The lithium-ion batteries that China dominates are becoming increasingly prevalent. In February Google said that it had installed more than 100 million cells across its data centers and had started to replace diesel generators with batteries. Microsoft said it aimed for its data centers to eliminate diesel fuel for backup by 2030 to meet environmental goals.
Microsoft has a commitment to entirely remove fossil fuel backup generation by 2030?
I know it's implied by the 100/100/0 statement, but I hadn't realised they had been explicit

