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     Network Working Group
     Internet-Draft                                 J. Parello
     Intended Status: Informational        Cisco Systems, Inc.
     Expires: June 4, 2012                    December 4, 2011
     
     
     
                   Energy Management Terminology
                 draft-parello-eman-definitions-04
     
     
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        and are provided without warranty as described in the
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     Abstract
     
        This document contains definitions and terms used in
        the Energy Management Working Group. Each term
        contains a definition(s), example, and reference to a
        normative, informative or well know source. Terms
        originating in this draft should be either composed of
        or adapted from other terms in the draft with a
        source. The defined terms will then be used in other
        drafts as defined here.
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     Table of Contents
     
        1. Introduction............................................. 3
        2. Terminology.............................................. 5
           Energy Management........................................ 5
           Energy Management System (EnMS).......................... 5
           ISO Energy Management System............................. 6
           Energy................................................... 6
           Power.................................................... 7
           Demand................................................... 7
           Power Quality............................................ 7
           Electrical Equipment..................................... 8
           Non-Electrical Equipment (Mechanical Equipment).......... 8
           Energy Object............................................ 8
           Electrical Energy Object................................. 8
           Non-Electrical Energy Object............................. 9
           Energy Monitoring........................................ 9
           Energy Control........................................... 9
           Energy Management Domain................................. 9
           Energy Object Identification............................ 10
           Energy Object Context................................... 10
           Energy Object Relationship.............................. 10
           Aggregation Relationship................................ 11
           Metering Relationship................................... 11
           Power Source Relationship............................... 11
           Proxy Relationship...................................... 12
           Dependency Relationship................................. 12
           Energy Object Parent.................................... 12
           Energy Object Child..................................... 12
           Power State............................................. 13
           Power State Set......................................... 13
           Nameplate Power......................................... 13
        3. Security Considerations................................. 14
        4. IANA Considerations..................................... 14
        5. Acknowledgments......................................... 14
        6. References.............................................. 14
           Normative References.................................... 14
           Informative References.................................. 14
     
     
     
     
     
     1. Introduction
     
        Within Energy Management there are terms that may
        seem obvious to a casual reader but in fact require a
     
     
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        rigorous and sourced definition.  To avoid any
        confusion in terms among the working group drafts,
        one glossary / lexicon of terms should exist that all
        drafts can refer to. This will avoid a review of
        terms multiplied across drafts.
     
        This draft will contain a glossary of definitions of
        terms that can be agreed upon by the working group
        outside of the context of drafts and then included in
        or sourced to this draft.
     
        Each term will contain a definition(s), a normative
        or informative reference, an optional example, an
        optional comment(s) listed a note(s).
     
        All terms should be rooted with a well-known
        reference. If a definition is taken verbatim from a
        reference then the source is listed in square
        brackets. If a definition is derived from a well-
        known reference then the source is listed as "Adapted
        from" with the reference listed in square brackets.
        If a defined term is newly defined here the reference
        will indicate as such by stating "herein" and if
        applicable list any composing terms from this
        document.
     
        When applicable the [IEEE100] was used as the
        preferred source. If a term was not available from
        [IEEE100], then [IEC60050] was used.  When these were
        multiple items from [IEEE100], [IEC60050] or
        [ISO50001], there were all included.
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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     2. Terminology
     
     
     
     Energy Management
     
       Energy Management is a set of functions for measuring,
       modeling, planning, and optimizing networks to ensure
       that the network elements and attached devices use
       energy efficiently and is appropriate for the nature
       of the application and the cost constraints of the
       organization.
     
       Reference: Adapted from [ITU-T-M-3400]
     
       Example: A set of computer systems that will poll
       electrical meters and store the readings
     
       NOTES:
       1. Energy management refers to the activities, methods,
          procedures and tools that pertain to measuring,
          modeling, planning, controlling and optimizing the
          use of energy in networked systems [NMF].
     
       2. Energy Management is a management domain which is
          congruent to any of FCAPS areas of management in the
          ISO/OSI Network Management Model [TMN]. Energy
          Management for communication networks and attached
          devices is a subset or part of an organization's
          greater Energy Management Policies.
     
     Energy Management System (EnMS)
     
       An Energy Management System is a combination of
       hardware and software used to administer a network
       with the primarily purpose being Energy Management.
     
       Reference: Adapted from [1037C]
     
     
     
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       Example: A single computer system that polls data from
       devices using SNMP
     
       NOTES:
       1. An Energy Management System according to [ISO50001]
          (ISO-EnMS) is a set of systems or procedures upon
          which organizations can develop and implement an
          energy policy, set targets, action plans and take
          into account legal requirements related to energy
          use.  An EnMS allows organizations to improve energy
          performance and demonstrate conformity to
          requirements, standards, and/or legal requirements.
     
