blue
cable
cloud
colourful
communication
conductor
connect
danger
distance
distribution
electric
electrical
electricity
energy
engineering
equipment
evening
field
fuel and power generation
generation
generator
green
grid
ground
high
horizontal
industrial
industry
line
meadow
metal
pole
pollution
post
power
power line
power supply
sky
steel
structure
substation
supply
support
tall
technology
tower
transmission
vintage
voltage
wire