The Raritan Blog

What California’s Title 24 2013 Energy Efficiency Standards Mean for Your Data Center

Posted on April 18, 2014 by Michael Bord

California Title 24 2013 Energy Efficiency StandardsCalifornia’s Title 24 2013 energy efficiency standards will go into effect on July, 1 2014. Prior to 2013 California data centers were considered exempt from Title 24, but that’s no longer the case as most data centers will now require:

  • Economizers in small computer rooms in buildings that have economizers
  • Prohibiting reheat in computer rooms
  • Prohibiting non-adiabatic humidification in computer rooms
  • Limiting power of fan systems serving computer rooms to 27 watts/kBtuh of net sensible cooling capacity
  • Variable speed controls on all chilled water fan systems and all direct expansion (DX) systems over 5 tons serving computer rooms.
  • Containment in large, high density data centers with air-cooled computers

(Note: There are a couple of economizer exemptions you can view here)

The greatest benefit the new standards provide come in energy savings.  According to a study conducted by the California Statewide Utility Codes and Standards Program, a prototypical building that measures 20,000 sq ft and whose design IT load is 100 W per sq ft will save $520 per square foot, per year by meeting the new requirements. This amounts to $10,500,000 total yearly energy savings. 

Other significant non-energy related benefits derived from the new law will include: better computer performance as a result reduced hot spots, less fan noise due to variable speeds, improved comfort for workers since there’s no need to overcool, and backup cooling capacity from economizers should CRAH or CRAC units fail. 

However, there are potential drawbacks to the new requirements as well.  In the event of a CRAC failure, airflow containment creates a shorter window during which to get the unit up and running again before exceeding safe operating temperatures (this is true even with economizers – which will be dependent on California temperatures within a range of 64.4°F to 80.6°F – serving as backup cooling systems). 

Additionally, using economizers introduces outside air which may inadvertently admit gaseous contaminates like dust and pollen, and/or introduce higher humidity air that can lead to condensation.  Nonetheless, the new mandates are a positive step toward creating energy efficiency guidelines that may eventually have far reaching implications for data centers nationwide.

In fact improved data center environment monitoring will allow facility managers to overcome any potential drawbacks and meet requirements. In order to meet requirements for having variable speed fan speed systems and limiting power of fan systems, data centers will have to employ temperature sensors to cold aisle containments that can feed back to a BMS or DCIM software solution, that autonomously starts fans at predetermined speeds, as and when needed.

Better data center monitoring will also negate potential drawbacks. Airflow sensors can monitor flow rates of cooling and hot air return to ensure cooling and containment systems are functioning optimally. While humidity sensors can help data centers to maintain proper humidity levels, especially when drawing external air through a system of economizers.

California data centers may also wish to build upon energy savings achieved through the new energy code by implementing a DCIM monitoring solution that, in addition to collecting environment data and alerting data center managers to potential issues, can also lead to efficient IT device utilization, and intelligent power distribution.

Other Blog Posts

Mobile App For Your KX IV-101
Posted on October 15, 2019
What Is Environmental Monitoring?
Posted on September 18, 2019
Different Types of Rack PDUs
Posted on September 10, 2019
Power Monitoring And Metering
Posted on August 28, 2019
Virtual Power Button on the KX IV-101
Posted on August 27, 2019

View all Blog Posts


Upcoming Events

West 2019
February 13 - 15  •  San Diego, CA
Data Center World Global 2019
March 19 - 22  •  Phoenix, AZ
Data Center Dynamics NY
April 9 - 10  •  New York, NY
NAB 2019 - National Association of Broadcasters Show
April 6 - 11  •  Las Vegas
Interop 19
May 20 - 23  •  Las Vegas, NV

View all Events

Latest Raritan News

Raritan’s New KVM-over-IP User Station Brings 4K Performance and Productivity to Remote Equipment Access
Posted on September 18, 2019
Raritan’s New 4K Ultra HD KVM-over-IP Switch Wins Best of Show Award at NAB
Posted on May 21, 2019
Raritan Unveils KVM-over-IP Switch with Enhanced Performance and 4K Ultra HD
Posted on April 4, 2019
Raritan Announces New SmartSensors™ for Accurate Insights on Data Center Environmental Health
Posted on January 28, 2019
Raritan Extends Reach of Remote Server Management with New KVM Product
Posted on November 26, 2018

View all news