Solar tower
Dossier

Dossier

Renewable energy

More and more electricity and heat is being generated from renewable energy sources worldwide. To mark "Renewable Energy Day" on 27 April, our dossier is dedicated to wind, solar, hydropower and geothermal energy.

Image-Reference

On our website, pictures taken, among others, by the following photographers/photo agencies are used:

Agentur photothek.net, Deutsche Messe Hannover, Andreas Arnold, Jörg Böthling, Dominik Butzmann, Carsten Costard, Susanne Esche, Charlie Fawell, Rendel Freude, Torsten George, Gaby Gerster, David Greedy, Peter Himsel, Barbara Högner, Frank Homann, Fred Hoogervorst, Steffen Jagenburg (BRANSCH EUROPE), Thomas Klewar, Studio Kohlmeier , Florian Kopp, Georg Lopata, Jürgen Lösel, Kirsten Milhahn, Rüdiger Nehmzow, Rolf Obertreis, Rubén Arnaldo Farina Ortiz, Holger Peters, Joachim Röttgers, Mika Schmidt, Bernhard Schurian, Jens Steingässer, Pietro Sutera, Uwe Tölle, Jan Zappner.

Fotolia.com: amandare, Yuri Arcurs, Kitch Bain, Ingo Bartussek, Sergio Donà, drizzd, Dmitry Ersler, eyewave, Zoltán Futó, Eric Gevaert, Fotolia XXV, Friedberg, goodluz, Dirk Hoffmann, imageteam, Christian Jung, Abdelhamid Kalai, Sergej Khakimullin, Vladimir Kolobov, krizz7, Kzenon, lumen-digital, marog-pixcells, Mindwalker, Miredi, mirpic, Nebuto, Tino Neitz, Christian Pedant, Franz Pfluegl, prognone, Gina Sanders, Henry Schmitt, spree berlin, SVLuma, Kheng Guan Toh, tom, Torbz, typomaniac, VRD, Joachim Wendler, Sreedhar Yedlapati.

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Underground power cable building site

The green electricity highway

The expansion of renewable energies plays an outstanding role for Germany in the energy transition and in achieving the national climate goals. By the end of the decade, their share is expected to have risen to up to 80 percent. KfW supports the sustainable transformation in the energy sector in a variety of ways.

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Read the interview with Heliatek-CEO Guido van Tartwijk
Two man attaching solarfilms onto a wall

"On virtually any surface"

Heliatek CEO Guido van Tartwijk on his organic solar films, the solar market of the future and the most important decision in the company's history.

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Employee inspects a pipe in the production hall

Climate action in sunshine-yellow

The Swabian solar thermal manufacturer Ritter Energie has installed a new system to make the production of solar heat collectors more flexible. Ritter Energie wants to use it to increase the economic efficiency of large-scale solar thermal energy systems, as well as to drive forward the transition in heating systems.

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A man looks out of his rooftop window onto his photovoltaic modules.

Solar energy on demand

Sonnen GmbH has developed a storage system so that solar power can be used even after sunset. Homeowners can use an app to control when and to where the electricity should flow from their photovoltaic systems.

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Solar panel Bevinahalli

Green corridors

A solar power plant in the village of Bevinahalli now produces urgently needed energy for the Indian city and IT metropolis of Bangalore. The use of renewable energies in India is indispensable. The country is already the third largest electricity consumer in the world.

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The biggest solar plant of the Carribean

Green electricity for the island

A medium-sized company from the Eifel is planning the largest solar power plant in the Caribbean and helping to put an end to the age of heavy fuel oil. Deutsche Investitions- und Entwicklungsgesellschaft (DEG) supports the project.

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Interactive world map of renewable energy

Global green electricity

Renewable energy sources play a significant role in mitigating climate change With a mere click, our updated interactive world map shows the green electricity each country generates from solar power, wind energy and hydropower.

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Solar plant Zaatari

Green power for Zaatari

A solar power plant in the size of 33 football fields is securing the electricity supply of a refugee camp in the Jordan desert. This not only gives the Syrian families a feeling of normality, but also creates busy city life.

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Solar power from the desert

Morocco is harnessing this potential to free itself from fossil fuels with concentrated solar power plants. This is exemplary from an emerging country, and a bold step that is supported by international donors like KfW.

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Energy Bunker by night

From bunker to power plant

In the Hamburg district of Wilhelmsburg, a World War II bunker is being used as a renewable energy power plant to generate decentralised heat for the surrounding area, as well as electricity.

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Landscape with power poles and wind wheels

Smart grids

Unfortunately, green electricity is only produced when the wind blows or the sun shines. This means power consumers need to adjust. With the help of price signals, new intelligent data networks can help to use energy when it is created.

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School children doing their homework, illuminated by a Little Sun solar lamp

Light for everyone

Little Sun brings light to developing countries. Little Sun Managing Director Felix Hallwachs on the small lamp that is changing the world.

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Geothermal power plant Olkaria

Kenya becomes a pioneer in green energy

To expand its power supply, Kenya intensifies investments in renewable energy. We spoke to Michael Andres, an energy expert at KfW, about Kenya's quantum leap from emergency power diesel generators to geothermal power plants.

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a cable is being connected to the battery

Electricity to go

Jürgen Zinecker has developed a mobile power pack: ARVEY supplies and stores electricity on the go – with the power of the sun.

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Illustration powerbank from Tesla and Neoen

Giant battery against blackout

The company Neoen has partnered with the Tesla Group to install the world's largest lithium-ion battery – it stores wind energy and is designed to act as a backup in the event of power outages in Australia.

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