Build a 24x7 Self-Reliant Backup Power System at Home

A practical plan to build it

Andrew Zhu
8 min readNov 26, 2024

On November 19, 2024, an unexpected “bomb cyclone” storm swept through the Seattle area, causing an unprecedented power outage that affected nearly 80% of residents in the Puget Sound region — home to tech giants Microsoft and Amazon. While the lights remained on in Seattle and Bellevue, a stark contrast was visible from the darkened east side uphill, where 80% of the surrounding areas, including my own home, were plunged into darkness.

However, the lack of electricity was not an insurmountable challenge. I made a trip to Costco and purchased a pack of AA batteries. With these, I utilized my child’s electronic toy kit’s battery case to construct two AA battery-powered LED lights. These innovative makeshift lamps provided us with illumination for three nights, eliminating the need for candles. Candles, while a common go-to during power outages, can pose a safety risk and do not provide sufficient light, especially with children running and playing around the house.

LED light powered with 4 AA batteries

While we still had access to hot water and gas, making daily life relatively manageable, my 24x7 server racks were entirely offline. After the power was restored, I decided to create a reliable backup power system. This system would keep my servers and internet operational for at least several…

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Andrew Zhu
Andrew Zhu

Written by Andrew Zhu

Working on AI stuffs | a HF Diffusers contributor | a ex-Data Scientist@MS | His LinkedIn is www.linkedin.com/in/andrew-zhu-23407223/

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