15-day Public Review for Energy Market Information Exchange (EMIX) Version 1.0

The OASIS Energy Market Information Exchange (eMIX) TC [1] members have  
produced an updated Committee Specification Draft (CSD) and submitted this  
specification for 15-day public review:

Energy Market Information Exchange (EMIX) Version 1.0

Committee Specification Draft 04 / Public Review 04

08 September 2011

Specification Overview:

This specification defines an information model and XML vocabulary for the  
interoperable and standard exchange of prices and product definitions in  
transactive energy markets: 

* Price information

* Bid information

* Time for use or availability

* Units and quantity to be traded

* Characteristics of what is traded 

This specification is one of three related OASIS technical works in  
progress. For a graphical view of the relationships, see  
http://collaborate.nist.gov/twikisggrid/bin/view/SmartGridEMIXissuesPage on  
the NIST Smart Grid collaborative site. 

(a) Web Services Calendar 1.0 (WS-Calendar Technical Committee page is  
http://www.oasis-open.org/committees/ws-calendar) is the common XML  
vocabulary for expressing schedules. EMIX uses this vocabulary to express  
energy schedules and prices; implementers and other standards are also using  
the WS-Calendar Committee Specification 1.0. 

(b) Energy Market Information Exchange 1.0 (EMIX Technical Committee page  
is http://www.oasis-open.org/committees/emix) is the TC that has approved  
this public review. EMIX is the common XML vocabulary for expressing market  
information including tenders, market transactions, prices and product  
definitions for implementers and other standards. EMIX uses the WS-Calendar  
vocabulary to express schedule information, and the EMIX vocabulary is used  
by Energy Interoperation and other standards and implementations. 

(c) Energy Interoperation 1.0 (Energy Interoperation Technical Committee  
page is http://www.oasis-open.org/committees/energyinterop) is the common XML  
vocabulary for expressing curtailment events, price communication, as well as  
Web services definitions for interactions using the information payloads. The  
Energy Interoperation TC is planning its third Public Review in September  
2011. 

Please refer to line numbers in the PDF version of the specification when  
providing comments. 

TC Description:

The OASIS Energy Market Information Exchange (eMIX) TC was chartered to  
define standards for exchanging energy characteristics, availability, and  
schedules to support the free and effective exchange of information. Better  
communication of actionable energy prices will help enable and expand  
efficient markets that satisfy the growing demand for lower-carbon,  
lower-energy buildings, net zero-energy systems, and supply-demand  
integration that take advantage of dynamic pricing. The TC has addressed  
requirements consolidated by NAESB and the Smart Grid Interoperability  
Panel's Priority Action Plan 03 Working Group. 

Direct participants have included representatives of Southern California  
Edison, the ISO-RTO Council, California ISO, Midwest ISO, New York ISO,  
Lawrence Berkeley National Laboratory, Enernex, UISOL, members of the UCAIug  
OpenADR Task Force, the OpenADR Alliance, and representatives of the National  
Institute of Science and Technology, Schneider Electric, Siemens AG, EPRI,  
OATi, The Open Geospatial Consortium, LonMark International, Lockheed Martin,  
EnerNOC, Trane, CPower, Microsoft, JPMorganChase, TIBCO, University of North  
Carolina, Alstom Power, and experts in energy markets and in cross-domain  
integration and information modeling. 

This work is closely related to OASIS WS-Calendar 1.0 and OASIS Energy  
Interoperation 1.0. 

Public Review Period:

The public review starts 4 October 2011 and ends 19 October 2011. The  
specification was previously submitted for a 15-day public review on 8 July  
2011 [2]. This 15-day review is limited in scope to changes made from the  
previous review. 

Changes are highlighted in the diff-marked PDF file [3]. A summary of  
changes to the specification and to schemas is provided below [4]. 

This is an open invitation to comment. OASIS solicits feedback from  
potential users, developers and others, whether OASIS members or not, for the  
sake of improving the interoperability and quality of its technical work.

URIs:

The prose specification document and related files are available here:

PDF (Authoritative):

http://docs.oasis-open.org/emix/emix/v1.0/csprd04/emix-v1.0-csprd04.pdf 

HTML:

http://docs.oasis-open.org/emix/emix/v1.0/csprd04/emix-v1.0-csprd04.html 

Editable source:

http://docs.oasis-open.org/emix/emix/v1.0/csprd04/emix-v1.0-csprd04.doc

XML Schemas:

http://docs.oasis-open.org/emix/emix/v1.0/csprd04/xsd/

ZIP distribution files (complete):

