Solar savings calculator
See your solar math in seconds.
Pick your segment, set your monthly bill and get a recommended system size, cost, subsidy, savings and payback — tuned for Haryana's sun.
1Who is it for?
2Your average monthly electricity bill
Fine-tune (optional)
The “energy charge” on your DHBVN / UHBVN bill. We've pre-filled a typical rate.
Leave blank if you're not sure — we'll measure it for free.
Your solar estimate
You could save
₹3,405every month
That's 85% off your bill — about ₹40,858 a year.
Solar system size
4 kW
≈ 8 panels · ~400 sq ft of roof
Your investment
₹1.6 L
₹2.4 L − ₹78,000 govt. subsidy
Pays for itself in
3.8 yrs
Then ~21 years of near-free power
View year-by-year table
| Year | Saved that year | Total saved | Net position |
|---|---|---|---|
| 1 | ₹40,858 | ₹40,858 | −₹1.2 L |
| 2 | ₹41,873 | ₹82,731 | −₹79,269 |
| 3 | ₹42,913 | ₹1.3 L | −₹36,356 |
| 4 | ₹43,980 | ₹1.7 L | +₹7,624 |
| 5 | ₹45,073 | ₹2.1 L | +₹52,697 |
| 6 | ₹46,193 | ₹2.6 L | +₹98,889 |
| 7 | ₹47,341 | ₹3.1 L | +₹1.5 L |
| 8 | ₹48,517 | ₹3.6 L | +₹1.9 L |
| 9 | ₹49,723 | ₹4.1 L | +₹2.4 L |
| 10 | ₹50,958 | ₹4.6 L | +₹3 L |
| 11 | ₹52,225 | ₹5.1 L | +₹3.5 L |
| 12 | ₹53,522 | ₹5.6 L | +₹4 L |
| 13 | ₹54,853 | ₹6.2 L | +₹4.6 L |
| 14 | ₹56,216 | ₹6.7 L | +₹5.1 L |
| 15 | ₹57,613 | ₹7.3 L | +₹5.7 L |
| 16 | ₹59,044 | ₹7.9 L | +₹6.3 L |
| 17 | ₹60,511 | ₹8.5 L | +₹6.9 L |
| 18 | ₹62,015 | ₹9.1 L | +₹7.5 L |
| 19 | ₹63,556 | ₹9.8 L | +₹8.1 L |
| 20 | ₹65,136 | ₹10.4 L | +₹8.8 L |
| 21 | ₹66,754 | ₹11.1 L | +₹9.5 L |
| 22 | ₹68,413 | ₹11.8 L | +₹10.2 L |
| 23 | ₹70,113 | ₹12.5 L | +₹10.9 L |
| 24 | ₹71,855 | ₹13.2 L | +₹11.6 L |
| 25 | ₹73,641 | ₹13.9 L | +₹12.3 L |
Cuts about 4.2 tonnes of CO₂ a year — like planting 190 trees.
Indicative estimate for Haryana. Your exact size, cost and savings are confirmed after a free site survey. How we calculate
Assumptions
How we calculate.
Transparent inputs, so you know exactly where the numbers come from.
- Generation
~4 units per kWp per day
Haryana receives ~5.5 kWh/m²/day of irradiance; ~75% performance ratio.
- Energy charge
₹7 home · ₹8.5 business · ₹7.5 industry
Default ₹/unit — change it to match your bill.
- Fixed charges
10% · 15% · 20% of the bill
Fixed / demand charges that solar doesn't offset.
- System cost
₹60,000 · ₹50,000 · ₹42,000 per kWp
Indicative turnkey pricing; lower per kWp above 100 kWp.
- Sizing
90% of your energy units
Avoids over-sizing and unsettled surplus.
- Roof area
100 sq ft per kWp
Shadow-free roof or ground area.
- 25-year view
0.5% degradation · 3% tariff rise per year
Applied to lifetime savings and the payback year.
- Panels
550 Wp per module
Typical Tier-1 module, used for the panel count.
- Emissions
0.716 kg CO₂ per unit
CEA grid emission factor; one tree ≈ 22 kg CO₂ a year.
FAQ
About your estimate.
How accurate is this estimate?
It's a good first approximation for Haryana. Your final design depends on shading, roof orientation and structure, sanctioned load and DISCOM rules — all of which we measure during the free site survey.
Why is the recommended size smaller than my full consumption?
We size for about 90% of your energy units so almost everything you generate is used against your own consumption, which gives the best return under net metering.
Is the subsidy included for businesses?
PM Surya Ghar assistance is for residential systems only. Businesses may instead benefit from accelerated depreciation — please confirm with your chartered accountant.
Free site survey
Turn your estimate into a firm quote.
Book a free site survey and get a personalised solar ROI report within 24 hours. Haryana receives about 5.5 kWh/m²/day of solar irradiance — among the best in India.
Call us
Ambala City, Haryana · Serving Haryana & adjoining regions