State
How much solar do I need in Alaska?
Alaska averages 3.17 peak sun hours a day, so 1 kW of panels makes about 922 kWh a year. A home using 10 kWh a day needs about 4,206 W of panels.
| Daily use | Panel watts | 400 W panels | Battery for 1 day |
|---|---|---|---|
| 5 kWh/day | 2,103 W | 6 | 6.17 kWh |
| 10 kWh/day | 4,206 W | 11 | 12.35 kWh |
| 20 kWh/day | 8,412 W | 22 | 24.69 kWh |
| 30 kWh/day | 12,618 W | 32 | 37.04 kWh |
Peak sun hours: 3.17; annual output 922 kWh per kW. Source: state table derived from NREL PVWatts v8; check your exact address in NREL PVWatts.
Questions
How many peak sun hours does Alaska get?
3.17 kWh/m²/day on average, from NREL PVWatts v8 data.
How many solar panels for a house in Alaska?
Alaska averages 3.17 peak sun hours a day, so 1 kW of panels makes about 922 kWh a year. A home using 10 kWh a day needs about 4,206 W of panels.