Google's best practices for data center efficiency, Part 4: Utilize free cooling

A recent series of videos takes viewers through the top 5 recommended best practices for energy efficiency from Google's data center experts. "There are many simple design choices that you can apply to both small and large data centers to improve the efficiency of a data center facility," notes the company.

The fourth video in the series introduces the concept of free cooling, explains why it is an important consideration for data centers, and provides some examples of the technique that have been implemented at Google data centers.