appliance
background
banknote
bill
black
budget
business
cable
cash
coins
concept
connection
consumption
cord
cost
costs
crisis
currency
debt
economy
electric
electrical
electricity
energy
euro
europe
european
expense
expensive
finance
financial
heating
increase
industry
light
many
money
pay
payment
plug
power
price
rise
save
saving
savings
socket
technology
union
wire