TEQnation 2024: Sustainable Software: May the Green Code Be with You

In a galaxy not so far away, software development is taking on an eco-friendly twist! Join me for a journey into the world of Green Software Development, where we explore how the Force of sustainability can be harnessed to create a better, greener future for software and the planet.

We'll fly away to various topics, including:
- The Green Side of Code: Discover the fundamental principles of Green Software Development and how they can lead to reduced energy consumption, lower carbon footprints, and more environmentally responsible software.
- Eco-Jedi Tools: Explore the tools and techniques at the heart of Green Software Development, including energy-efficient coding practices and sustainable development methodologies.
- Carbon Emissions and the Dark Side: Learn about the environmental impact of software and how we can combat the "Dark Side" of excessive energy consumption with eco-conscious programming.
- Ewoks vs. Energy Efficiency: Are you building your software like the energy-efficient Ewoks or the resource-hungry Death Star?
- The Path to a Greener Future: We'll discuss the challenges and opportunities ahead on our journey toward a more sustainable software galaxy and how you can be a part of it.

Join me for an engaging and informative presentation where we combine the power of technology and the wisdom of the Jedi to bring balance to the software development Force. Together, we'll ensure that the code is green, and our planet is preserved for generations to come. May the Green Code Be with You!

1. Sustainable
Software
May the Green Code Be with You

2. Addressing the
Elephant in the Room

3. The IT industry
emits more carbon
than the aviation
industry

4. There’s always
worse…

5. Twin Transition
Digital
Transition
Sustainability
Transition
Greening ofand by
IT & Data
Where Digital amplifies Sustainability

6. CSRD
Corporate Sustainability Reporting Directive

7. •From 2025, the EU directive for sustainable reporting will
apply to large listed companies.
•This so-called CSRD obliges them to report on their
sustainable impact.
•New research shows that 25% of Dutch companies covered
by the CSRD do not yet collect enough data.
fd.nl–19 nov2023
In short
A quarter of Dutch companies are not ready for
mandatory sustainable reporting

8. Sustainable Software
01
02
03
04
Emitting fewer greenhouse gases
The Green Side of Code
Embedding Sustainable Development Methods
Wrap-up & actions
Green Software
Technology
People
Closing

9. Green Software
Emitting fewer greenhouse gases

10. Green Software
Emitting fewer greenhouse gases

11. Green Software Foundation
Principles
Patterns
Practices
Azure Well-Architected
Framework

12. Green Software Principles
Energy Efficiency
Consume the least amount of electricity possible
Use the least amount of embodied carbon possible
Hardware Efficiency
Do more when the electricity is clean and less when it's dirty
Carbon Awareness

13. The Lightsaber

14. Electricity Maps
Climate Impact by Area

15. Carbon Intensity
Variability

16. Demand shifting
Temporal shifting12-16%
reduction
within a day

17. Demand shifting
Spatial shifting
30-90%
reduction
within EU

18. People
Embedding Sustainable Development Methods

19. People
Embedding Sustainable Development Methods

20. Share knowledge and impact
Use The Principles of Green Software Engineering
Start small
Create Awareness
Hold a Planet Retrospective
Add actionable items to the Sprint
Start with The Team

21. “As <type of user>, I want <some
goal> so that <some reason> ”
The Planet as a Stakeholder

22. Use smaller images
and files
Simpler & DarkerLet the end user decide
File size
Design
File format
Awareness
Optimize for less space
GreenUX

23. Website Carbon
Calculator
websitecarbon.com

24. Website Carbon
Calculator
websitecarbon.com

25. Website Carbon
Calculator
websitecarbon.com

26. Technology
The Green Side of Code

27. Technology
The Green Side of Code

28. Programming
Languages
Normalized global results for Energy

29. CO2Emission Benchmarks

30. Compress stored data
Optimize code by
doing less external API
or Database calls
Check which steps in
your CI/CD could be
optimized
Compress
Optimize
Cleanse
Pipeline
Remove unused data
and/or logs
Quick Wins

31. Store and swap blob data
from hot, cool, cold and
archive tier
Deploy workloads that can
handle interruptions and don't
need to be completed within a
specific period of time with a
huge discount.
Spot InstancesAccess tiers
Microsoft Azure

32. PUE
Power usage effectiveness

33. Cloud providers
Server locationPUECO2e
Google Cloud
PlatformEurope-west41.11631.04 kg
Amazon Web
ServicesNetherlands1.2682.20 kg
Microsoft
AzureWest Europe1.125639.57 kg

34. Measuring
What you can't measure, you can't improve

35. Software Carbon Intensity
SCI = ((E * I) +M)per R
Energy (E) consumed
by software in kWh
E
Carbon intensity (I),
carbon emitted per
kWh of energy,
gCO2/kWh
I
Embodied carbon (M),
the amount of carbon
emitted through the
hardware
M
Functional Unit (R), how
does software scale
R

36. Software Carbon Intensity
SCI = ((E * I) +M)per R

37. Cloud for
Sustainability API
Microsoft Azure
{
"value" : [{
"subscriptionName": "Hello World",
"azureRegionName": "Switzerland North",
"scope": "Scope",
"totalEmissions": "5.581207248",
...
}]
}

38. Azure
Emissions Impact Dashboard

39. Dynatrace
Carbon Impact

40. Kubernetes Event-
driven Autoscaling
Carbon Aware KEDA Operator

41. Impact
Framework
Green Software
total-embodied-emissions: 1533.12
expected-lifespan: 94348800
grid-carbon-intensity: 951
physical-processor: Intel Xeon Platinum
8370C v4 2.3 Ghz

42. Closing
Wrap-up & actions

43. First actions
Start small
Hold a Planet
Retrospective,
have Quick wins
Inspire
Share insights
Embed
Incorporate in
workflow
Measure
Set right tools in
place

44. Retrospectives with the Planet
Earth as Our Stakeholder
(Dutch) Manifest for sustainable IT
Green Software FoundationSustainableIT.org
The Agile PlaygroundCoalitieDuurzameDigitalisering
Standards tailored to IT's impact
on business sustainability
Building a trusted ecosystem for
Green Software
Further learning

45. “ Do...
or Do Not.
There Is No Try.”
—Yoda

46. This presentation template was created by Slidesgo, and includes icons by
Flaticon, and infographics & images by Freepik
May the Force
Be With You
Do you have any questions?
[email protected]
[phone]