Microsoft Edge is getting dozens of power efficiency improvements in Windows 10 Anniversary Update

Microsoft is providing new information today about increases to the power efficiency of its Edge browser with the release of the upcoming Windows 10 Anniversary Update. Users will automatically receive these improvements once they’ve installed the update; there’s no special power-saving mode that needs to be enabled.
Also today, Microsoft is releasing benchmarks showing that Edge (specifically a fully patched version of the November update, Build 1511) is already more power-efficient