blue
built
cable
construction
current
danger
day
distribution
electric
electrical
electricity
energetic
energy
engine
engineering
environment
equipment
europe
field
generation
generator
grid
high
horizon
industrial
industry
line
lines
meadow
metal
pillar
plant
power
pylon
silhouette
sky
station
steel
structure
substation
supply
tall
technology
tower
transformer
transmission
voltage
volts
watt
wire