2448 results for: energy efficiency

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Solar panels on the roof of a house, energy efficiency classes according to the GEG, Hilden,

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Solar panels on the roof of a house, energy effici...

15/09/2023, Berlin, Germany, Europe, German climate protection activist Luisa Neubauer during her

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15/09/2023, Berlin, Germany, Europe, German climat...

Power bank loads tablet PC, smartphone, isolated on wooden background. charging concept. free

BRK25H00_468

Power bank loads tablet PC, smartphone, isolated o...

Map of industry, German Empire, 1894, Karte der Industrie, Bergwerke und Hütten im Deutschen Reich,

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Map of industry, German Empire, 1894, Karte der In...

High-voltage pylon, electricity prices

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High-voltage pylon, electricity prices

Zip fastener 115

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Zip fastener 115

Darkening

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Darkening

Solar system, an inverter displays the current solar power yield

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Solar system, an inverter displays the current sol...

Evening atmosphere at Cologne Cathedral, Hohenzollern Bridge, Cologne, North Rhine-Westphalia,

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Evening atmosphere at Cologne Cathedral, Hohenzoll...

A man wearing protective breathing equipment is viewed closeup, inspecting signs of mold and mildew

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A man wearing protective breathing equipment is vi...

Several innovative wind turbines of different sizes on a barren field behind an old tree in the

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Several innovative wind turbines of different size...

Cologne Cathedral in the evening with Hohenzollern Bridge, railway bridge over the Rhine. Sunset on

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Cologne Cathedral in the evening with Hohenzollern...

An indoor environmental quality assessor is viewed up-close, working beneath timber floor joists

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An indoor environmental quality assessor is viewed...

Green power plugon a keyboard isolated on white background

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Green power plugon a keyboard isolated on white ba...

Solarpark, Luftbild

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Solarpark, Luftbild

Balcony power station on a house in Düsseldorf, Germany

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Balcony power station on a house in Düsseldorf, Ge...

Symbolic image on the topic of price brakes, electricity price brakes, gas brakes, price caps

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Symbolic image on the topic of price brakes, elect...

Energy efficiency classes, heat pumps on the garage roof of a detached house in Hilden, Germany,

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Energy efficiency classes, heat pumps on the garag...

Light source

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Light source

Symbolic image of heat pumps instead of oil and gas heating systems

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Symbolic image of heat pumps instead of oil and ga...

A residential building is being renovated. Insulation for energy saving and thermal insulation, A

BRK25G06_111

A residential building is being renovated. Insulat...

An electricity meter measures the electricity consumed. Symbol photo for electricity price and

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An electricity meter measures the electricity cons...

Energy counselling

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Energy counselling

An electricity meter measures the electricity consumed. Symbol photo for electricity price and

BRK25G06_012

An electricity meter measures the electricity cons...

Symbolic image, stamp with the inscription: electricity costs, a green power cable, studio

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Symbolic image, stamp with the inscription: electr...

Woman pouring water into a cup in a bright kitchen with kettle, energy-saving, environmentally

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Woman pouring water into a cup in a bright kitchen...

High-voltage pylon, electricity prices

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High-voltage pylon, electricity prices

Glühbirnenmodelle von Edison, Maxim, Swan und Werdermann, 19. Jahrhundert

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Glühbirnenmodelle von Edison, Maxim, Swan und Werd...

BRK25G44_303

Ledvance logo is displayed on smartphone. Ledvance...

Green power plugon a keyboard isolated on white background

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Green power plugon a keyboard isolated on white ba...

A close up view of an environmental quality inspector wearing respirator, pointing towards

BRK25F70_204

A close up view of an environmental quality inspec...

Gas meter and piping. Shooting Location: Toronto

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Gas meter and piping. Shooting Location: Toronto

An infrared image of the Forchensee in Bavaria Germany

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An infrared image of the Forchensee in Bavaria Ger...

Symbolic image on the topic of Germany's impending deindustrialisation

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Symbolic image on the topic of Germany's impending...

Night storage heating in a room in Düsseldorf, Germany, Europe

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Night storage heating in a room in Düsseldorf, Ger...

Norden, Lower Saxony, Germany - Wind turbines, wind farm near Norden in East Frisia. In front a

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Norden, Lower Saxony, Germany - Wind turbines, win...

Symbolic photo of energy costs, heating valve and euro notes, studio

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Symbolic photo of energy costs, heating valve and ...

15.01.2024, Berlin, Germany, Europe, Several thousand farmers, tradespeople, freight forwarders and

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15.01.2024, Berlin, Germany, Europe, Several thous...

