kept warm while not running, using block heaters powered by the grid. This contributes to the power draw of the site. consumption to the energy consumed by its IT equipment, such as the server. A perfect PUE value would be 1, meaning all energy consumed by the facility is used by IT equipment, with no overhead for other infrastructure. In practice, this is not other infrastructure relative to IT equipment. Over the past decade, the annual average PUE has significantly improved from 2.5 in 2007 down to 1.41 in 2024. However, at the industry level the PUE has plateaued since 2020. Despite more efficient data centres coming online, a significant share of existing legacy facilities remains with higher PUEs. According to recent IEA analysis, the global weighted average PUE is expected to decline continuously, reaching 1.29 in 2030 in the Base Case. This could save around Base Case, equivalent to reducing the cooling requirement per unit of IT electricity performance, as well as the climate of its geographical location. Different types of by 2035. Google reportedly reached a trailing twelve-month (TTM) PUE of 1.09 on