alternative
blue
cable
circuit
connection
consumer
control
current
danger
dangerous
distribution
efficiency
electric
electrical
electricity
energy
engine
engineering
environment
equipment
facility
gas
generation
generator
grid
high
industrial
industry
insulator
line
metal
plant
pole
power
power supply
sky
station
steel
structure
substation
supply
system
technology
tower
transformer
transmission
utility
voltage
volts
wire