Battery maker Saft has delivered a battery energy storage system (BESS) to Microsoft to replace diesel backup power generators at its data centre in Sweden.
The BESS entered operation in June 2023.
Saft said diesel generators have been essential for keeping the data centres running in the event of a grid outage. The new BESS means no greenhouse gas emissions. The four groups of 4 MWh each provide up to 80 minutes’ back-up energy.
Saft deployed the BESS over 16 months following Microsoft’s approach. It supports grid stability and provides black start capability to ensure rapid recovery of the power grid in the case of an outage.
The BESS was supplied on a turnkey basis with integrated power conversion and control equipment divided across four independent groups. It included eight LFP Intensium Max 20 High Energy containers. Each of the groups is capable of delivering a peak power rating of 3 MW.
Cedric Duclos, Saft’s CEO, said: “TotalEnergies is proud to support Microsoft in its goal to reduce its emissions from data centres. The collaboration with Microsoft has allowed its affiliate Saft to deliver this system, which shows the huge potential for battery energy storage to decarbonise the digital industry.”