blue
built
cable
current
danger
distribution
electric
electrical
electricity
energetic
energy
engine
engineering
environment
equipment
fir
forest
generation
generator
grid
high
highvoltage
industrial
industry
line
metal
nature
nobody
photo
plant
pole
pollution
power
powerful
pylon
sky
station
steel
structure
supply
tall
technology
tower
transmission
tree
vertical
volt
voltage
watt
wire