Our Green Metrics Tool was awarded the Blue Angel for software at a ceremony at the Federal Ministry for the Environment - making us the first open source energy and CO2 measurement tool to be awarded the eco-label.

Our joint paper Development and evaluation of a reference measurement model for assessing the resource and energy efficiency of software products and components—Green Software Measurement Model (GSMM) from 12 groups of researchers and practitioners has been selected for the Spring 2025 Editor’s Choice award!

The environmental impact of software and hardware systems has become a pressing concern. While mainstream operating systems like macOS and Windows provide proprietary tools to analyze energy usage, Linux—the cornerstone of open-source computing—lacks comparable capabilities. To address this gap, we present PowerLetrics, an open-source framework enabling detailed, per-process energy footprint analysis on Linux systems.

Our study in collaboration with Prof. Dr. Verena Majuntke from HTW Berlin and dena (German Energy Agency) has been published!

The content is the analysis and recommendations for action for politics, companies, research and civil society on how green coding can contribute to sustainable digitalization and reduced electricity consumption.

Our Green Metrics Tool has been awarded the Blue Angel for resource and energy efficient software! Details: Blog article / Product page on Blauer-Engel.de

Unser Pitch bei den WSA Awards für Green Coding Solutions und das Green Metrics Tool.

Award of the Blue Angel for Green Metrics Tool and Nextcloud

Storage-Insider.de reports on the awarding of the Blue Angel and quotes our statements: “If we want sustainable digital infrastructures, we have to look at the software. Nextcloud shows that efficient and transparent cloud applications are possible”

In the Tagesspiegel background feature, our CEO Arne Tarara talks about the CO2 and energy costs of AI models and how to deal with them. how these are dealt with. Transparency is key to managing the risks properly.

In the Süddeutsche Zeitung dossier entitled “Deep Dive: Initiative promotes focus on green coding” we are interviewed on our ambitons and goals with the Eco Compute 2024.

“Ecocompute: The devil is in the details”

Datacenter-Insider.de is giving a detailed Re-Cap on our Eco-Compute conference in 2024. Worth a read

We were interviewed at Grüne-Startups.de about the content and concept of the Eco-Compute conference. Why is the approach with digital sustainability in hardware and software so unique and what are our goals for April.

In the e-tailment feature, we talk about green coding, especially in online stores. Where leverage points are, but also new approaches to stand out from the competition with a sustainable and CO2-conscious store.

The increasing energy consumption of software and hardware systems has become a significant concern due to its environmental impact and operational costs. While operating systems like Windows and macOS have proprietary, undocumented energy analytics functionality, this feature is still lacking in Linux. In this paper we introduce PowerLetrics, an open-source framework designed to monitor and analyze power consumption metrics on a process level on Linux.

This talk explores best practices and challenges in measuring software energy consumption, highlighting limitations of tools like Intel RAPL and the Gude Power Meter, and stressing the importance of consistent test conditions, CPU settings, and automated validation. It provides practical advice on specialized operating systems, sampling intervals, and network traffic, aiming to improve green coding practices and reduce software’s environmental impact.

The environmental impact of software is gaining increasing attention as the demand for computational resources continues to rise. In order to optimize software resource consumption and reduce carbon emissions, measuring and evaluating software is a first essential step. In this paper we discuss what metrics are important for fact base decision making. We introduce the Green Metrics Tool (GMT), a novel framework for accurately measuring the resource consumption of software. The tool provides a containerized, con- trolled, and reproducible life cycle-based approach, assessing the resource use of software during key phases. Finally, we discuss GMT features like visualization, comparability and rule- and LLM-based optimisations highlighting its potential to guide developers and researchers in reducing the environmental impact of their software.

Conference publication at HotCarbon 2024 - We present a paper to reduce the energy consumption of LLM inference by using specialized open source models selected by a classifier beforehand.

Veröffentlichung in Future Generation Computer Systems - Das Green Software Measurement Model integriert Ergebnisse von 12 Gruppen von Forschern und Praktikern. In unserem Teil beschreiben wir, wie professionelle Energie- und CO2-messungen mit modernen container-nativen Open-Source-Werkzeugen durchgeführt werden können.

Publication in the GI conference proceedings of EnviroInfo 2023 - Software Life Cycle Assessment (SLCA) is gaining attention for its environmental impacts in production, deployment, usage, and disposal. Unlike LCA for physical products, SLCA is still evolving in software.