Berlin, Germany - 5 April 2025: Demonstrators protest against the policies of US President Donald

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Berlin, Germany - 5 April 2025: Demonstrators prot...

High-voltage pylon, electricity prices

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High-voltage pylon, electricity prices

The photo shows a piece of lawn with a green power cable

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The photo shows a piece of lawn with a green power...

Woman in the kitchen lifts the lid off a pot with a lid, energy saving, environmentally friendly

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Woman in the kitchen lifts the lid off a pot with ...

Chimney of the UNIPER coal-fired power plant Maasvlakte, in the harbour of Rotterdam, Netherlands

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Chimney of the UNIPER coal-fired power plant Maasv...

Cologne Cathedral, illuminated in the evening. Hohenzollern Bridge, railway bridge over the Rhine.

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Cologne Cathedral, illuminated in the evening. Hoh...

Yellow sign High voltage Danger to life

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Yellow sign High voltage Danger to life

Energy efficiency classes, two solar panels on the façade of an apartment block in Hilden, Germany,

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Energy efficiency classes, two solar panels on the...

Symbolic image on the subject of rising energy costs

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Symbolic image on the subject of rising energy cos...

Saxony's Economics and Energy Minister Dirk Panter visits Saxony's largest battery storage

BRK25F25_402

Saxony's Economics and Energy Minister Dirk Panter...

Research vessel Nova, on the Rhine, in the inland port of Ruhrort in Duisburg, 15 metre catamaran,

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Research vessel Nova, on the Rhine, in the inland ...

Balcony power station on a detached house in Monheim am Rhein, Germany, Europe

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Balcony power station on a detached house in Monhe...

Cologne Cathedral, illuminated in the evening. Hohenzollern Bridge, railway bridge over the Rhine.

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Cologne Cathedral, illuminated in the evening. Hoh...

Wind energy park on a field in Germany

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Wind energy park on a field in Germany

The Telefonica headquarters in the 22 district of Barcelona, energy efficiency classes according to

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The Telefonica headquarters in the 22 district of ...

High-voltage pylon, electricity costs, power failure, power grid

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High-voltage pylon, electricity costs, power failu...

Power bank loads tablet PC, smartphone, isolated on wooden background. charging concept. free

BRK25F42_468

Power bank loads tablet PC, smartphone, isolated o...

14.06.2017, Berlin, Germany, Europe, Black underground cables for the power supply are wound onto

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14.06.2017, Berlin, Germany, Europe, Black undergr...

High-voltage pylon, electricity costs, power failure, power grid

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High-voltage pylon, electricity costs, power failu...

15/09/2023, Berlin, Germany, Europe, German climate protection activist Luisa Neubauer during her

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15/09/2023, Berlin, Germany, Europe, German climat...

Wind turbines and electricity pylons in Bergedorf, Hamburg, Germany, photomontage, Europe

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Wind turbines and electricity pylons in Bergedorf,...

Elektrische Kohlebogenlampe, 1879, von Ernst Werner von Siemens, 1816 - 1892, einem deutschen

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Elektrische Kohlebogenlampe, 1879, von Ernst Werne...

Germany's largest floating solar power plant on the Silbersee III, a quarry pond no longer used for

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Germany's largest floating solar power plant on th...

Cologne Cathedral, illuminated in the evening. Hohenzollern Bridge, railway bridge over the Rhine.

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Cologne Cathedral, illuminated in the evening. Hoh...

Installation of solar modules on the roof of a barn on a farm, over 210 photovoltaic modules are

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Installation of solar modules on the roof of a bar...

Installation of solar modules on the roof of a barn on a farm, over 210 photovoltaic modules are

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Installation of solar modules on the roof of a bar...

Shower, fitting, temperature control, temperature control of the shower water

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Shower, fitting, temperature control, temperature ...

Saxony's Economics and Energy Minister Dirk Panter visits Saxony's largest battery storage

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Saxony's Economics and Energy Minister Dirk Panter...

Cologne Cathedral, has been shining in new light since Easter 2025, the old metal halide lamps have

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Cologne Cathedral, has been shining in new light s...

Cologne Cathedral, has been shining in new light since Easter 2025, the old metal halide lamps have

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Cologne Cathedral, has been shining in new light s...

Cologne Cathedral, has been shining in new light since Easter 2025, the old metal halide lamps have

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Cologne Cathedral, has been shining in new light s...

Installation of solar modules on the roof of a commercial enterprise, over 400 photovoltaic modules

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Installation of solar modules on the roof of a com...

Installation of solar modules on the roof of a barn on a farm, over 210 photovoltaic modules are

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Installation of solar modules on the roof of a bar...

