birdhouse
blue
cable
concrete
construction
current
danger
day
distribution
electric
electrical
electricity
energetic
energy
engineering
environment
high
industrial
industry
infrastructure
insulation
line
network
old
perspective
pillar
plant
pole
pollution
post
power
powerline
pylon
row
sky
structure
supply
system
tall
technology
tension
tower
transformer
transmission
volt
voltage
watt
wire