Investigate the computer server option
Some companies do not use standard computers. Instead, their workers use stripped-down, low-power PCs that are linked to a central server that handles all the data processing and storage.
If your business hosts a computer server like this, it can use a lot of energy and generate a lot of heat. This type of infrastructure no longer has to be based in your workplace. Companies with a good internet connection can use a virtual server that is based off-site.
The company hosting your virtual server takes on the responsibility of optimising its performance and you get the benefit of reduced energy and cooling costs.