, surplus power is exported to the grid and credited to your bill. Most residential systems pay for themselves in 4–5 years.

How long does solar installation take?

Residential installations take 1–2 days on-site. The complete process from free site survey through TANGEDCO net metering approval to commissioning takes 2–4 weeks. We handle all paperwork including TANGEDCO applications.

Does solar work during monsoon season in Tamil Nadu?

Yes, solar panels generate power even during cloudy or monsoon days, typically at 10–25% of rated capacity. Modern panels perform well in diffused light. Over the full year, Tamil Nadu's 300+ sunny days ensure strong annual generation despite the monsoon season.

Are there financing options available?

Yes. We offer zero-down EMI plans through partner banks, competitive solar loans with flexible tenure, and Power Purchase Agreements (PPA) for commercial customers with zero capital expenditure. We also assist with PM Surya Ghar subsidy applications to reduce your net cost.

What is the payback period for solar in Tamil Nadu?

Residential systems with net metering typically pay back in 4–5 years. Commercial systems achieve payback in 3–4 years due to higher tariff rates. After payback, you enjoy virtually free electricity for the remaining 20+ years of panel life.

Commercial Solar

Scale Your Business Sustainably

Reduce operational costs with industrial-grade solar. ROI in 3-4 years with net metering benefits from TANGEDCO.

Request Assessment View Projects

Government Subsidy

₹30,000

1 kW

₹60,000

2 kW

₹78,000

3kW & Above

Why Tristar

13+ Years Experience
500+ Installations
5 MW+ Installed
End-to-End Service

4.9/5

Read Reviews →

Authorized Vendor

MNRE

TEDA

TANGEDCO

Government Subsidy

₹30,000

1 kW

₹60,000

2 kW

₹78,000

3kW & Above

Why Tristar

13+ Years
500+ Installs
5 MW+ Capacity

4.9/5

Our Solar Solutions

Comprehensive solar energy solutions tailored to meet your specific needs and budget.

Residential Solar

Power your home with clean, renewable energy and reduce your electricity bills.

Commercial Solar

Scale your business sustainability with industrial-grade solar solutions.

Industrial Solar

Large-scale solar solutions for industries to reduce operational costs significantly.

Agricultural Solar

Solar-powered irrigation and farming solutions to support sustainable agriculture.

Solar Installation Across Tamil Nadu Districts

Serving all major districts with local expertise

Solar Installation in Coimbatore

Residential, Commercial & Industrial

Solar Installation in Chennai

Residential & Commercial

Solar Installation in Erode

Industrial & Agricultural

Solar Installation in Madurai

Residential & Commercial

Solar Installation in Trichy

Residential & Industrial

Solar Installation in Salem

Industrial & Commercial

Tirupur

Thanjavur

Ooty

Pollachi

Mettupalayam

Krishnagiri

Dindigul

Dharmapuri

Why Choose Tristar Green Energy?

With years of experience in solar installations across Tamil Nadu, Pondicherry & Andaman Nicobar Islands, we deliver quality, reliability, and exceptional customer service.

Up to 100% reduction in electricity bills
25+ years warranty on solar panels
Government subsidies available
Free site assessment and consultation
Professional installation team
24/7 monitoring and support

Learn More About Us

500+ Installations

Successfully completed across Tamil Nadu, Pondicherry & Andaman Nicobar Islands

5MW+

Total Capacity

2000+

Tons CO₂ Saved

Government Authorized Vendor

MNRE

Ministry of New & Renewable Energy

Government of India's nodal ministry for renewable energy

TEDA

Tamil Nadu Energy Development Agency

State nodal agency for renewable energy promotion

TANGEDCO

Tamil Nadu Generation & Distribution Corporation

State electricity utility for net metering approvals

Government Subsidies & Incentives

Take advantage of attractive government schemes to make solar more affordable.

PM Surya Ghar Muft Bijli Yojana

Under this central government scheme, residential consumers can get subsidies up to ₹78,000 for installing rooftop solar systems. The scheme aims to provide free electricity up to 300 units per month to 1 crore households.

₹30,000

1 kW

₹60,000

2 kW

₹78,000

3 kW & Above

40%

Max Subsidy

Tamil Nadu State Subsidy

TEDA provides additional state-level incentives for residential solar installations. Combined with central subsidies, you can save up to 40% on installation costs.

Net metering benefits
TANGEDCO approval support
Faster subsidy disbursement

How We Help

We handle the complete subsidy application process for you, ensuring maximum benefits with minimum hassle.

Complete documentation support
Online portal registration
Subsidy claim follow-up

Apply for Subsidy

Frequently Asked Questions

Common questions about solar installation, costs, and subsidies in Tamil Nadu

View All FAQs

What Our Customers Say

Hear from our satisfied customers across Tamil Nadu and Pondicherry.

Vivek

Coimbatore

Selvaraj

Coimbatore

"Even in the Andaman Islands, Tristar provided excellent service. They handled all the logistics and the installation was flawless. Our resort is now 100% solar powered!"

Anand Krishnan

Port Blair, Andaman

"The team at Tristar is very knowledgeable and patient. They answered all my questions and designed a system perfect for our needs. Zero complaints!"

Lakshmi Narayanan

Madurai, Tamil Nadu

"We installed a 10kW system for our textile factory. The ROI has been phenomenal - we recovered our investment in just 3 years. Outstanding quality and support."

Mohammed Ismail

Pondicherry

View All Testimonials