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• Set quantifiable goals based on best practices.
• Introduce energy optimization as early as possible in the design phase to keep the
project focused and to keep costs minimized.
• Include integrated monitoring, measuring, and controls in facility design.
• Examine and benchmark existing facilities and then track your performance. Look
back over the data and look for any opportunities to improve performance.
• Evaluate the potential for onsite power generation.
• Make sure all members of the facility-operations staff get site-specific training,
including the identification and proper operation of energy-efficiency features.

As anyone who has tried to string network cabling through an old building knows, PART II
planning for the future can save a lot of time, energy, and money. The same philosophy is
true of cooling systems—it’s a good idea to plan for the future.
Selecting a technology that can scale to future needs is a critical part of your considerations.
Because if you do add more power to your system, you’ll need to add more cooling.
Most server manufacturers are working on solutions that bring refrigerant-based
cooling modulated into the rack to manage heat densities of 30 kW and higher. This will
make refrigerant-based systems compatible with the next generation of cooling strategies.
Your cooling system is such a huge portion of your datacenter that it really merits a lot
of your attention—not just to reduce your electricity bill, but also to mitigate your carbon
emissions. Spending time and effort to ensure you have a well-running cooling system will
help not only your organization but also the environment.
It isn’t just your machinery that can help reduce your impact on the environment. In the
next chapter, we’ll talk about some steps that your organization can take on a business level
that can mean less money spent and less pollution.