Use VR prototyping where possible to reduce waste

Choose hosting solutions powered by renewable energy wherever possible

Especially for heavy-computation tasks, run the jobs or process the data only when strictly necessary

Reduce remote data transfer as much as possible

Implement server side caching or static technology to minimise server load

Opt for renewable electricity derived from natural sources, wherever possible

Consider a scheduled sleep-mode when the project is not in use

Enable idle or low power modes on any hardware that supports these features

Consider the efficiency of heating (and insulation) or cooling (and ventilation) requirements

Use energy efficiency as criteria when selecting equipment, not just up-front cost

Think carefully about which tasks run more efficiently locally or which could be run on cloud/server infrastructure