       2. Example ISO-EnMS:  Company A defines a set of
          policies and procedures indicating there should
          exist multiple computerized systems that will poll
          energy from their meters and pricing / source data
          from their local utility. Company A specifies that
          their CFO should collect information and summarize
          it quarterly to be sent to an accounting firm to
          produce carbon accounting reporting as required by
          their local government.
     
       3. For the purposes of EMAN, the definition from
          [1037C] is the preferred meaning of an Energy
          Management System (EnMS).  The definition from
          [ISO50001] can be referred to as ISO Energy
          Management System (ISO-EnMS).
     
     ISO Energy Management System
     
       Energy Management System as defined by [ISO50001]
     
       Reference: herein
     
     Energy
     
       That which does work or is capable of doing work. As
       used by electric utilities, it is generally a
       reference to electrical energy and is measured in
       kilo-watt hours (kWh).
     
     
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       Reference: [IEEE100]
     
       NOTES
       1. Energy is the capacity of a system to produce
          external activity or perform work [ISO50001]
     
     Power
     
       The time rate at which energy is emitted, transferred,
       or received; usually expressed in watts (or in joules
       per second).
       Reference: [IEEE100]
     
     Demand
     
       The average value of power or a related quantity over
       a specified interval of time. Note: Demand is
       expressed in kilowatts, kilovolt-amperes, kilovars, or
       other suitable units.
     
       Reference: [IEEE100]
     
       NOTES:
       1. typically kilowatts
     
       2. Energy providers typically bill by Demand
          measurements as well as for maximum Demand per
          billing periods.  Power values may spike during
          short-terms by devices, but Demand measurements
          recognize that maximum Demand does not equal maximum
          Power during an interval.
     
     Power Quality
     
       Characteristics of the electric current, voltage and
       frequencies at a given point in an electric power
       system, evaluated against a set of reference technical
       parameters. These parameters might, in some cases,
     
     
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       relate to the compatibility between electricity
       supplied in an electric power system and the loads
       connected to that electric power system.
     
       Reference: [IEC60050]
     
     Electrical Equipment
     
       A general term including materials, fittings, devices,
       appliances, fixtures, apparatus, machines, etc., used
       as a part of, or in connection with, an electric
       installation.
     
        Reference: [IEEE100]
     
     Non-Electrical Equipment (Mechanical Equipment)
     
        A general term including materials, fittings, devices
       appliances, fixtures, apparatus, machines, etc., used
       as a part of, or in connection with, non-electrical
       power installations.
     
        Reference: Adapted from [IEEE100]
     
     Energy Object
     
        An Energy Object (EO) is a piece of equipment that is
        part of or attached to a communications network that
        is monitored, controlled, or aids in the management of
        another device for Energy Management.
     
        Reference: herein
     
     Electrical Energy Object
     
        An Electrical Energy Object (EEO) is an Energy Object
        that is a piece of Electrical Equipment
     
        Reference: herein, Electrical Equipment
     
     
     
     
     
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     Non-Electrical Energy Object
     
        A Non-Electrical Energy Object (NEEO) an Energy Object
        that is a piece of Non-Electrical Equipment.
     
        Reference: herein, Non-Electrical Equipment.
     
     Energy Monitoring
     
       Energy Monitoring is a part of Energy Management that
       deals with collecting or reading information from
       Energy Objects to aid in Energy Management.
     
       Reference: herein
     
       NOTES:
       1. This could include Energy, Power, Demand, Power
          Quality, Context and/or Battery information.
     
     
     Energy Control
     
       Energy Control is a part of Energy Management that
       deals with directing influence over Energy Objects.
     
        Reference: herein
     
       NOTES:
       1. Typically in order to optimize or ensure its
          efficiency.
     
     
     Energy Management Domain
     
        An Energy Management Domain is a set of Energy
        Objects.
     
        Reference: herein
     
        Example: All EEO's drawing power from the same
        distribution panel with the same AC voltage within a
        building, or all EEO's in a building for which there
     
     
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        is one main meter, would comprise an Energy Management
        Domain.
     
        NOTES:
        1. Typically, this set will have as members all EO's
          that are powered from the same source.
     
     
     
     
     Energy Object Identification
     
       Energy Object Identification is a set of attributes
       that enable an Energy Object to be: uniquely
       identified among all Energy Management Domains; linked
       to other systems; classified as to type, model, and or
       manufacturer.
     
       Reference: herein
     
     Energy Object Context
     
       Energy Object Context is a set of attributes that
       allow an Energy Management System to classify the use
       of the Energy Object within an organization.
     
       Reference: herein
     
       NOTES:
       1. The classification could contain the use and/or the
          ranking of the Energy Object as compared to other
          Energy Objects in the Energy Management Domain.
     
     
     Energy Object Relationship
     
        An Energy Objects Relationship is a functional
        association between one or more Energy Objects
     
        Reference: herein
     
        NOTES
     
     
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        1. Relationships can be named and could include
          Aggregation, Metering, Power Source, Proxy and
          Dependency.
     
