Electricity Bill to Solar Size Calculator
Estimate a practical rooftop solar system size from your monthly electricity bill, with directional cost, subsidy, savings, and payback guidance.
Estimate your solar size from your bill
Monthly bill is the fastest way to estimate solar suitability. Add state, tariff, and user type for a more tailored planning estimate.
Enter your average monthly bill amount in rupees.
Optional. Used to suggest a more realistic tariff baseline if you are not sure about your exact rate.
Use your average blended tariff if known, otherwise keep the default.
Used to softly tune savings and subsidy assumptions.
How we estimated this
- We estimate monthly electricity units by dividing your bill by the tariff you selected or the calculator default.
- We size a solar system based on those units and a monthly generation assumption suitable for India rooftop solar planning.
- We then estimate cost range, subsidy, and payback using shared SolarVishwa assumptions that can be adjusted in admin.
Electricity bill to solar size FAQ
Future FAQs can explain tariff slabs, subsidy rules, rooftop area, load profile, and how to compare actual vendor proposals.
Your solar size estimate
These planning outputs translate your electricity bill into units, system size, generation, cost, subsidy, and simple payback direction.
Approximate monthly units
0 units
Estimated units consumed from bill amount and tariff.
Recommended solar size
0 kW
A practical rooftop solar planning estimate.
Estimated monthly generation
0 units
Expected monthly solar generation under standard assumptions.
Estimated cost range
Rs 0 - Rs 0
Indicative installed system cost range before vendor quotes.
Estimated subsidy
Rs 0
Directional subsidy estimate where residential assumptions apply.
Estimated payback
0 years
Simple payback based on savings and net project cost.
What this means
We estimate monthly electricity consumption from your bill and tariff, then size a solar system using standard rooftop solar generation assumptions for India. Cost, subsidy, and payback are directional planning estimates.
Want real quotes from trusted solar installers?
Use this estimate as your starting point, then compare verified installers for actual sizing, pricing, subsidy support, and rooftop feasibility.
Find Verified Solar InstallersEstimate disclaimer
Calculator outputs are planning estimates only. Actual solar size, generation, tariff slab, subsidy eligibility, and payback vary by roof conditions, city, user profile, and vendor proposal.