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Solar for a 2 BHK home: why 3 kW
A plain guide for a 2 BHK home in Pondicherry or Tamil Nadu. Short answer: start at 3 kW. It gets the full subsidy and covers today's use plus one more AC.
Short answer
We install 3 kW, 4 kW and 5 kW. For a 2 BHK home, 3 kW is the right start: it gets the full central subsidy of ₹78,000 (plus ₹30,000 in Puducherry or ₹22,000 in Tamil Nadu), and it leaves room for one more AC. Homes with 2 ACs running daily are better on 4 kW.
What runs on 3 kW vs 4 kW
| Appliances | 3 kW | 4 kW |
|---|---|---|
| Fans, lights, TV, fridge | Yes | Yes |
| 1 AC, washing machine | Yes | Yes |
| 2 ACs used daily | Tight | Yes |
| Water pump, geyser | Yes | Yes |
Price for a 2 BHK home
| Package | Price | Subsidy (Puducherry) | You pay |
|---|---|---|---|
| Smart 3 kW | ₹1,89,000 | ₹1,08,000 | About ₹81,000 |
| Smart 4 kW | ₹2,42,000 | ₹1,08,000 | About ₹1,34,000 |
In Tamil Nadu the total subsidy is up to ₹1,00,000 for 3 kW and above, for eligible homes. Book with ₹9,999; the rest can be an EMI about your EB bill.
Roof and bill checklist for 2 BHK
- Shade-free roof of about 300 sq ft for 3 kW, 400 sq ft for 4 kW.
- EB connection in a name you can prove; the subsidy is paid to that account.
- A photo of your EB bill (both sides). WhatsApp it to us and we reply with the right size in minutes.
Questions people ask
Is 3 kW right for a 2 BHK with 1 AC?
Yes. It covers fans, lights, a TV, a fridge, a washing machine and 1 AC, with room for one more AC later. It also gets the full subsidy.
Why is 3 kW the sweet spot?
The central PM Surya Ghar subsidy is capped at ₹78,000, which is reached at 3 kW. The Puducherry top-up (₹30,000) and the Tamil Nadu top-up (₹22,000) also reach their maximum at 3 kW. So 3 kW is the best price per kW after subsidy.
How much will I save every month on a 3 kW system?
A 3 kW system makes about 375 units a month in this region. A Tamil Nadu home using 600+ units a month saves up to about ₹4,000 a month; in Puducherry, where power is cheaper, about ₹2,900. We give you your exact figure in writing.
Talk to a person, not a call centre.
Send a photo of your EB bill on WhatsApp and we reply with the right system size, your subsidy and your EMI. We reply within 5 minutes, 8 am – 8 pm, every day.