Short answer: For a typical Kathmandu household with NPR 4,000+ monthly bills, a 3 to 5 kW rooftop system pays back in 5 to 8 years on current tariffs and panel prices.
Quick economics.
| Item | Indicative figure |
|---|---|
| 3 kW system installed | NPR 3 to 4.5 lakh |
| Annual generation (Kathmandu) | ~3,800 to 4,500 units |
| Monthly bill reduction (typical use) | NPR 2,500 to 4,500 |
| Payback | 5 to 8 years |
| Panel life | 20 to 25 years |
The exception most miss. Net-metering connection backlogs at NEA can be long. Time the installation with the application — not after.
Did your install come in on time, or did NEA queue you for months?
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