Solar money tools
What solar costs, and what you save.
Four short tools for Tamil Nadu homes, farms, shops, and institutions. Start with your electricity bill.
Use in order: estimate, subsidy, EMI, then net metering.
Enter your monthly bill (or land or roof). You get system size, price, subsidy, and years to recover the money.
Your numbers
Pick who this is for, then enter one figure.
₹
- System size
- 13.3 kWp
- Yearly bill cut
- ₹1,09,325
- System price
- ₹7,33,333
- Pays back in
- 6 yrs
How much solar you likely need
Typical saving on electricity
Before subsidy, if any
When savings cover the net cost
Savings over 25 years
The line is money saved minus what you paid after subsidy. It crosses zero when the system has paid for itself.
Year 1 of 25
Savings in year 1
₹1,09,325
Savings so far
₹1,09,325
Net after investment
−₹5,46,008
Subsidy (guide)
₹78,000
You pay after subsidy
₹6,55,333
Share of list price
11%