I do the maths on this one. Our hosting provider Contabo publish nice PDF, green certificates, the works. But I check the generator logs from neighbor colo—weekly test, 30 minutes, 2MW diesel. Voilà, 52 hours yearly of pure diesel burn.
The offset math: 104 MWh diesel versus their "100% renewable" claim. Scope 2 easy to wash with RECs. But the diesel? That is Scope 1, direct. No hiding.
I ask this: if you run diesel weekly for "reliability," are you truly renewable? Or is the marketing team in another building from the operations team?
Someone do the carbon math. I am curious.