Pros and cons of UPS 'eco-mode' operation for data centers

April 23, 2015
Complex data center systems include a mix of IT equipment, transformers, transfer switches, and other possible non-IT loads are less predictable in their response to infrequent and unusual power events, writes Schneider Electric's Neil Rasmussen.

A recent technical white paper from APC-Schneider Electric notes how "many newer UPS systems have an energy-saving operating mode known as 'eco-mode' or by some other descriptor. Nevertheless, surveys show that few data centers actually use this mode, because of the known or anticipated side-effects. Unfortunately, the marketing materials for these operating modes do not adequately explain the cost/benefit tradeoffs," adds the brief's executive summary.

"The use of eco-mode entails risks," writes Schneider Electric's Neil Rasmussen, the paper's author. "Eco-mode introduces a number of new modes of operation of the data center, and reduces power protection. Current IT equipment is much more resilient to power variations than the IT equipment of prior generations, suggesting that this equipment should operate reliably using eco-mode. However, complex data center systems comprised of a mix of IT equipment, transformers, transfer switches, and other possible non-IT loads are less predictable in their response to infrequent and unusual power events, and their compatibility with eco-mode is less certain. These considerations have greatly limited the use of eco-mode in real data centers in the past, and are likely to continue to do so."

The white paper goes on to demonstrate that, generally speaking, a UPS system's eco-mode operation provides a reduction of approximately 2% in data center energy consumption, and explains the various limitations and concerns that arise from eco-mode use. Situations where these operating modes are recommended and contra-indicated are also described.

View/Download the white paper.

Sponsored Recommendations

Power up your system integration with Pulse Power - the game-changing power delivery system

May 10, 2023
Pulse Power is a novel power delivery system that allows System Integrators to safely provide significant power, over long distances, to remote equipment. It is a Class 4 power...

The Agile and Efficient Digital Building

May 9, 2023
This ebook explores how intelligent building solutions can help businesses improve network infrastructure management and optimize data center operations in enterprise buildings...

Constellation™ Power Delivery System Configurator

Oct. 24, 2023
Your Customized Power Solution in Just a Few Clicks! Use this configurator to calculate what you need for a Constellation power delivery system..

Constellation™ - Explore power and data products

Oct. 24, 2023
Discover the Essentials for Building Your Power and Data System!