What size power station for a 24-hour outage?

Fridge, Wi-Fi, lights and phones: about 1,717 Wh a day

• 1 × Refrigerator, top freezer, 41.4 W avg × 24 h = 994 Wh
• 1 × Internet gateway (Xfinity XB8), 18 W avg × 24 h = 432 Wh
• 4 × LED bulb, 60 W equivalent (Feit OM60DM), 8.8 W avg × 6 h = 211 Wh
• 2 × Phone charger (Apple 20W USB-C), 20 W avg × 2 h = 80 Wh

Capacity to look for: 2,020 Wh (÷ 85% conversion). Running watts if all on at once: 253 W; with one motor starting: 413 W. Smallest stations we track that cover 24 hours: Jackery Explorer 2000 v2 (store affiliate link), BLUETTI Elite 200 V2 (store affiliate link), Anker SOLIX F3800 Plus (store affiliate link).

Add a CPAP for one night: about 2,166 Wh a day

• 1 × Refrigerator, top freezer, 41.4 W avg × 24 h = 994 Wh
• 1 × Internet gateway (Xfinity XB8), 18 W avg × 24 h = 432 Wh
• 4 × LED bulb, 60 W equivalent (Feit OM60DM), 8.8 W avg × 6 h = 211 Wh
• 2 × Phone charger (Apple 20W USB-C), 20 W avg × 2 h = 80 Wh
• 1 × CPAP (ResMed AirSense 11), 56.1 W avg × 8 h = 449 Wh

Capacity to look for: 2,548 Wh (÷ 85% conversion). Running watts if all on at once: 326 W; with one motor starting: 486 W. Smallest stations we track that cover 24 hours: Anker SOLIX F3800 Plus (store affiliate link), EcoFlow DELTA Pro 3 (store).

Add a chest freezer and a TV: about 2,700 Wh a day

• 1 × Refrigerator, top freezer, 41.4 W avg × 24 h = 994 Wh
• 1 × Chest freezer, 24.9 W avg × 24 h = 598 Wh
• 1 × Internet gateway (Xfinity XB8), 18 W avg × 24 h = 432 Wh
• 4 × LED bulb, 60 W equivalent (Feit OM60DM), 8.8 W avg × 6 h = 211 Wh
• 2 × Phone charger (Apple 20W USB-C), 20 W avg × 2 h = 80 Wh
• 1 × TV, 55 in, 96.5 W avg × 4 h = 386 Wh

Capacity to look for: 3,177 Wh (÷ 85% conversion). Running watts if all on at once: 510 W; with one motor starting: 670 W. Smallest stations we track that cover 24 hours: Anker SOLIX F3800 Plus (store affiliate link), EcoFlow DELTA Pro 3 (store).

Add a window AC for 8 hours: about 5,981 Wh a day

• 1 × Refrigerator, top freezer, 41.4 W avg × 24 h = 994 Wh
• 1 × Internet gateway (Xfinity XB8), 18 W avg × 24 h = 432 Wh
• 4 × LED bulb, 60 W equivalent (Feit OM60DM), 8.8 W avg × 6 h = 211 Wh
• 2 × Phone charger (Apple 20W USB-C), 20 W avg × 2 h = 80 Wh
• 1 × Window AC, 8,000 BTU, 533 W avg × 8 h = 4,264 Wh

Capacity to look for: 7,036 Wh (÷ 85% conversion). Running watts if all on at once: 786 W; with one motor starting: 1,319 W. Smallest stations we track that cover 24 hours: none of the stations we track.

To measure your real loads before buying, search Amazon for a plug-in energy meter affiliate link. These go to Amazon search results, not a product we tested or recommend, and prices are whatever Amazon shows. As an Amazon Associate we earn from qualifying purchases.

Links marked “affiliate link” go through Awin or Impact to that maker’s US store (Jackery, BLUETTI or Anker SOLIX); if you buy, the maker may pay us a commission at no cost to you. It never changes the hours, the checks or which row is shaded. Affiliate disclosure.

Method and limits

Energy per day = average watts × count × hours. Capacity = energy ÷ 85%, Jackery's published conversion factor (see Methods). "Covers 24 hours" also requires the station's continuous AC output to cover the running watts and its surge rating (where listed) to cover one motor starting, at 2× running watts for compressors per Whirlpool and GE guidance. Hours a day are examples. Fridge figures are ENERGY STAR medians for efficient certified models; an older fridge can use much more. For solar top-ups see Solar recharge; for runtimes per station see the runtime chart.

Sources

• Refrigerator, top freezer: Median 363 kWh/yr across 750 ENERGY STAR top-freezer models (middle 80%: 297 to 450 kWh/yr), averaged over 8,760 hours. ENERGY STAR certified-product data (data.energystar.gov), read Oct 18, 2026.
• Chest freezer: Median 218 kWh/yr across 9 ENERGY STAR chest freezers in the dataset (small sample), averaged over 8,760 hours. ENERGY STAR certified-product data (data.energystar.gov), read Oct 18, 2026.
• Internet gateway (Xfinity XB8): 18.00 W ready-state power reported for Comcast CGM4981COM (XB8). CableLabs Energy Reporting, Comcast small network equipment, read Oct 18, 2026.
• LED bulb, 60 W equivalent (Feit OM60DM): 8.8 W rated. Feit Electric OM60DM/927CA product page, read Oct 18, 2026.
• Phone charger (Apple 20W USB-C): 20 W adapter rating, an upper bound; a phone draws less as it fills. Apple 20W USB-C Power Adapter, read Oct 18, 2026.
• CPAP (ResMed AirSense 11): Typical power consumption 56.1 W (111.5 VA). ResMed AirSense 11 user guide, technical specifications, read Oct 18, 2026.
• TV, 55 in: Median on-mode power 96.5 W across 21 ENERGY STAR 55 in TVs (90th percentile 111.5 W). ENERGY STAR certified-product data (data.energystar.gov), read Oct 18, 2026.
• Window AC, 8,000 BTU: 8,000 BTU/h divided by median CEER 15.0 across 91 ENERGY STAR 8,000 BTU models (range 500 to 606 W). ENERGY STAR certified-product data (data.energystar.gov), read Oct 18, 2026.