UPS and power

Buying guide

This group is about keeping things running when the power goes off. A UPS gives a computer or server time to shut down properly or to wait for a generator to start; its battery wears out and needs replacing separately every three to five years. A solar power system has four parts: the panel generates electricity, the inverter converts it to alternating current, the controller manages charging, and the battery stores the energy. The inverter's rating must exceed the combined power of the devices that will run at the same time. Electrical protection devices are here too.