Emergency Backup Power for Homeowners

Updated April 2026 · 7 min read

The average American experiences more than 2 power outages per year, with some lasting 2–5 days or longer during severe weather events. Without backup power, those days mean spoiled food, dead devices, no medical equipment, and no way to stay informed.

This guide covers exactly what to prioritize during an outage, how much solar capacity you need, and why a portable solar generator is now the preferred backup solution for most households.

Priority Devices During a Power Outage

How Much Backup Capacity Do You Need?

For a 24-hour basic emergency: CPAP (30W × 8hrs) + lighting (40W × 8hrs) + phone charging (20W × 3hrs) ≈ 620Wh. A 800–1000Wh system handles this comfortably.

For a 48–72 hour outage: Add a compact refrigerator (100W × 8hrs/day × 3 days) ≈ 2,400–3,000Wh total across 3 days. A 2000Wh+ system with daily solar recharging is recommended.

The solar recharging aspect is critical for extended outages. A 200W panel adds 600–800Wh/day on a sunny day — enough to extend your backup window indefinitely if you manage consumption carefully.

Why Solar Over Gas for Emergency Backup

• Solar is silent — use it in any room without CO risk
• No fuel storage needed — no garage full of gas cans
• Can be recharged indefinitely from the sun
• Instantly available when the grid drops — no startup
• Safe for medical equipment sensitive to power fluctuations (clean sine wave inverter)