Schedule 2025

Workshops

Workshops 2025

Blue Angel Certification - Workshop

Held by Arne Tarara
A workshop to understand, the impact of digital technologies on the environment and how to reduce it.

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Deep Sleep by Design - Building Linux Products that truly Sleep - Workshop

Held by Hagen Pfeifer
A workshop to engineer low power linux systems to be used in mobile or embedded systems

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Deep Sleep by Design - Building Linux Products that truly Sleep - Workshop

Green Mindshift in Software Development - Workshop

Held by Prof. Dr. Verena Majuntke / Anita Schüttler
A workshop to evaluate how to integrate sustainability in software design and development processes

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Green Mindshift in Software Development - Workshop

How to start with Green AI - Workshop

Held by Florian Bartling / Philipp Dressler
Discuss and evaluate hands-on sustainability and efficiency criteria of off-the-shelf AI products

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Innovation & Connection Café

Held by Didi Hoffmann
A workshop to connect and learn from peers to solve current engineering challenges around green software.

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Schedule 2025

Thursday, 13 November 2025

Software & Hardware (So-Ha)

Data Centers / Infrastructure / Management (DIM)

Community Track

09:00

Welcome & Introduction to the conference 🇬🇧

09:20

Keynote: State of Green Digital Tech 2025 🇬🇧

09:45

Green your Code: Oaklean’s vision for sustainable Node.js projects 🇬🇧

CarbonDB - Real Time carbon emissions mapping to heterogenous IT infrastructure 🇬🇧

Grundlagen von IT-Nachhaltigkeit 🇩🇪

10:15

Coding Smarter for a Greener Future | A comparison between Go & Java 🇬🇧

Empowering Devs to Act: Bringing Environmental Metrics into Infrastructure Decisions 🇬🇧

Green IT and Green AI: A Practical Guideline for More Sustainable Digital Systems 🇬🇧

10:40

Coffee Break (15 min)

10:55

Green Frontend - Measuring and understanding the environmental impact of web applications 🇬🇧

Methods to determine the environmental footprint of software – on the way to standardisation 🇬🇧

Open Source as Sustainable Infrastructure: From Shared Code to Greener Compute 🇬🇧

11:50

Fighting hardware obsolescence with greener frontend code 🇬🇧

Rerouting the Cloud: Cutting 90% CO₂ and Cloud Costs with Smarter Workload Shifting 🇬🇧

Open Source im Vorteil: Zertifizierung mit dem Blauen Engel 🇩🇪

12:20

Blauer Engel für Software - Award Ceremony - by Umweltbundesamt 🇬🇧

Flying Blind: Why Datacenter Sustainability Needs Real Data, Not Marketing Claims 🇬🇧

12:45

Lunch (60 min)

13:50

How to build a sustainable AI infrastructure 🇬🇧

The "missing middle" of green IT: Why twin transformation fails without skills development 🇬🇧

From shy contributor to (kinda) confident community leader 🇬🇧

14:20

GreenWeb Showcase WienIT 🇩🇪

Using Generative Adversarial Networks to Reduce the Impact of Website Images 🇬🇧

End Of 10”: How the FOSS Community is Combatting Software-Driven Resource and Energy Consumption 🇬🇧

14:50

Software Sustainability through Green Gates @ Nextcloud

Ecodesign in mobile development with DevGreenOps 🇬🇧

Paint It Green – How Open Source Helps Reduce the Environmental Impact of AI 🇬🇧

15:20

Longer Coffee break (30 min)

15:50

cat /proc/energy: Power and Carbon Awareness Made Simple 🇬🇧

Sustainable hosting & data center insights: experiences & challenges of a web hoster 🇬🇧

Data centers and their energy consumption: public opinion vs. politics 🇬🇧

16:20

Green Configuration: Reducing Software Energy Consumption Through Configuration 🇬🇧

Understanding Data Centre IT efficiency - The Hidden Power Source 🇬🇧

Beware of green AI – or what Big Tech likes to make of it

17:15

Linux Power Management

Making spot instances work for sustainability 🇬🇧

Who Owns The Future of Green AI? 🇬🇧

19:00

➡️ Conference Dinner

Friday, 14 November 2025

Software & Hardware (So-Ha)

Data Centers / Infrastructure / Management (DIM)

Community Track

09:00

How accurate are current tools and models for estimating software energy consumption? 🇬🇧

Move workloads to lower carbon ? The hidden complexity that might hinder your carbon-aware efforts 🇬🇧

Let's be honest. A reality check on sustainability in digitalization 🇬🇧

09:55

Measure what you manage: Transparent Energy consumption of cloud infrastructure 🇬🇧

Getting Management Buy-in: Building a Business Case for Green IT 🇬🇧

Place-conscious-poetic: Grounding the Cloud 🇬🇧

10:45

Coffee Break (15 min)

11:00

Built to Last: The Art of Sustainable Software Design 🇬🇧

One year of the CO2-challenge – insights and lessons learned 🇬🇧

11:30

Requirements engineering as basis for architecting a green software 🇬🇧