abuse
ac
alternative
appliance
background
bill
cable
circuit
concept
conservation
conservative
conserve
consumption
convenient
cord
current
danger
dangerous
designated
efficient
electric
electrical
electricity
electronics
energy
environmentalist
expense
fire
green
hazard
innovation
inputs
multiple
outlet
overload
plug
power
protection
protector
renewable
resource
safety
saving
socket
surge
technology
unplugged
unused
volt
voltage