black
blue
built
cable
danger
distribution
electric
electrical
electricity
energy
engineering
environment
equipment
frame
generation
generator
grid
high
industrial
industry
infrastructure
insulation
insulators
isolator
line
lines
metal
plant
pole
pollution
power
pylon
silhouette
sky
station
steel
structure
substation
supply
tall
technology
tension
tower
transformer
transmission
volt
voltage
volts
watt
wire