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Solar savings calculator

Is rooftop solar
worth it for you?

Enter your electricity bill. Get your payback period, monthly savings, and government subsidies in seconds. Free, neutral, no signup.

5 countries covered Live tariff data Updated fortnightly
Choose your country
🇮🇳 →
India
All 23 states covered with live DISCOM rates. PM Surya Ghar subsidy included.
PM Surya Ghar ₹78,000 subsidy 124% YoY growth
🇦🇺 →
Australia
STC rebate calculator with state-by-state tariffs.
STC Rebate 1 in 3 homes
🇧🇷 →
Brazil
Net metering calculator for Brazil's fastest growing solar market.
Net metering 40% YoY growth
🇩🇪 →
Germany
KfW subsidy calculator including balcony solar (Balkonkraftwerk).
KfW subsidy Balcony solar
🇯🇵 →
Japan
FIT buyback rates and prefecture-level tariff calculator.
FIT eligible Tokyo mandate
How it works
01
Enter your bill
Your monthly electricity bill is all we need to start.
02
We auto-set tariffs
Live electricity tariff rates are fetched for your region automatically.
03
Get your story
See your new bill, payback period, and 25-year savings instantly.
Why trust EcoStimate
⚡No vendor bias — we don't sell solar 🔄Rates updated every 2 weeks 🔒No data collected, no signup ☀Official tariff sources only