blue
cable
connection
construction
copy space
current
danger
distribution
electric
electrical
electricity
electricity pylon
energetic
energy
engine
environment
equipment
generation
generator
grid
high
industrial
industry
line
metal
no people
outdoors
pillar
pole
power
power line
power supply
pylon
sky
station
steel
structure
substation
sunset
supply
tall
technology
tower
transformer
transmission
volt
voltage
watt
wire