Solar cost and savings calculator for Kerala
Enter your monthly KSEB bill. You get the system size, installed cost, PM Surya Ghar subsidy, what you pay, your savings and the payback period.
Your fixed-charges-only system in 10 seconds
Recommended5.5 kW
Bill after solar₹230/mo
Payback5.3 yrs
- Panels
- 11 × 540 Wp
- Roof needed
- ~495 sq ft
- Gross cost
- ₹3.52 L
- PM Surya Ghar subsidy
- ₹78,000
- Net cost
- ₹2.74 L
- Projected 25-year savings
- ₹17.47 L
- CO₂ avoided
- 5.5 t / yr
*Energy charges reduced to zero where rooftop space allows a system sized to full consumption; KSEB fixed charges continue to apply.
Estimates use tariff, cost and yield assumptions (last verified 2026-10-07); final design follows a site survey. Projected savings include tariff escalation and panel degradation, but exclude maintenance, component replacement and financing costs. They are not investment profit.
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