american
appliance
background
bank
banking
banknote
battery
bill
business
cable
cash
concept
connection
consuming
consumption
cost
currency
device
dollar
economy
electric
electrical
electricity
energy
equipment
expenses
finance
financial
growth
idea
investment
light
line
money
overload
paper
payment
plug
power
price
prices
saving
savings
security
socket
technology
voltage
white
wire
wired