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FOSS Energy Efficiency Project (FEEP)

How can you measure software's energy consumption? And does it make a difference? We are working to make free software more sustainable.

Blauer Engel For FOSS (BE4FOSS)

Eco-labels for products are used widely already. But how can they be transferred to software? What criteria is relevant? We need more pioneers to find out how we can make software sustainable.

KDE Eco - Building Energy-Efficient Free Software

KDE supports the FEEP and BE4FOSS programs to help free and open source communities produce more environmentally friendly software. The projects provide communities with guidelines and support to optimize software to be more energy efficient and have a longer life-span.

Let’s make energy efficient software and digital sustainability part of our community! We can live up to our responsibility for this and future generations!

Get Involved

Join us for a sustainable software development movement!

FOSS Energy Efficiency Project (FEEP)

Image of globe with computer mouse
Image of globe with computer mouse

FEEP is developing tools to improve energy efficiency in free and open source software development. Design and implementation of software has a significant impact on the energy consumption of the systems it is part of. With the right tools, it is possible to quantify and drive down energy consumption. This increased efficiency contributes to a more sustainable use of energy as one of the shared resources of our planet.


The BE4FOSS Project was funded by the Federal Environment Agency and the Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection (BMUV1). The funds are made available by resolution of the German Bundestag.

The publisher is responsible for the content of this publication.

1 Official BMUV and UBA-Logos are sent only by request at: verbaendefoerderung@uba.de

Image of BMU/UBA