Mechanical generators have long had a place in data centers as the mainstay of power continuity and reliability, but their reliance on fossil fuels makes them harmful to the environment, a problem that is particularly pertinent during the climate crisis.

This supplement covers the ways we can successfully reduce their role in the data center industry.

Unmissable articles include:

• Building better batteries
  As data centers evolve, their backup options are changing
• Plant power
  Weaning generators off diesel and onto vegetable-based oil
• A problem of density
  How to support racks that go past 200kW
• Picking the right data center battery