Solar savings calculator
How much will rooftop solar save you?
Enter your monthly electricity bill or the roof area you have. See the system size you need, what it costs after subsidy, and how soon it pays for itself.
Adjust electricity rate
Divide your bill amount by the units billed. We start from a typical rate for your state.
- Monthly generation
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- Monthly saving
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- System cost
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- PM Surya Ghar subsidy
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- Odisha state subsidy
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- Your cost after subsidy
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- Pays for itself in
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- Saving over 25 years
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Avoids about – of CO₂ a year, like planting –.
Get an exact quote for this systemAn estimate, not a quotation. It assumes about 4 units a day from every kW of panels and today's subsidy rules (November 2026). The final size, price and subsidy are confirmed after a free site survey.
Behind the numbers
How we estimate your savings
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Generation
In Odisha and West Bengal every kW of panels produces about 4 units a day on average across the year, about 120 units a month.
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Roof space
Each kW needs about 100 sq ft of shadow-free roof. Water tanks, stairs and parapet shadows reduce the usable area.
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Savings
Units you no longer buy, at your rate per unit. Over 25 years we assume tariffs rise 3% a year and panels lose 0.5% output a year.
Free site survey & quotation
Ready to cut your electricity bill?
Share a few details and our solar advisor will call you, usually the same day. The survey and quotation are free and come with no obligation.
- Call us+91 98277 58879
- WhatsAppChat with an advisor
- Emailadminmacroweb.in
- Office hoursMon – Sat, 10:00 AM – 7:00 PM