Solar Savings Calculator
See a quick, indicative estimate of your system size, yearly saving and payback — built on current Tamil Nadu tariff rates. Your exact numbers are confirmed after a free site survey.
1. What best describes you?
2. How do you want to estimate your size?
Note: Commercial/Industrial (LT-III) billing is monthly.
Please enter a value to continue.
₹--
Estimated savings every year
-- kW system
₹--
YOUR BILL NOW
₹--
WITH SOLAR
-- kW
SYSTEM SIZE
-- yrs
PAYS BACK IN
-- sq ft
ROOF AREA NEEDED
₹--
25-YEAR SAVINGS
How we calculated this
Estimate only, based on Tamil Nadu tariff rates and a standard specific yield of 1,550 kWh/kWp/year for inland TN.
Actual system size, cost, and savings are confirmed after a free site survey. Energy charges shown are TNERC-approved,
consumer-payable rates (post state subsidy adjustment) effective 01.07.2025.
Want the exact numbers for your site?
This is an estimate. A free site survey gives you the precise system size, price, and payback — no obligation.