Tech Tip #14: Shift flexible load to your own solar

Moving flexible data-centre load cut energy costs by 16.64%.

Video created by explainapaper.com

The problem

Sites with on-site renewables often run controllable loads at fixed times, buying grid power while their panels export or sit idle.

The fix you can use today

  • Split loads into controllable and non-controllable.
  • Schedule the controllable ones into hours of on-site generation.
  • Set limits on how far a job may move, and measure the impact on users.

GreenCode researchers found that moving flexible data centre work to match solar power cut energy costs by 16.64%.

Tools that help

  • Carbon Aware SDK (Green Software Foundation): an API and CLI for grid carbon-intensity data, so flexible work can move to cleaner times or places
  • Electricity Maps: live and forecast grid carbon intensity by region

How GreenCode helps

GreenCode helps tackle this by mapping your running systems and attributing energy and CO2e to the services that cause it. You see which services run hot, and which barely run at all, before you decide what can move. More on this.

Tags

#carbon-aware#scheduling#data-centre#renewables

Sources

Transcript

Moving flexible data centre work cut energy costs by sixteen point six four percent. Many sites have their own solar panels. But they still run flexible jobs at fixed times. So they buy power from the grid while their panels sit idle. Or the panels send spare power away. Here is the fix you can use today. Split your work into jobs you can move, and jobs you cannot. Schedule the movable jobs into the hours when your panels are generating. Tools like the Carbon Aware SDK and Electricity Maps add live grid carbon data. Set limits on how far a job may move. And measure the effect on your users. GreenCode researchers matched flexible work to solar power, and cut energy costs. The biggest savings came with more disruption. Limiting the disruption still saved about ten percent in one test. GreenCode helps tackle this by showing the energy each of your running services uses. You see which services run hot, and which barely run at all. That was GreenCode Tech Tip number fourteen. Follow for the next tip, and find more on greencode.ai/tech-tips.

All GreenCode Tech Tips · All GreenCode videos

  • Tip #14
  • For Ops and infrastructure
  • Length 1:09
  • Category Cloud and infrastructure
GreenCode

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