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