Writing Greener Software Even When You Are Stuck On-Prem
summary
Global data center emissions sit around 220–320 TWh and doubling when networks are counted makes the industry roughly the size of Brazil, so focus is on measurable wins: run the Green Software Foundation maturity matrix, audit for 66% zombie hosts found in one consolidation, and push average server utilization into the 50–80% utilization sweet spot to cut idle carbon. Use tools like Cloud Carbon Footprint, AWS Customer Carbon Footprint Tool, Azure Emissions Impact Dashboard and ElectricityMaps, apply demand shifting and carbon‑aware SDKs, and prefer time‑shifted ML training (studies show 45–99% cuts) or smaller models where possible.
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chapters (14)
- 0:00Intro
- 6:11Cost of low carbon tech
- 7:27Maturity matrix
- 10:21What are carbon neutral & net zero?
- 13:09How do we get more efficient?
- 21:02LightSwitchOps
- 24:42Measurements & proxies
- 28:10Demand shifting
- 31:20Sidebar: AI
- 35:21Looking ahead
- 36:40What else can you do?
- 38:36Finally
- 39:17Recommendations
- 40:54Outro
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