NDLI: Are Energy Management Systems Cost Effective?

Content Provider	IEEE Xplore Digital Library
Author	Guntermann, Alfred E.
Copyright Year	1972
Abstract	While the market for energy management systems (EMS) has been exploding, there are many indications that the pendulum of high expectations may have swung too far. A simple seven-day time clock can usually provide 80-95 percent of the potential savings of many EMS features. For several hundred additional dollars, a small microprocessor based time clock with features such as automatic holiday and daylight savings adjustments, optimal start, and four separate load stop/start schedules (ventilation, heating, and air conditioning, indoor lights, and outdoor lights) can be purchased which can increase the savings an additional 5-20 percent on most buildings. Owners of multiple building systems or large commercial and industrial buildings can often justify a complex EMS with increased load scheduling capability. However, EMS features such as duty-cycling and demand limiting are usually overrated in their energy savings capability, not only because slowing down the fans can save more energy than cycling them, but also because duty cycling can cause personnel discomfort and equipment maintenance problems. Moreover, any temperature control modifications which save energy can usually be installed without an EMS for less initial cost and with an equivalent energy savings. Additional expenses for EMS features such as temperature monitoring and remote set point adjustment are not usually of value if a building's heating, ventilating, and air conditioning (HVAC) system is operating properly. EMS features such as metering and report logs can be useful diagnostic tools in the hands of a qualified individual, but often they provide data diarrhea.
Sponsorship	IEEE Industry Applications Society
Starting Page	616
Ending Page	625
Page Count	10
File Size	3205461
File Format	PDF
ISSN	00939994
Volume Number	IA-18
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1982-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Energy management Costs Medical services Clocks Job shop scheduling Heating Air conditioning Microprocessors Processor scheduling Ventilation
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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