A net-zero home produces as much energy as it consumes over a year — rooftop solar is usually the biggest lever to get there.
What it takes
- A correctly sized system matched to actual annual consumption.
- Energy-efficient appliances to lower the baseline load.
- Net metering to bank surplus daytime generation.
"Net-zero isn't about maximum panels — it's about matching generation to real usage."
| Home type | Typical system size |
|---|---|
| 2BHK apartment | 2–3 kW |
| Independent house | 4–6 kW |
Getting the size right starts with accurate sizing, and net metering makes the annual math work.