bill
charge
company
connection
consumption
control
cost
dial
distribution
energy
equipment
fuel
gage
gas
gas meter
gauge
grid
heat
heating
home
horizontal
house
household
industrial
industry
install
measure
measurement
measuring
metal
meter
money
monitor
natural
natural gas
no people
number
pipe
pipeline
plumbing
power
pressure
residential
round
smart
supply
technology
usage
utility