英文關鍵字
bill
billing
british
business
charge
close
company
consumption
cost
current
customer
dial
digits
disc
domestic
economy
electric
electricity
energy
expensive
gas
grid
higher
house
increase
industry
inflation
kilowatt
kwh
measure
measuring
meter
money
national
power
price
prices
reading
rise
rotor
saving
slow
spend
spinning
supplier
supply
technology
turning
utility
voltage
wholesale
ofgem