blue
chimney
cogeneration
discharge
duct
ecology
electric
electrical
electricity
emission
energy
environment
europe
factory
heat
heater
horizon
industrial
industry
kiev
kyiv
landmark
landscape
line
network
outlook
pipe
plant
pollute
pollution
power
production
pylon
sky
smoke
smokestack
stack
stalk
station
supply
technology
thermal
transmission
tube
ukraine
urban
view
warming
wire