background
blue
cable
circuit
crisis
current
danger
distribution
efficiency
electric
electrical
electricity
energy
energy crisis
engineering
environment
equipment
generation
generator
high
industrial
industry
infrastructure
insulator
lack of energy
line
lines
metal
plant
pole
power
pylon
sky
small
station
steel
structure
substation
supply
system
technology
tower
transformer
transmission
volt
voltage
volts
watt
wire