appliance
bill
business
charge
circuit
close
counter
data
device
dial
display
electric
electrical
electricity
energy
exterior
family
frame
gage
glass
hour
house
industrial
inspection
instrument
kilowatt
measure
meter
monitor
numbers
outdoor
pay
power
power consumption
rate
reading
readout
spin
supply
technical
technology
test
up
utility
volt
voltage
voltmeter
wall
waste
watt