power pack
generator
power inverter
load
energiser
energizer
dynamotor
adder
wall wart
distribution transformer
switchboard
step-down transformer
booster
load voltage
switchgear
Black and Decker
power cord
lighting circuit
light circuit
Tesla coil
electric vehicle supply equipment
point
step-up transformer
grid
double adapter
wind turbine
surge protector
spike suppressor
surge suppressor
transformer
rectifier
lightning arrester
spike arrester
converter
electromechanical device
power supply
conductor
tie breaker
resistor
receptacle
doubler
electrical plant
electroblotter
electrical system
electrical device
energy vampire
power source
splitter
electric potential difference
wiring