main power
- electricityEnergy from charged particles
- gridFramework of intersecting lines
- generatorElectricity-producing machine
- supplyFurnish or stock
- currentDirected flow of charge
voltage · outlet · switch · central · primary · source · energy · utility · transformer · circuit · wattage · backup · station · plant · dominance · authority · control · strength
power source hierarchy
main powerbackup power
Secondary electrical source
auxiliary power · emergency power · standby power · battery backup · UPS
power state
main powerpower failure
Loss of electrical service
power outage · blackout · power loss · power down · grid failure