backlight
cable
conductor
connection
dawn
daylight
distribution
electric
electrical
electricity
energetic
energy
engineer
equipment
eve
generator
grid
high
hydroelectric
industrial
industry
light
line
manufacturing
metal
network
nightfall
orange
power
power plant
powerful
silhouette
sky
steel
structure
sundown
sunrise
sunset
supply
system
technical
technology
tension
tower
transfer
transmission
volt
voltage
watt
wire