Galeria Kaufhof department stores' in the city centre of Duisburg, on Düsseldorfer Straße, is

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Galeria Kaufhof department stores' in the city cen...

LED lights, evening mood at Cologne Cathedral, Hohenzollern Bridge, Cologne, North

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LED lights, evening mood at Cologne Cathedral, Hoh...

Meter cabinet with bidirectional meter and Ferraris meter in Düsseldorf, Germany, Europe

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Meter cabinet with bidirectional meter and Ferrari...

Cologne Cathedral, has been shining in new light since Easter 2025, the old metal halide lamps have

BRK25E73_052

Cologne Cathedral, has been shining in new light s...

Energy efficiency concept with gas cooker – the cost of natural gas is more expensive. Close up,

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Energy efficiency concept with gas cooker – the co...

A close up view on the arm of a professional home inspector with copy space, checking for moisture

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A close up view on the arm of a professional home ...

Cologne Cathedral, illuminated in the evening. Hohenzollern Bridge, railway bridge over the Rhine.

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Cologne Cathedral, illuminated in the evening. Hoh...

Solar panels on the roof of a detached house in the fog, energy efficiency classes according to the

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Solar panels on the roof of a detached house in th...

Germany's largest floating solar power plant on the Silbersee III, a quarry pond no longer used for

BRK25E56_234

Germany's largest floating solar power plant on th...

Installation of solar modules on the roof of a commercial enterprise, over 400 photovoltaic modules

BRK25E71_253

Installation of solar modules on the roof of a com...

Installation of solar modules on the roof of a barn on a farm, over 240 photovoltaic modules are

BRK25E30_173

Installation of solar modules on the roof of a bar...

Cologne Cathedral, illuminated in the evening. Hohenzollern Bridge, railway bridge over the Rhine.

BRK25E64_253

Cologne Cathedral, illuminated in the evening. Hoh...

Cologne Cathedral, has been shining in new light since Easter 2025, the old metal halide lamps have

BRK25E65_161

Cologne Cathedral, has been shining in new light s...

Solar panels on the roof of a house, energy efficiency classes according to the GEG, Hilden,

BRK25E50_473

Solar panels on the roof of a house, energy effici...

PUEVIT GmbH produces the most efficient photobioreactors for the cultivation of microalgae. The aim

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PUEVIT GmbH produces the most efficient photobiore...

New seating on Norbert-Burger-Platz at the end of the Hohenzollern Bridge on the right bank of the

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New seating on Norbert-Burger-Platz at the end of ...

Cologne Cathedral, has been shining in new light since Easter 2025, the old metal halide lamps have

BRK25E65_164

Cologne Cathedral, has been shining in new light s...

Cologne Cathedral, has been shining in new light since Easter 2025, the old metal halide lamps have

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Cologne Cathedral, has been shining in new light s...

Wind turbines in the North Sea, thunderstorm, Lower Saxony, Federal Republic of Germany

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Wind turbines in the North Sea, thunderstorm, Lowe...

Scaffolding and solar panels on the roof of a detached house in Essen, energy efficiency classes

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Scaffolding and solar panels on the roof of a deta...

Cologne Cathedral and the Hohenzollern Bridge illuminated with LED lights, Cologne, North

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Cologne Cathedral and the Hohenzollern Bridge illu...

Berlin, Germany - 5 April 2025: A protester holds a sign reading Boycott Tesla as he demonstrates

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Berlin, Germany - 5 April 2025: A protester holds ...

Gas flame with 1 euro coin, gas embargo, energy prices, inflation rate, gas price, studio

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Gas flame with 1 euro coin, gas embargo, energy pr...

Cologne Cathedral and the Hohenzollern Bridge illuminated with LED lights, Cologne, North

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Cologne Cathedral and the Hohenzollern Bridge illu...

Werne, North Rhine-Westphalia, Germany, compressor station for natural gas and, in future, hydrogen

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Werne, North Rhine-Westphalia, Germany, compressor...

Symbolic image, energy crisis, overhead power lines, sun, Baden-Württemberg

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Symbolic image, energy crisis, overhead power line...

Berlin, Germany - 5 April 2025: People demonstrate in front of a Tesla shop in Berlin against Tesla

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Berlin, Germany - 5 April 2025: People demonstrate...

Berlin, Germany - 5 April 2025: People demonstrate against Tesla owner Elon Musk in front of a

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Berlin, Germany - 5 April 2025: People demonstrate...

Winter sports area in the Sauerland, Winterberg ski lift carousel, artificial snow slopes,

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Winter sports area in the Sauerland, Winterberg sk...

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