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Evaluating TVSS Energy-Saving Claims
May 1, 2004 | Updated: April 17, 2013
Transient voltage surge suppressors are intended to protect connected equipment from voltage surges, but some manufacturers and vendors are still promoting the long-discredited claims that these devices save energy.
Content type: Focus Report | Document ID: TAS-F-5 | Author: Dan Greenberg, Essie Snell
Microgrids 101
February 11, 2013
"Microgrid" has become a buzzword used loosely and out of context to generate hype and headlines. In this video, we provide basic definitions and context to assist you in cutting through the clutter to gain a better understanding of current technical and economic issues.
Content type: Tech Brief | Document ID: TAS-TB-4 | Author: Bryan Jungers
Making the Move to Continuous Power Quality Monitoring
June 26, 2012
Power quality (PQ) monitoring is typically implemented in commercial and industrial buildings on an as-needed basis. By contrast, continuous PQ monitoring takes a proactive approach, allowing facility managers to identify disturbances and pinpoint their origins before they do serious damage.
Content type: Research Brief | Document ID: BMS-RB-11 | Author: Bryan Jungers
Is Smart Grid 3.0 Almost Here?
January 24, 2011
Smart Grid 3.0 promises to allow bidirectional communication with all grid-connected devices directly across the power lines. Is the enabling technology just around the corner?
Content type: Research Brief | Document ID: IGS-RB-8 | Author: Bryan Jungers
Power Factor Controllers
January 2, 2003 | Updated: January 20, 2011
What is the energy-saving potential of a class of devices generically known as motor power factor controllers (PFCs)?
Content type: Ask E Source | Document ID: TAS-TN-1-03d | Author: Peter Criscione
Transient-Voltage Surge Suppression Systems
March 6, 2003 | Updated: January 20, 2011
Do you have any information on the energy-saving capabilities of transient-voltage surge suppression systems?
Content type: Ask E Source | Document ID: TAS-TN-3-03c | Author: Peter Criscione
Harmonics Caused by Variable-Speed Drives
November 18, 2009
Why do variable-speed drives create harmonics? What problems do harmonics cause?
Content type: Ask E Source | Document ID: TAS-AskES-14 | Author: Dan Greenberg
DC Power Distribution Cuts Data Center Energy Use
November 1, 2008
The Lawrence Berkeley National Laboratory led a demonstration project that showed that alternative, direct-current (DC)–based power distribution systems can reduce the total system energy use in a data center by 5 to 7 percent compared to the most efficient alternating current (AC) systems and by ...
Content type: Tech Brief | Document ID: CEC-TB-40 | Author: Peter Criscione
Uninterruptible Power Supplies
A Data Center Efficiency Opportunity
August 1, 2008
A detailed study characterized the efficiencies of various types of uninterruptible power supplies (UPSs) for data centers under a variety of operating conditions, proposed an efficiency label for UPSs, and estimated the current energy use of the existing stock of UPSs and the potential savings if ...
Content type: Tech Brief | Document ID: CEC-TB-45 | Author: Ira Krepchin
Residential Power Quality Conditioners
May 31, 2007
Do residential power quality conditioners save enough energy to be cost-effective?
Content type: Ask E Source | Document ID: TAS-TN-5-07a | Author: Peter Criscione
Energy Savings via Power-Factor Correction
June 28, 2006
Can residential, commercial, or industrial customers save energy and money by improving their power factor?
Content type: Ask E Source | Document ID: TAS-TN-6-06c | Author: Peter Criscione
Emerging Technologies for Bulk Energy Storage
July 1, 2004
There are a small number of emerging bulk energy storage technologies that hold varying degrees of promise in applications ranging from protection against very short duration power quality events to peak shaving and energy arbitrage. In our second annual report, we focus on the developmental status and ...
Content type: Core Report, Service Report | Document ID: ET-2 | Author: Dan Greenberg, Kristin Kamm, Ira Krepchin
Some Highlights From the 6th Annual E Source Distributed Energy Summit, July 7-8 Webcast
July 1, 2003
The 6th Annual E Source Distributed Energy Summit featured an array of speakers from many areas of the industry to cover distributed energy from a variety of perspectives. The speakers' general consensus on distributed energy (DE) was one of long-term optimism. There was agreement that ...
Content type: Research, Service Report | Document ID: DE-23 | Author: David Van Holde, Christine Hurley
Liquid Electricity: Flow Batteries Expand Large-Scale Energy Storage Market
June 1, 2002
Flow batteries are being commercialized and are attracting interest from the power business. Excitement about this relatively new electricity storage technology derives from flow batteries’ attributes: they are relatively inexpensive for batteries, highly scalable, and can optimize for either power ...
Content type: Research, Service Report | Document ID: DE-18 | Author: Chris Lotspeich, Yasushi Santo
Storage Technologies for Ride-Through Capability
May 1, 1999
The rising costs associated with power supply anomalies are causing a surge in demand from commercial and industrial businesses for modular energy storage systems capable of carrying large loads or even whole facilities through brief power sags or outages. This report assesses a host of new products ...
Content type: Research, Service Report | Document ID: PQ-3 | Author: Ira Krepchin, William Howe
