Solar Savings Calculator
Estimate the solar system size, annual generation, savings potential and indicative payback for your property. No contact details required — nothing is submitted until you choose to ask for a proposal.
Estimate Your System Size, Savings and Payback
Enter your monthly bill. Everything runs in your browser — nothing is submitted.
Your Indicative Solar Estimate
Enter your monthly electricity bill to see an indicative system size, generation and savings estimate. Nothing is submitted and no contact details are needed.
- Recommended system size
- Estimated annual generation
- Estimated savings potential
- Indicative cost, payback and roof area
- Residential subsidy information, where applicable
Estimated calculation only. Final system design and financial proposal depend on site assessment, electricity tariff, location, shadow analysis, system configuration and other factors.
How This Estimate Is Calculated
We would rather show you the assumptions than hide them behind a number.
| Assumption | Value Used | Why It Varies |
|---|---|---|
| Generation per kW | ~1,450 units per kW per year | Depends on location irradiation, tilt, orientation, shading, temperature and soiling. |
| Default tariff | ₹8.00 residential, ₹9.50 commercial, ₹8.50 industrial per unit | Tariffs are set by state regulators and are slab-based. Entering your units lets the tool use your real average tariff instead. |
| Installed cost | ₹55,000–₹70,000 per kW residential; lower per kW at larger scale | Varies with module and inverter selection, structure height, roof type, cable runs and market pricing. |
| Roof area | ~100 sq ft per kW residential; ~80–90 sq ft per kW at scale | Depends on module wattage, row spacing needed to avoid self-shading, and roof obstructions. |
| Residential subsidy | Up to ₹30,000 / ₹60,000 / ₹78,000 by capacity | PM Surya Ghar central assistance, for eligible residential consumers only, subject to scheme rules. |
| Payback | Simple payback: net cost ÷ first-year savings | Ignores tariff escalation, financing cost, degradation and maintenance — so treat it as indicative only. |
Estimated calculation. Final system design and financial proposal depend on site assessment, electricity tariff, location, shadow analysis, roof structure, system configuration, applicable DISCOM policy and other factors. Nothing on this page is a quotation or an offer.
Turn an Estimate Into a Real Proposal
A calculator works from averages. A proposal works from your roof, your bills and your DISCOM. Send us both and we will do the second one properly.
Ready to Reduce Your Electricity Bills?
Speak to the RIJARA ENERGY team for a free consultation and a solar plan sized around your actual electricity usage.