Link them up-

“Virtual desktop infrastructure (VDI) is ideal for computers that carry the same image. A network uses less energy than standard PCs and laptops.”

https://www.nationalgridus.com/Long-Island-NY-Business/Energy-Saving-Tips/Office-Engagement-and-Equipment-Tips?fbclid=IwAR3IP4AtH2avaRoKGWx5n72Z1daOKRHXsJ64Ef7z7Kz29VANmgchNPlnhGk