3 kW vs 5 kW at a glance
| Parameter | 3 kW | 5 kW |
|---|---|---|
| Roof area needed | ~300 sq ft | ~500 sq ft |
| Monthly generation | ~360 units | ~600 units |
| Ideal monthly bill | ₹2,500–3,500 | ₹4,000–6,000 |
| Indicative cost (before subsidy) | ₹1.8–2.1 lakh | ₹3.0–3.5 lakh |
Which one is right for you?
- Choose 3 kW if you have an average home, moderate bill and limited roof area.
- Choose 5 kW if you have a larger home, higher bill, or plan to add AC / EV charging.
- Still unsure? Size it to your last 12 months of electricity usage — we do this during the survey.
Figures are indicative for Gujarat. A free site survey gives you an exact, personalised recommendation.