Tripura rooftop solar and net metering calculator
What would rooftop solar do to your Tripura bill? Enter your use and system size to see the bill with net metering, the PM Surya Ghar subsidy and the payback.
- Tripura’s own net metering rules
- PM Surya Ghar subsidy built in
- Bill run through the current tariff
Enter your units to see the bill.
Tripura net metering rules
- Individual net metering is allowed from 1 kWp to 10 kWp, capped at the contracted load or demand (TERC Rooftop Regulation 2024, First Amendment 2025, reg. 5.3). Source
- If a home imports more than it exports in a month, it pays for the net units at the normal retail tariff (reg. 16.5). Source
- If a home exports more than 100 units above its use, TSECL pays for the excess each quarter at the feed-in tariff. Credits below 100 units carry to the next bill (reg. 16.5). Source
- Generation counted for a home is capped at an average of 3.8 units per kW of approved capacity a day (reg. 16.5). Source
- For homes, the feed-in tariff is 35% of the Average Cost of Supply for the year the system is commissioned (reg. 8.1(a)). Source
- TERC's Average Cost of Supply for 2026-27 is ₹8.90 a unit (Tariff Order for TSECL FY 2026-27, Table 7-2, para 7.1.14). Source
- TSECL pays for surplus above 100 units each quarter, and smaller credits carry forward. The calculator settles each month, so treat the surplus figure as an estimate.
Default generation of 100 units per kW a month: the Union Cabinet's PM Surya Ghar note says a 3 kW system 'will be able to generate more than 300 units a month on an average'. Source
PM Surya Ghar central subsidy: ₹30,000 a kW for the first 2 kW and ₹18,000 for the third kW, no more above 3 kW (₹78,000 at most). Grid-connected homes only, domestic-made modules, once per home. MNRE benchmark cost ₹50,000 a kW up to 2 kW and ₹45,000 a kW above. Scheme runs to 31 March 2027. MNRE guidelines
Tripura is a special category State: the subsidy is ₹33,000 a kW for the first 2 kW and ₹19,800 for the third kW (₹85,800 at most). The calculator uses these rates. See the PM Surya Ghar subsidy calculator.
Rooftop solar questions
How does net metering work?
A two-way meter records what you draw from the grid and what your panels send to it. On each bill the units you exported are taken off the units you imported, and you pay for the net units at the normal tariff. What happens to extra units depends on the state: some buy them every month, others carry them forward and settle at the end of the year.
How much does a 1 kW rooftop system generate?
The Union Cabinet’s note on PM Surya Ghar says a 3 kW system makes over 300 units a month on average, about 100 units per kW. MNRE says 1 kW can make 4 to 5.5 units on a clear sunny day. Your roof’s direction, shade and dust change this, so you can edit the figure.
How much is the PM Surya Ghar subsidy?
For homes: ₹30,000 a kW for the first 2 kW and ₹18,000 for the third kW, so ₹78,000 for 3 kW or more. Higher amounts apply in special-category states. The system must be grid-connected and use domestically made modules, and a home can get it only once. The scheme runs until 31 March 2027.
Do I still pay a fixed charge with solar?
Yes. In every state covered here, fixed charges and government levies stay payable whatever your solar credits.