blue
cable
capacitor
city
communicate
communication
conductor
connect
converter
current
danger
dioxide
distribute
distribution
electric
electricity
energy
engineering
equipment
industrial
industry
insulator
isolator
line
network
outage
pillar
pole
post
power
pylon
road
routing
sky
space
supply
system
tall
technology
telegraph
transformer
transmission
up
urban
utility
volt
voltage
wattage
watts
wire