High angle view of a huge power plant producing lots of smoke
Low angle view of electricity pylon against sky during sunset
Smoke emitting from factory against sky during sunset
Close-up of pipes
Illuminated bridge over river against sky at night
View of factory against sky
Rear view of male engineer with arms akimbo looking at solar panels in field
Low angle view of building against clear blue sky
Businessman standing with colleague on staircase at power station
Illuminated cityscape against sky at night
High angle cityscape of frankfurt am main with st. pauls church and european central bank
Low angle view of smoke stack against sky
Senior female entrepreneur pointing by engineer standing near solar panels in field
Thoughtful man with hands in pockets standing by solar panels
Low angle view of building against blue sky
Mature man touching solar panels in garden on sunny day
High angle view of road leading towards hoover dam on colorado river
Scenic view of sea against clear blue sky
Man in boat in sea against blue sky
Scenic view of sea and mountains against sky
Highway and power station at dusk seen in berlin, germany
High angle view of dam against sky
Low angle view of windmill against clear blue sky
Panoramic view of dam against sky
High angle view of dam
Low angle view of buildings against sky
Illuminated petrochemical plant against sky at night
Wind farm and solar power station in lachtal during autumn
Long exposure of petrochemical plant view at night
Bridge over river by buildings in city against sky
Worker with measuring device checking solar plant in the evening
Smoke emitting in industry
Reflection of factory in lake against sky during sunset
Sunset view over a german city with wind turbines, landscape format
Illuminated bridge over sea against sky at night , penang second bridge
Young male engineer holding drill while examining solar panels at power station
Businesswoman with digital tablet looking up while standing with colleague in industry
Businesswoman using tablet pc in front of solar panels
Low angle view of chimney against clear blue sky
Young man smoking pipe
Young female engineer with smart phone examining solar panels
Hand of female engineer installing solar panels with drill while working at power station
High angle view of hoover dam on colorado river
Scenic view of landscape and dam against sky during sunset
High angle view of factory against sky during sunset
Illuminated factory against sky at night
Full frame shot of factory
Power station and highway at night seen in berlin, germany
Grassy field against factory during sunset
France, vaucluse, hydroelectric power station on rhone river
Low angle view of snowcapped mountains against sky
Hoover dam
Hands of woman driving car at wind park
Low angle view of battersea power station against sky
Scenic view of river and mountains against sky
Rear view of male maintenance engineer looking at solar panels in field
High angle view of hoover dam on sunny day
Scenic view of snowcapped mountains against sky
Scenic view of lake and mountains against sky
Low angle view of factory against sky
Engineers discussing about solar panels on sunny day
Smoke spews out of a chimney at an industrial plant
Low angle view of electricity pylon against cloudy sky
Low angle view of house roof against sky
View from drachenberg in berlin
Hydroelectric power plant, with an installed generation.
Smoke emitting from factories against cloudy sky
Low angle view of smoke stacks against sky
Young female engineer wearing hardhat using tablet pc in front of solar panels
Man taking selfie near wind turbines at sunset
Smoke emitting from factory against sky during winter
Pipes at dam
Young male engineer photographing solar panels through smart phone at power station
High angle view of factory by sea against sky
Male and female colleagues having discussion while standing in industry
Cheerful mother spinning daughter in front of wind turbines
Technicians with laptop discussing on solar panels
Scenic view of river against mountain range
Scenic view of landscape against sky during sunset
Sea by buildings against sky during sunset
Young male maintenance engineer holding drill while walking amidst solar panels at power station
Scenic view of river by dam against sky
Scenic view of dam against sky
Side view of male engineer drilling on solar panels while working at power station
High angle view of illuminated factory against sky at night
Reflection of buildings in lake
Side view of male maintenance engineer drilling on solar panels while working at power station
Aerial view of illuminated buildings at night
Low angle view of smoke stacks against blue sky
Female engineer showing solar panels to senior entrepreneur during visit at power station
Low angle view of building against sky
Bridge over river
High angle view of solar panels against cloudy sky