alternating
black
blue
cable
clouds
construction
current
danger
electric
electrical
electricity
energy
engineering
equipment
generator
grass
green
grid
high
horizon
industrial
industry
line
metal
plant
pole
power
powerline
rays
riot
sky
station
steel
structure
substation
sun
sunlight
sunrise
sunset
supply
tall
technology
tower
transformer
transmission
tree
voltage
watts
wire
wired