Sustainable Software - its a win-win-win situation

GSD Meetup presentation (10/10/2024):

Are you still unsure whether Green IT is worth implementing in your organization, or do you need some good arguments to convince your colleagues?
Writing sustainable software is not just a win for the planet. Focusing on lean and efficient systems has several other, often less obvious, benefits for all stakeholders.
In this talk, we'll discover how sustainable software engineering can simultaneously advance environmental goals, improve business profitability, and increase developer satisfaction.

1. Green Software Development Munich
October 10, 2024
Carsten Windler

16. Average Emissions per Page View (gCO2e) =
([(OP
DC × (1 - Green Hosting Factor) + EM
DC) + (OP
N + EM
N) + (OP
UD +
EM
UD)] × New Visitor Ratio) + ([(OP
DC × (1 - Green Hosting Factor) + EM
DC) +
(OP
N + EM
N) + (OP
UD + EM
UD)] × Return Visitor Ratio × (1 - Data Cache
Ratio))
https://sustainablewebdesign.org/estimating-digital-emissions/
Data Transfer × EF x Carbon Intensity = Emissions

18. https://greenframe.io/

19. from 67mg to 5mg CO2e per request
(92% less emission)

20. https://docs.green-coding.io/

22. https://www.cloudcarbonfootprint.org/

23. -70% emissions

24. https://github.com/github/GreenSoftwareDirectory

26. Right Sizing
Turn off unused
resources
Data compression
and retention
Code performance
Autoscaling
Carbon
awareness
Energy-
efficient
chipsets
Product
Design
Saving
Plans
Reserved
Instances
GreenOpsFinOps
Spot
Instances
Cost reduction
Win-win-zone

27. -70% costs
-70% emissions

28. Code Quality
•Efficiency
•Code Simplicity
•Reduced technical debt
•Better architectural decisions
•Mindful of external dependencies
•Cultural shift towards quality and performance

29. 7.7x faster �

30. Code Quality

31. Performance

32. Conversion & SEO
https://www.portent.com/blog/analytics/research-site-speed-hurting-everyones-revenue.htm

33. Competitive advantage

35. Accessibility
Web Sustainability Guidelines (WSG) 1.0

36. Employee retention
Photo by Andrea Piacquadio

37. Employee retention
Photo by Gustavo Fring

38. Photo by Marten Bjork on Unsplash

40. Solastalgia describes a form of emotional or
existential distress caused by environmental
change.
It is best described as the lived experience of
negatively perceived environmental change.
Glenn Albrecht
“

44. Your handprint
•Demand sustainable practices
•Inspire other
•Change

45. Getting active is the best remedy against
helplessness.
Dr. Eckart von Hirschhausen
“

47. So...Thank you!

48. github.com/carstenwindler/green-it

49. https://www.linkedin.com/learning/green-coding-grundlagen

50. Carsten Windler
Software Engineer, Author, Speaker, Green IT Enthusiast
PRINCIPAL ENGINEER @ PLAN A
linkedin.com/in/cwindler
[email protected]