Name: Green Coding Meetup - Blauer Engel für Software / Carbon Aware Computing
Start: 2025-07-09T18:30:00+02:00
End: 2025-07-09T20:30:00+02:00
Location: adesso SE

The Green Coding Meetup is finally back! (DE/EN)

And we have great speakers, a great location, great food ... basically everything is great about the Meetup. :) - Also - we have a very special suprise and will give away free tickets to the WeAreDevelopers World Congress in Berlin!!!! (See details below)

The Bundesverband Green Software has teamed up with the Green Coding Meetup and many great partners (see below).

Talks will be in English preferred but might switch to German if we have no English speaking folks present.

**For first-timers**: Typically we have 50/50 DE/EN folks present, so for chit-chat after you will always find some language
that you are comfortable with.

**Agenda:**
\- 18:30 Doors open
\- 18:45 Talk \#1: Blauer Engel für Software \(DE/EN\)
\- 19:15 Small break
\- 19:25 Talk \#2 \- Carbon Aware Computing \(DE/EN\)
\- 20:00 \- Enjoying ourselves with lovely Green Coding chit chat

\-\-\-\-

**Talk #1 - Blauer Engel für Software**
The Blauer Engel für Software is the official ecolabel introduced by the German Umweltbundesamt and it certifies software products that are more energy and resource-efficient. In 2024, the scope of the label expanded from just desktop software to software on mobile devices and service software.

How will such a label benefit you and how can you ensure your software is sustainable and get certified too?
The talk will walk you through the process of getting certified, which would include measuring how sustainable your software is with the help of the Green Metrics Tool and how you can proceed to fulfil the criteria for the Blauer Engel für Software. We will also share our insights into website measurements and the vast gap in energy consumption.

To ensure that you know what to expect with the certification, we will also share a case study on Nextcloud, which has also been certified with the Blauer Engel für Software label. We will talk about relevant data and setup that was needed for the certification.

\-\-\-\-

**Talk #2 - Carbon Aware Computing**
To meet the demands of climate-conscious software development, we need to go beyond traditional optimisation strategies like server utilisation and dynamic scaling.
But the good news is that we don’t have to reinvent the wheel, as Green Software Development design patterns already exist. Enter carbon-aware computing where you align software resource usage with the availability of low-carbon energy.

This talk explores two key approaches:
• Time-shifting: scheduling flexible tasks (e.g., batch jobs) when renewable energy is most available.
• Demand shaping: adapting real-time workloads to current energy conditions.

We’ll demonstrate how these patterns can be implemented using Azure and Kubernetes, including how to “shed” load, dynamically limit scaling based on CO₂ intensity, and source reliable energy predictions, which will all be illustrated through live demos.

\-\-\-\-

The special suprise!

We are giving away 6 free ticketst to all attendees of this Meetup to the WeAreDevelopers World Congress in Berlin from 9-11 July 2025!

If you do not know it yet, hear it in their own words:
WeAreDevelopers World Congress, the world’s leading event for developers and tech decision-makers in Berlin from 9-11 July 2025!

You can experience insightful sessions led by over 500 top-tier speakers, including Thomas Dohmke, Angie Jones, Scott Chacon, and many others. Attendees include 15,000+ developers worldwide.

Tickets will be distributed through a free raffle after the talks. Of course supported by some nice drinks and food :)

\-\-\-\-

**Our partners**

**[adesso SE](https://www.adesso.com)** is one of the leading IT service providers in German-speaking
countries, specializing in customized software development and digital transformation. With over 10,000 employees at 60 locations, adesso brings many years of experience and innovative strength to a wide range of projects. The focus is on combining in-depth industry knowledge, technological diversity, and proven project methods – for tailor-made IT solutions in sectors such as insurance, banking, healthcare, and telecommunications.

**[Hitabis GmbH](https://www.hitabis.de)** is a Berlin-based software development specialist that implements digital solutions with creativity, team spirit, and over 20 years of experience. The company is committed to embedding sustainability, future viability, and resource efficiency in the mainstream of software development. With the Oaklean tool, Hitabis brings a tool to the community that makes software energy consumption visible during development – for greater transparency and true sustainability in software development.

**[Green Coding Solutions GmbH](https://www.green-coding.io)** is a digital green tech company that does open source tools for reducing software climate
impact. We do tooling, we run the ecoCompute conference, we do the biggest green software Meetup in Berlin.

**[Bundesverband Green Software](https://www.bundesverband-green-software.de/)**
The ICT sector is currently responsible for around 4% of global CO2 emissions. As actors of digitalization, we have the responsibility and the opportunity to use our knowledge and position to stop this trend and minimize software emissions.
The Bundesverband Green Software e.V. pursues the mission of accelerating the application of standards, tools, and best practices for Green Software in Germany.

Three principles are essential for us to fulfill the mission:

1. **Energy Efficiency** ➡️ Use as little electricity as possible
2. **Hardware Efficiency** ➡️ Minimize the amount of embodied carbon
3. **Carbon Awareness** ➡️ Do more when the electricity is renewable and less when it is fossil-based.

We bring these topics to companies that count software and IT as their core business. We offer information services and connect participants in the software development process with each other.

[bluehands GmbH & Co.mmunication KG](https://www.bluehands.de)
bluehands is a software company founded in 2001 in Karlsruhe with many years of experience in developing complex applications and web applications.
As a specialized team and result-oriented company, bluehands supports its clients from various industries, including energy, laboratory diagnostics, automation, passenger information systems, and ultrasonic testing technology, with customized software solutions.
bluehands is characterized by a deep understanding of software craftsmanship and clean code, as well as know-how in tools, frameworks, best practices, and domain knowledge. This is combined with extensive expertise in cloud migration, software modernization, legacy software, and green software development.
In the use of .NET technologies, bluehands is a pioneer and contributes to the community with several open-source projects and active participation and organization of conferences and meetups.

\-\-\-

**Thanks and shout out**

Free Drinks and shout out to adesso

Thanks very much to adesso for sponsoring the room and drinks for the evening! ❤️

Thanks very much for Hitabis for helping to organize.

Thanks Bundesverband Green Software for the network support.

Thanks also to WeAreDevelopers for network support and sponsoring free tickets for our Green Coders community!

Aydin Mir Mohammadi

Arne

Kay Makowsky

Murilo Ribeiro Polla

Green Coding

Green Software Foundation Community

We're a non-profit foundation focused on decarbonizing software.

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