You might be in need of upgrading your servers to something new if they are getting old. Even if your servers are still performing well for you, there is the real possibility that more energy efficient servers are available. It is something to consider if you are looking to reduce energy costs.
This could be a help for sure. Of course, if you just recently purchased servers then it is not something you would want to do (buy all new servers). If your servers are pretty new than hopefully they are already pretty energy efficient.
Upgrade your servers
