Solar calculator
Enter your monthly bill to see a system size, the energy charges it could offset and your subsidy in Punjab, Haryana, Himachal and Chandigarh.
Calculator
For a ₹4,000 monthly bill, about 4.5 kW. It could make about 540 units a month and offset up to ₹4,000 a month of energy charges. Subsidy about ₹78,000.
4.5kW
Covers about 100% of the units you use.
Units in a month and roof
- You use
- 533 units
- Solar could make
- 540 units
- Roof area needed
- 450 sq ft
Energy charges offset, up to
- A month
- ₹4,000
- A year
- ₹48,000
Upper bound: your bill also carries fixed and meter charges that solar does not remove.
Subsidy and price
PM Surya Ghar subsidy, about₹78,000
Your price is itemised after a site survey: modules, inverter, structure, cables and labour, line by line. We do not guess it here.
- You still pay PSPCL fixed and meter charges after solar.
- Punjab's free-units scheme for homes is not included in this estimate.
- An estimate, not a quote. A site survey sets the real size and price.
How the numbers are worked out
Every figure above comes from the assumptions below. None of them is a measurement of your roof.
- Yield
- 120 units per kW a month About 4 units per kW a day, assumed for rooftop plants in every region we serve, hill sites included. Real output moves with season, shade, tilt and dust.
- Tariff
- ₹8 per unit, for homes and businesses Starting values only. Type your own rate from your bill. It turns your bill into units used. Your bill also carries fixed and meter charges, which solar does not remove, so the unit count is approximate and the result is an upper bound.
- Energy charges offset
- Units the plant makes, up to the units you use, at your tariff Upper bound: your bill also carries fixed and meter charges that solar does not remove. It is not the saving on your bill.
- PM Surya Ghar subsidy
- ₹30,000 per kW for the first 2 kW, ₹18,000 for the 3rd kW, capped at ₹78,000 Homes only. Himachal Pradesh is a special-category state with higher amounts: ₹33,000 per kW for the first 2 kW, ₹19,800 for the 3rd kW, capped at ₹85,800. It needs DCR modules and an application on the national portal. Check the current rules before you decide. pmsuryaghar.gov.in
- Roof area
- 100 sq ft of shade-free roof per kW If you enter your usable area, we warn you when the suggested size will not fit.
- Size limits
- Up to 10 kW for homes, 500 kW for businesses Bigger loads need a site survey and a proper design.
- State
- PSPCL for Punjab, UHBVN or DHBVN for Haryana, HPSEBL for Himachal, CPDL for Chandigarh The state switch changes the DISCOM named in the help text and the notes beside your result, and the subsidy for Himachal Pradesh. The size and energy sums are identical in every region because yield and tariff figures are not separately verified for each.
Let's put your roof to work.
We survey roofs across Punjab, Haryana, Himachal Pradesh and Chandigarh from Ludhiana. You get an itemised quote, a 3D layout and a clear path through subsidy and net metering.
Jalandhar Bypass, Ludhiana 141088 info@wesicsenergies.com