What Size Power Station Do I Need for Home Backup?
Home backup is about keeping essential loads running during an outage — not powering your entire house. This page helps you identify your essential loads, estimate their combined energy use, and size a power station (or expandable system) for your expected outage duration.
For essential home backup (fridge, Wi-Fi, lights, laptop, phone charging) during a typical 8-hour outage, a 1,000–2,000 Wh power station is a common starting point. For 24+ hour outages, consider 2,000–3,000+ Wh or an expandable system with solar recharge. This is only a starter example — your setup may differ.
Calculează dimensiunea exactă
Preconfigurat pentru alimentare de rezervă. Ajustează valorile de mai jos, apoi calculează.
Cerințe tipice de putere
| Specificație | Interval tipic |
|---|---|
| Putere de funcționare (W) | 200–600 W |
| Pornire (surge) | 600–1500 W |
| Scenariu implicit de autonomie | 8h |
Acestea sunt intervale de planificare. Pentru cel mai precis rezultat, verifică eticheta aparatului sau specificația producătorului și introdu puterea reală în calculatorul de mai sus.
Considerente cheie
- Essential loads typically include: refrigerator, Wi-Fi router, LED lights, phone/laptop charging, and optionally a CPAP or medical device. Air conditioning, electric water heaters, and space heaters are NOT practical for portable power stations — they draw too much.
- Simultaneous loads matter: your power station's continuous AC output must handle the sum of everything running at once. A fridge (150 W) + Wi-Fi (15 W) + 3 lights (30 W) + laptop (60 W) = 255 W — well within any mid-size station.
- For extended blackouts (24h+), you need either a large battery (3,000+ Wh) or a smaller battery with solar recharge during the day.
- An expandable system (one that accepts extra battery packs) is a good investment if you live in an area with frequent or long outages.
Exemple de autonomie
About 3.3 hours of running everything simultaneously. With a cycling fridge (50% duty), effective runtime is longer. Good for short outages.
About 6.6 hours of simultaneous running, or roughly 8–10 hours with fridge cycling. A solid choice for most 4–8 hour outages.
Considerente solare
- For multi-day outages, solar is essential. A 400 W solar array can replace the daily energy used by essential loads during daylight hours, effectively extending your backup indefinitely in sunny conditions.
- Position panels before you need them — during an outage is not the time to figure out your solar setup.
Stații de alimentare compatibile
Bazat pe scenariul preconfigurat alimentare de rezervă. Calculează mai sus pentru recomandări adaptate la configurarea ta exactă.
Considerente de cumpărare
- Prioritize continuous AC output that exceeds your simultaneous essential loads (including fridge surge). 600–1,000 W of continuous output is typical for home backup.
- Consider an expandable system if you anticipate longer outages — you can start with 1,000–2,000 Wh and add capacity later.
- A UPS feature (automatic switchover) is valuable if you want the power station to kick in instantly when the grid drops, rather than manually plugging things in.