background
black
cable
conductor
construction
current
danger
distribution
dusk
electric
electrical
electricity
energy
engineering
environment
evening
frame
generation
generator
global
high
industrial
industry
line
metal
network
orange
power
pylon
red
silhouette
sky
station
steel
structure
sun
sunrise
sunset
supply
tall
technology
tension
tower
transformer
transmission
volt
voltage
watt
wire
yellow