0%
Panel count follows your bill, not the size of the house. Here is the arithmetic.
Image: Rooftop Solar panels on homes in Mehsana, Gujarat, India (30891) by Nizil Shah, CC BY-SA 4.0, via Wikimedia Commons.
People often ask how many panels a 3BHK home needs. The honest answer is: it depends on your electricity use. This guide to solar in Raipur shows the quick sums.
Quick answer: a family using 350 to 400 units a month typically needs a 3 kW system, which is about six to seven modern panels and 30 to 35 square metres of roof.
| Monthly units | System size | Panels (approx. 500 W) | Roof area |
|---|---|---|---|
| 150 | 1.5 kW | 3 | 15 sq m |
| 250 | 2 kW | 4 | 20 sq m |
| 375 | 3 kW | 6 | 30 sq m |
| 600 | 5 kW | 10 | 50 sq m |
Total twelve months of units, divide by twelve and match the nearest row. If your use is seasonal, size for the average, not the peak month. Our kW vs kWh vs kWp article explains the conversion.
A free survey will convert these estimates into a layout for your roof. See solar for home in Raipur.
Two 3BHK flats on the same street can use very different power. One family runs three air conditioners for ten hours; another uses fans and a single AC for two hours. The first may need 5 kW, the second 2 kW. This is why a sizing guess based on house type often leads to oversized or undersized systems. Use your bills, not your bedroom count.
| Household pattern | Typical monthly units | Likely system |
|---|---|---|
| Fans, lights, one AC for 2 hours | 150 - 250 | 1.5 - 2 kW |
| Two ACs, geyser, pump | 300 - 450 | 3 kW |
| Three or more ACs, EV | 500 - 700 | 5 kW |
Modern modules range from 400 to 600 watts. A 3 kW system might use six 500 W panels or eight 400 W panels. Fewer, larger panels need less roof space and fewer clamps but weigh more each. Ask the installer for the exact model and dimensions so you can check fit on your roof.
Size from bills, then check the roof. For a method to compare providers, see how to build your own list of the top 10 solar companies in Raipur. If you are choosing a provider, start with a solar company in Raipur that is registered for the scheme, and compare it using the best solar company in Raipur questions. For subsidy, see PM Surya Ghar Yojna in Raipur and our solar subsidy in Raipur help. Our solar installation in Raipur crews work across the city, the solar in Raipur guide covers costs and the solar Raipur guide covers neighbourhoods. Browse the full blog for more.
About 6 to 7 modules of 450 to 550 W each.
Roughly 30 to 35 square metres of shadow-free space.
Only if your monthly use is around 350 to 400 units.
Yes; a smaller system still reduces the bill.
Heavy air conditioning increases units used, so size from your bills.
Visit C-29, Sector 3, Devendra Nagar, Raipur, Chhattisgarh 492001, call 083051 31420 or send your details online for a free survey and a written quotation, with the subsidy worked out. Our solar installation in Raipur team replies the same working day.
Looking for the best solar company in Raipur? See how solar in Raipur works, check the solar Raipur locality guide and book solar installation in Raipur with a trusted solar company in Raipur. Our checklist for the best solar company in Raipur shows what to ask. Want help with solar subsidy in Raipur or PM Surya Ghar Yojna in Raipur? Our team handles the whole file. Quick links: solar in Raipur, best solar in Raipur, solar subsidy in Raipur, solar panel price in Raipur and solar street light in Raipur. Browse every article on the solar blog, or see our solar services.