Solar Savings Calculator Tamil Nadu
Calculate your potential savings with precision
Enter amount between ₹2,000 and ₹30,000 • We specialize in 3 kW+ systems
Common Questions About Solar Savings
How accurate is this calculator?
Our calculations are based on real-world data from TNEB tariffs (₹7.8 avg/unit) and Tamil Nadu's average solar irradiation (approx. 4-5 units per kW per day). While actual generation varies by season, this gives a highly realistic estimate of your potential savings.
Does this include the subsidy?
The calculator provides a "System Cost" estimate that serves as a baseline. The PM Surya Ghar subsidy (up to ₹78,000) is deducted from your final quotation, significantly improving the ROI shown here.
3kW vs 5kW: Which do I need?
If your bi-monthly bill is ₹1,500 - ₹3,500, a 3kW system is usually sufficient. If your bill is above ₹4,000 or you run multiple ACs, a 5kW system is recommended to reach a "Zero Bill" status.
What is the "Payback Period"?
The payback period is the time it takes for your electricity bill savings to cover the total cost of installation. In Cuddalore, thanks to high sunlight and subsidies, this is typically just 3 to 4 years. After that, your electricity is essentially free!
Still have questions? Our experts are here to help.
Contact an ExpertPrecision Solar ROI & Savings Calculation in Tamil Nadu
Calculating your accurate solar return on investment (ROI) is the most critical step before installing a rooftop solar plant. Our advanced solar savings calculator is specifically calibrated for TNEB (Tamil Nadu Generation and Distribution Corporation) bi-monthly billing slabs and the high solar irradiance levels typical of districts like Cuddalore, Villupuram, and Puducherry. By inputting your average electricity bill, our tool instantly computes the optimal system size-whether it is a compact 3kW setup for standard homes or a robust 5kW to 10kW system for high-consumption households running multiple air conditioners.
Beyond basic generation estimates, understanding the financial impact of the PM Surya Ghar Muft Bijli Yojana is vital. This national subsidy program drastically reduces the upfront capital required, bringing the typical break-even point down to just 3 to 4 years. Once the system pays for itself, you will enjoy over two decades of virtually free electricity, protected against future TNEB tariff hikes. Use this calculator as your initial guide, and contact Surya's Solar for a comprehensive, on-site technical feasibility and shadow analysis.