blue
built
cable
conductor
construction
current
danger
distribution
electric
electrical
electricity
energetic
energy
engineering
environment
equipment
generation
generator
grid
high
icon
industrial
industry
line
lines
metal
network
pillar
plant
pole
post
power
pylon
sky
station
steel
structure
substation
supply
tall
technology
tower
transformer
transmission
volt
voltage
watt
wire
wiring