Off-grid solar sizing in Tonga
What a year-round off-grid system costs you in 1 city, sized against the worst month rather than the annual average.
| City | Annual per kW | Worst month | Array for 3 kWh/day | Seasonal swing |
|---|---|---|---|---|
| Nuku‘alofa | 1,456 kWh | June | 1.43 kW | 1.7× |
Panel angles matter as much as panel count. Solar panel angles in Tonga →