Efficiency Opportunities for Data Center Cooling. Semi-therm February 23, 2010 Santa clara, california
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February 23, 2010
Santa clara, california
Capturing efficiency opportunities in data centers has become a business imperative, allowing managers to extend the capacity of existing facilities, drive down costs, and deliver environmental quality benefits.
Mark Bramfitt, P.E.
No other utility loads look like this!
Utility Scale: Co-location, cloud and research
Federal EPA estimates that data centers consume ~2% of US electricity, and is on pace to double every five years.
Typical data centers have PUE of 2: half of energy use is for support equipment
Best in class DCs have PUE of 1.2 or so, largely by adopting best practices for cooling
Managing IT energy use turns out to be much tougher!
First two are best at build, next three are outstanding retrofit opportunities
Use of ambient environment to cool data centers.
Typically air-side only, but condenser cooling can be a great strategy alone or in tandem with air-side.
The Green Grid has a great on-line tool that calculates potential energy savings for implementing air-side economizer:
Yahoo, NY – “Chicken Coop” design uses building design and prevailing wind
Industry leaders are building centers with no mechanical cooling whatsoever
Great retrofit strategy for isolating hot and cold aisles.
VSDs on CRAC units modulate supply flow to match equipment needs.
The ultimate in “close loop” cooling, containerized data centers
A conceptual design from Microsoft, who along with Google are leaders in large-scale containerized data center deployment.
Strategy: move heat through liquid, from as close to the source as possible
Solid State Data Storage
Liquid Cooling Strategies
Virtualization 2.0 – Server Management
Virtualization 2.5 – IT Workload Management
Passive Cooling Strategies for IT Equipment
Modular Airflow Isolation
Optical Data Storage
Virtualization 3.0 – Holistic Data Center
Change in Power Delivery Voltage
Cooling Storage Systems
Proposed in 2003, this represents an “almost fan-less” morphology. CPU is effectively directly coupled to a liquid cooling system. Only secondary components are cooled using air.
Utilities throughout US are initiating and expanding energy efficiency programs for IT and data centers
Utilities can be regulated to deliver cost-effective services with lower environmental impacts.Why…
Energy efficiency, renewables, demand response, smart grid?
Energy efficiency programs have helped keep per capita electricity consumption in California flat over the past 30 years
IT industry not accustomed to thinking about efficiency
IT mangers not rewarded or penalized for energy use
Entrenched designs and operating schemes
Manage your own growth profile – take control of capacity needs
Dramatic short-term cost savings achievable with proven technologies and measures
Time is now to “reset” the IT energy use growth curve
IT’s role in delivering environmental improvements are immense
US leadership in IT industry, and by extension…
Mark bramfitt, p.e.
3055 Gough Street, #100
San Francisco, CA 94123
information technology utilities data centers energy efficiency demand response smart grid program design trainingstrategic engagement impact