blue
built
cable
cloudy
current
danger
distribution
electric
electrical
electricity
energetic
energy
engine
engineering
environment
equipment
evening
frame
generation
generator
grass
grid
high
industrial
industry
line
metal
plant
pole
pollution
power
powerful
pylon
silhouette
sky
station
steel
structure
supply
tall
technology
tower
transmission
utility
volt
voltage
watt
wire