Network Working Group J. Parello Internet-Draft Cisco Systems, Inc. Intended Status: Informational September 15, 2011 Expires: February 15, 2012 Energy Management Framework draft-parello-eman-definitions-01 Status of this Memo This Internet-Draft is submitted to IETF in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet- Drafts as reference material or to cite them other than as "work in progress." 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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. Expires February 15, 2012 [Page 2] Internet-Draft September 2011 Table of Contents 1. Introduction............................................... 3 2. Terminology................................................ 4 Energy Management...........................................4 Energy Management System (EnMS).............................5 ISO Energy Management System................................6 Energy......................................................6 Power.......................................................6 Demand......................................................6 Power Quality...............................................7 Electrical Equipment........................................7 Non-Electrical Equipment (Mechanical Equipment).............7 Energy Object...............................................7 Electrical Energy Object....................................8 Non-Electrical Energy Object................................8 Energy Monitoring...........................................8 Energy Control..............................................8 Energy Management Domain....................................8 Energy Object Identification................................9 Energy Object Context.......................................9 Energy Object Relationships.................................9 Aggregation Relationship...................................10 Metering Relationship......................................10 Power Source Relationship..................................10 Proxy Relationship.........................................11 Dependency Relationship....................................11 Energy Object Parent.......................................11 Energy Object Child........................................11 Power State................................................11 Manufacturer Power State...................................12 Power State Set............................................12 Nameplate Power............................................12 3. Security Considerations....................................12 4. IANA Considerations........................................12 5. Acknowledgments............................................13 6. References.................................................13 Normative References.......................................13 Informative References.....................................13 1. Introduction Within Energy Management there are terms that may seem obvious to a casual reader but in fact require a rigorous and sourced Expires February 15, 2012 [Page 3] Internet-Draft September 2011 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 take 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 there were multiple items from [IEEE100], [IEC60050] or [ISO50001], there were all included. 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] NOTE: Energy Management is a system 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. Expires February 15, 2012 [Page 4] Internet-Draft September 2011 Example: A set of computer systems that will poll electrical meters and store the readings Energy Management System (EnMS) 1. An Energy Management System is congruent to a Network Management System (NMS) and is a combination of hardware and software used to administer a network with the primarily purpose being Energy Management. Reference: Adapted from [1037C] Example: A single computer system that polls data from devices using SNMP 2. An Energy Management System (IOS-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. Reference: [ISO50001] Example: 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. NOTE: 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). Expires February 15, 2012 [Page 5] Internet-Draft September 2011 ISO Energy Management System Energy Management System as defined by [ISO50001] Reference: herein Energy 1. 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). Reference: [IEEE100] 2. Energy is the capacity of a system to produce external activity or perform work Reference: [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. NOTE 1: typically kilowatts NOTE 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. Expires February 15, 2012 [Page 6] Internet-Draft September 2011 Reference: [IEEE100] 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, 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 Expires February 15, 2012 [Page 7] Internet-Draft September 2011 Electrical Energy Object An Electrical Energy Object (EEO) is an Energy Object that is a piece of Electrical Equipment Reference: herein, Electrical Equipment 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 measurements from Energy Objects to aid in Energy Management. NOTE: This could include Energy, Power, Demand, Power Quality, Context and/or Battery information. Reference: herein Energy Control Energy Control is a part of Energy Management that deals with modifying or setting the state of Energy Objects. NOTE: Typically in order to optimize or ensure its efficiency. Reference: herein Energy Management Domain An Energy Management Domain is a name or name space that logically groups Energy Objects into a zone of Energy Management. NOTE: Typically, this zone will have as members all EO's that are powered from the same source. Reference: herein Expires February 15, 2012 [Page 8] Internet-Draft September 2011 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 is one main meter, would comprise an Energy Management Domain. 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. NOTE: 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. Reference: herein Energy Object Relationships Energy Objects may have functional relationships to each other within an Energy Management Domain. NOTE 1: One Energy Object will provide a capability or functional value in the relationship and another will be the receiver of the capability. NOTE 2: These capabilities could include Aggregation, Metering, Power Source, Proxy and Dependency. Reference: herein Expires February 15, 2012 [Page 9] Internet-Draft September 2011 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. NOTE 1: An Energy Object may be aggregated by another Energy Object(s). NOTE 2: 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. Reference: Adapted from [SQL] Metering Relationship An Energy Object may measure the Energy of another Energy Object(s) and is referred to as a Metering Relationship. NOTE: An Energy Object may be metered by another Energy Object(s). 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. NOTE: An Energy Object may be powered by another Energy Object(s). Reference: herein Example: a PDU provides power for a connected host. Expires February 15, 2012 [Page 10] Internet-Draft September 2011 Proxy Relationship An Energy Object that provides Energy Management capabilities on behalf of another Energy Object so that is appears to be Energy Aware is referred to a Proxy Relationship. NOTE: An Energy Object may be proxied by another Energy Object(s). 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. An Energy Object may be dependent on another Energy Object(s). Reference: herein Example: A Switch chassis with multiple line cards Energy Object Parent An Energy Object Parent is an Energy Object that provides one or more of the Energy Object Relationships capabilities. Reference: herein Energy Object Child An Energy Object Child is an Energy Object that has at least one Energy Object Relationship capability provided by another Energy Object. Reference: herein Power State A Power State is a way to classify an (setting on an Energy Object (e.g., on, off, or sleep). Expires February 15, 2012 [Page 11] Internet-Draft September 2011 NOTE: A Power State can be viewed as one method for Energy Control Reference: herein Manufacturer Power State A Manufacturer Power State is a device-specific way to classify a (non)operational implemented on an Energy Object. 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. NOTE: This is typically determined via load testing and is specified by the manufacturer as the maximum value required to operate the device. This is sometimes referred to as the worst- case Power. The actual or average Power may be lower. The Nameplate Power is typically used for provisioning and capacity planning. Reference: herein 3. Security Considerations None 4. IANA Considerations None Expires February 15, 2012 [Page 12] Internet-Draft September 2011 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?punu mber=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/welcome?openfor m [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 http://www.dmtf.org/sites/default/files/standards/docum ents/DSP1027_2.0.0.pdf [TMN] "TMN Management Functions : Performance Management", ITU-T M.3400 [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 Expires February 15, 2012 [Page 13] Internet-Draft September 2011 Authors' Addresses John Parello Cisco Systems, Inc. 3550 Cisco Way San Jose, California 95134 US Phone: +1 408 525 2339 Email: jparello@cisco.com Expires February 15, 2012 [Page 14]