Data Center Configuration
- Situating your hosting space at the center of a building rather than right against an external building wall provides some isolation from outside temperatures, for instance, so your cooling system won't have to work as hard on hot days.
- Placing cooling infrastructure near heat-producing hardware, a practice known as close-coupled cooling. Compared to traditional Data Center designs, where large air handlers attempt to cool large sections of the hosting space, close-coupled cooling requires less fan energy to project cooling where it's needed and reduces unwanted opportunities for chilled air and server exhaust to mix. This approach and the inefficiency that comes with mixing Data Center airflows are covered in Chapter 5.
- Streamlining your structured cabling design by adopting a distributed physical hierarchy. A distributed design uses significantly fewer cabling materials and improves the cooling airflow. This design and a detailed look at the reduced length of cable runs it offers are presented in Chapter 6, "Cabling Your Way to a Greener Data Center."
- Latitude: Various parts of the world receive more or less sun exposure than others, which affects how much solar energy can be collected.
- Climate: Overcast or stormy weather reduces the amount of sun that a photovoltaic system is exposed to. Nearby snowy surfaces can actually boost performance by reflecting more light onto a solar array, but only if the array itself isn't covered with snow.
- Orientation: Photovoltaic components should be installed to receive maximum exposure to the sun. Avoid obstructions to the system such as trees or other structures especially during peak collection hours, when the sun appears highest in the sky.
- External air quality: The more contaminants in the air, the less solar energy that reaches a solar array.