        Reference: herein
     
     Aggregation Relationship
     
       An Energy Object may aggregate the Energy Management
       information of one or more Energy Objects and is
       referred to as an Aggregation Relationship.
     
       Reference: herein
     
       NOTES:
       1. Aggregate values may be obtained by reading values
          from multiple Energy Objects and producing a single
          value of more significant meaning such as average,
          count, maximum, median, minimum, mode and most
          commonly sum [SQL].
     
     Metering Relationship
     
        An Energy Object may measure the Power or Energy of
        another Energy Object(s) and is referred to as a
        Metering Relationship.
     
        Reference: herein
     
        Example: a PoE port on a switch measures the Power it
        provides to the connected Energy Object.
     
     Power Source Relationship
     
        An Energy Object may be the source of or distributor
        of Power to another Energy Object(s) and is referred
        to as a Power Source Relationship.
     
        Reference: herein
     
        Example: a PDU provides power for a connected host.
     
     
     
     
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     Proxy Relationship
     
        An Energy Object that provides Energy Management
        capabilities on behalf of another Energy Object is
        referred to a Proxy Relationship.
     
        Reference: herein
     
        Example: a protocol gateways device for Building
        Management Systems (BMS) with subtended devices.
     
     
     Dependency Relationship
     
        An Energy Object may be a component of or rely
        completely upon another Energy Object to operate and
        is referred to as a Dependency Relationship.
     
        Example: A Switch chassis with multiple line cards.
     
        Reference: herein
     
     
     Energy Object Parent
     
        An Energy Object Parent is an Energy Object that
        participates in an Energy Object Relationships and is
        considered as providing the capabilities in the
        relationship.
     
        Reference: herein
     
     Energy Object Child
     
        An Energy Object Child is an Energy Object that
        participates in an Energy Object Relationships and is
        considered as receiving the capabilities in the
        relationship.
     
        Reference: herein
     
     
     
     
     
     
     
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     Power State
     
        A Power State is a condition or mode of a device that
        broadly characterizes its capabilities, power
        consumption, and responsiveness to input.
     
        Reference: Adapted from [IEEE1621]
     
        NOTES:
     
        1. A Power State can be seen as a power setting of an
          Energy Object that influences the power
          consumption, the available functionality, and the
          responsiveness of the Energy Object.
     
        2. A Power State can be viewed as one method for
          Energy Control
     
     
     Power State Set
     
        A collection of Power States that comprise one named
        or logical grouping of control is a Power State Set.
     
        Reference: herein
     
        Example: The states {on, off, and sleep} as defined in
        [IEEE1621], or the 16 power states as defined by the
        [DMTF] can be considered two different Power State
        Sets.
     
     
     Nameplate Power
     
        The Nameplate Power is the maximal (nominal) Power
        that a device can support.
     
        Reference: herein
     
        NOTES:
     
        1. This is typically determined via load testing and
          is specified by the manufacturer as the maximum
          value required for operating the device.  This is
          sometimes referred to as the worst-case Power.  The
          actual or average Power may be lower.  The
     
     
     
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          Nameplate Power is typically used for provisioning
          and capacity planning.
     
     
     3. Security Considerations
     
        None
     
     4. IANA Considerations
     
        None
     
     
     5. Acknowledgments
     
        The author would like to thank the authors of the
        current working group drafts for the discussions and
        definition clarifications
     
     6. References
     
     Normative References
     
     
     Informative References
     
     
        [IEEE100] "The Authoritative Dictionary of IEEE
                Standards Terms"
        http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?pun
                umber=4116785
     
        [IEEE1621]  "Standard for User Interface Elements in
                Power Control of Electronic Devices Employed
                in Office/Consumer Environments", IEEE 1621,
                December 2004.
     
        [IEC60050] International Electrotechnical Vocabulary
                http://www.electropedia.org/iev/iev.nsf/welco
                me?openform
     
        [ISO50001] "ISO 50001:2011 Energy management systems -
                Requirements with guidance for use",
                http://www.iso.org/
     
        [DMTF] "Power State Management Profile DMTF  DSP1027
                Version 2.0"  December 2009
     
     
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                http://www.dmtf.org/sites/default/files/stand
                ards/documents/DSP1027_2.0.0.pdf
     
        [TMN] "TMN Management Functions : Performance
                Management", ITU-T M.3400
     
        [NMF] "Network Management Fundamentals", Alexander
                Clemm, ISBN: 1-58720-137-2, 2007
     
        [ITU-T-M-3400] TMN recommandation on Management
                Functions (M.3400), 1997
     
        [1037C] US Department of Commerce, Federal Standard
                1037C, http://www.its.bldrdoc.gov/fs-1037/fs-
                1037c.htm
     
        [SQL] ISO/IEC 9075(1-4,9-11,13,14):2008
     
     
     7. Authors' Addresses
     
     
      John Parello
      Cisco Systems, Inc.
      3550 Cisco Way
      San Jose, California 95134
      US
     
      Phone: +1 408 525 2339
      Email: jparello@cisco.com
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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