Backup power: Cottage with a 1 HP well pump, 3 days
Energy is modest; the pump's start-up surge sets the inverter size. Solar panels make 3 days realistic.
What is included
| W | h | Wh | |
|---|---|---|---|
| Well pump 1 HP | 1500 | 1 | 1500 |
| Refrigerator (with freezer) | 120 | 24 | 1008 |
| LED lighting (5 bulbs) | 40 | 5 | 200 |
| Wi-Fi router + modem/ONU | 12 | 24 | 288 |
| Smartphone charging | 15 | 2 | 30 |
Your numbers
Energy per outage
9078 Wh
3026 Wh per day
Peak power
4187 W
1687 W
Battery needed
13755 Wh
Solar to recharge daily (winter)
2018 W
Three setups
Autonomy
Expandable system + solar or generator
FranklinWH aPower S
15000 Wh · 11500 W (15000 W peak)
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