Free tool · works on your phone
Drop your bill. See your solar.
Formulas & assumptions
Everything the numbers depend on, in the open. You can change the energy rate and roof area in the tool.
System size (kW)
monthly units ÷ 122
Yearly generation
kW × 1,459 units
Yearly savings
min(generation, use) × rate + surplus × export rate
Home subsidy
₹30,000 × first 2 kW + ₹18,000 × 3rd kW (max ₹78,000)
Payback
years until cumulative savings ≥ price − subsidy
CO₂ avoided
units × 0.71 kg
| Generation per kW (Indore) | 122 units/month · 1,459 units/year |
|---|---|
| Energy rate (editable) | Home ₹7.5 · Business ₹9 · Industry ₹8 per unit |
| Value of surplus exported | ₹3/unit (conservative) |
| Tariff escalation | 3% per year |
| Module degradation | 0.5% per year |
| Roof area per kW | 90 sq ft |
| Module size | 545 W |
| Elevated structure | +₹8,000–15,000 per kW |
| Loan rate | 7.000000000000001% up to 3 kW (home), 9.5% otherwise |
| Grid emission factor | 0.71 kg CO₂/kWh (CEA baseline, rounded) |
| CO₂ per tree | 21 kg/year |
Your privacy: bills are read with PDF.js and Tesseract OCR inside your browser. The file is never uploaded to Genius Solar Services or anyone else. Only what you choose to send on WhatsApp reaches us.
Sizing & savings questions
How much can I save with solar in Indore?
Each kW of solar in Indore generates about 4 units a day, or roughly 1,450 units a year. At an effective tariff of ₹7–8 per unit, that is ₹10,000–₹11,500 of savings per kW per year. A 3 kW home system typically saves about ₹2,700 a month.
What is the payback period of solar panels in Indore?
For homes that use most of what they generate, payback is typically 3–5 years after the PM Surya Ghar subsidy. For businesses on commercial or industrial tariffs it is often 3–4 years even without subsidy. After payback, the system continues producing for another 20 years or more.
What size solar system do I need for my home?
Divide your average monthly units by about 120 (what 1 kW generates per month in Indore). A home using 360 units a month needs about 3 kW; 600 units needs about 5 kW. Our calculator reads your bill and does this for you.
Can I buy solar on EMI or with a loan?
Yes. Under PM Surya Ghar, public-sector banks offer collateral-free loans for home systems up to 3 kW at concessional interest (around 7%). For larger systems, banks offer solar loans at regular rates. We help with the paperwork.
Is it better to pay cash or take a solar loan?
If the EMI is lower than your monthly savings, a loan lets solar pay for itself from day one. Paying cash gives the highest lifetime return. Our calculator shows both the EMI and the monthly savings so you can compare.
Keep reading
- GuidesHow Much Solar Do I Need? Sizing Guide for IndoreWork out the right solar system size for your Indore home or business from your electricity bill: units per month, kW needed, roof area, panels and savings — with worked examples.
- GuidesHow to Read Your MP Electricity Bill for SolarFind units consumed, sanctioned load, connection type and charges on an MP West Discom (MPPKVVCL) electricity bill — and use them to size a solar system.
- System sizesSolar Systems by SizeCompare rooftop solar systems from 1 kW to 100 kW in Indore — generation, roof space, panels, price after subsidy, savings and payback for each size.
- ToolsIs My Roof Suitable for Solar? Free 5-Question Check (Indore)Answer five quick questions about your roof — space, shade, direction, condition and connection — and get an instant solar suitability verdict for your Indore property.
Free survey · No obligation
Your roof is already earning. Start collecting.
Tell us a little about your property. An engineer calls back, books a free site survey and sends a clear, itemised quote.