It is currently impossible to properly compare how “sustainable” one product is vs another. Pictures of wind farms look nice, but how do you choose which cloud region to deploy (or move) your resources if there is no way to compare them?
As more applications are run through a web browser, even that is beginning to be streamed from the cloud. Is that the best use of our now highly efficient computers? How energy efficient is application streaming?
To avoid accusations of greenwashing, data center operators must consider investing in a portfolio of renewable energy products. RECs cannot credibly be used to back claims of 100% renewable energy use.
My notes on the paper: Montevecchi, F., Hinterholzer, S., Stickler, T. & Hintemann, R. (2020) Energy-efficient cloud computing technologies and policies for an eco-friendly cloud market: final study report.