background
blue
cable
clouds
construction
danger
dark
distribution
dusk
electric
electrical
electricity
energy
engineering
environment
evening
field
high
high voltage
industrial
industry
infrastructure
landscape
light
line
metal
nature
network
night
orange
outdoor
plant
pole
power
power line
pylon
silhouette
sky
steel
structure
sun
sunset
supply
tall
technology
tower
transmission
volt
voltage
wire