[eru]

Microsoft probably has enough money that they could leave the original one in, and pop down a new one with the new green energy.

(Of course, individual projects still have finite budgets.)

[pvaldes]

I assume that the project approved by the UK government specifies some requirements about environment protection and the fate of the material.

[cutemonster]

Building a new one would take more time

[eru]

Yes, but they can build multiple in parallel.