Home / Solar calculator

Solar savings calculator

Enter your average monthly electricity bill and see the system size, savings, subsidy and payback period - worked out with the same rates we use in our written proposals.

Your electricity use

Only three details - nothing else is needed for an estimate.

Take the average of the last three months if your bill changes a lot.

No phone number needed to see the estimate. Details are only asked if you want a written quotation.

Recommended for a bill of ₹ 3,000

Residential connection in Bharuch
System size
3 kW
Monthly saving
₹ 2,835
Yearly saving
₹ 34,020
Payback
2.6 years
Project cost
₹ 1,65,000
Govt. subsidy
₹ 78,000
Your net cost
₹ 87,000
25 year saving
₹ 7.65 L
Roof needed
300 sq ft
Panels
6 nos
CO2 saved
3.7 t/yr
Estimate only. Generation is taken at 4.2 units per kW per day and savings at ₹ 7 per unit. The exact figure comes after a free site survey, which also checks shadows, roof strength and your sanctioned load.

Get this as a written quotation

We will do a free site survey and send you a complete proposal for the 3 kW system - bill of material, savings, subsidy and cost.

How the estimate is made

No magic numbers - here is the arithmetic

Units from your bill

Your bill is divided by the tariff of ₹ 7 per unit to get monthly consumption.

Size from units

A kW generates about 4.2 units a day in Gujarat. The system is rounded to the nearest half kW.

Cost and subsidy

Turnkey cost per kW, less the PM Surya Ghar slab your size qualifies for.

Payback

Net cost divided by the yearly saving. Most homes recover their money in 3 to 5 years.