Good work, but why worry about CO2
Why bother with a lower carbon footprint data centre when the time taken meant that so much CO2 was saved by doing the processing in a very short period of time. In any case the amount of CO2 used, even in the original case of 100 days would be so small as to make no difference to global climate. Don't forget that CO2 is a tiny percentage of the atmosphere, and man's CO2 is a small proportion of that tiny percentage.