For your convenience, OASIS provides a complete package of the prose  
specification and related files in a ZIP distribution file. You can download  
the ZIP file here:

http://docs.oasis-open.org/emix/emix/v1.0/csprd04/emix-v1.0-csprd04.zip

Additional information about the specification and the OASIS Energy Market  
Information Exchange (eMIX) TC may be found at the TC's public home page  
located at:

http://www.oasis-open.org/committees/emix/

Comments may be submitted to the TC by any person through the use of the  
OASIS TC Comment Facility which can be accessed via the button labeled "Send  
A Comment" at the top of the TC public home page, or directly at:

http://www.oasis-open.org/committees/comments/form.php?wg_abbrev=emix

Feedback submitted by TC non-members for this work and for other work of  
this TC is publicly archived and can be viewed at:

http://lists.oasis-open.org/archives/emix-comment/

All comments submitted to OASIS are subject to the OASIS Feedback License,  
which ensures that the feedback you provide carries the same obligations at  
least as the obligations of the TC members. In connection with this public  
review of 'Energy Market Information Exchange (EMIX) Version 1.0 Committee  
Specification Public Review Draft 04', we call your attention to the OASIS  
IPR Policy [5] applicable especially [6] to the work of this technical  
committee. All members of the TC should be familiar with this document, which  
may create obligations regarding the disclosure and availability of a  
member's patent, copyright, trademark and license rights that read on an  
approved OASIS specification. OASIS invites any persons who know of any such  
claims to disclose these if they may be essential to the implementation of  
the above specification, so that notice of them may be posted to the notice  
page for this TC's work.

========== Additional references:

[1] OASIS Energy Market Information Exchange (eMIX) TC

http://www.oasis-open.org/committees/emix/

[2] Previous public review announcement:

08 July 2011:  
http://lists.oasis-open.org/archives/tc-announce/201107/msg00002.html

11 May 2011:  
http://lists.oasis-open.org/archives/tc-announce/201105/msg00000.html

17 November 2010:  
http://lists.oasis-open.org/archives/members/201011/msg00005.html

[3] Diff file

http://docs.oasis-open.org/emix/emix/v1.0/csprd04/emix-v1.0-csprd04-diff.pdf

[4] Summary of changes to Specification from Public Review 03 of EMIX 

(ignoring all metadata such as versions, dates, etc.) 

1) Normative reference to WS-Calendar updated to reference CS01 

2) First half of section 2.2 (Approach) completely re-written to remove

references to TEMIX 

3) Table 10-2, Power Contract Types revised and extended 

4) Section 12 renamed to "Profile for Transactive Energy EMIX" 

5) Spelling Errors corrected in Table 13-4 

6) Section 14, "Ancillary Services Products" re-written in entirety

to

use IRC-requested Ancillary Service type. 

7) Section 15, EMIX Warrants, entirely re-written 

8) Table 16-1, "Elements of Power Quality Warrant" description of

Schedule and Side changed, Quality Measure added 

9) Table 16-2, references to Quality Protocols updated 

10) Table 16-3, :Power Quality Indicators", definitions of Flicker (ST

and

LT) corrected. 

11) All UML illustrations in document re-generated 

Summary of changes to Schemas  

(ignoring all metadata such as versions, dates, external references, etc.)  

EMIX.XSD 

1) Updated GML Profile 0 as modified by OGC 2011/05 

2) EmixProduct: changed cardinality of currency, terms to allow

minOccurs=0 

3) EmixOption: changed cardinality of currency, terms to allow

minOccurs=0 

4) UidType: Corrected to use UpperCamelCase convention used for all  
Type

names. 

EMIX-TERMS.XSD 

5) Updated Definition of TERMS 

6) Added MarketContextName to StandardTermsType to meet IRC requirement.  

7) New top-level definition for MarketContextNameType 

EMIX-WARRANTS.XSD 

8) Eliminated Content and Controllability Warrant Types 

9) Modified Documentation of all Warrant Types 

10) Modifed all Warrant Types to extend emixBase rather than emixProduct  

POWER.XSD 

11) No changes 

POWER-PRODUCTS.XSD 

12) PowerProductDescription: unitEnergyPrice, powerItem, changes now

optional

(minOccurs=0) 

13) Added AncillaryServicesType to satisfy IRC requests with associated

Ancillary Services Names 

14) FullRequirementsPowerType: price, maximum power, minimum power now

optional (minOccurs=0) 

POWER-QUALITY.XSD 

15) Re-wrote documentation of Power Quality Warrant to make use clearer.  

16) Added optional QualityMeasure to top level of Power Quality Warrant

Type 

17) Expanded description of Quality Measure Type 

18) Corrected definitions of Flicker and changed internal element from  
Int

to Float 

RESOURCE.XSD 

19) Eliminated redefinition of mrid and referenced POWER.XSD defined  
type

thoughout schema 

RESOURCE.XSD 

20) Corrected definitions of Flicker and changed internal element from  
Int

to

Float 

SISCALE.XSD 

21) No changes 

[5] http://www.oasis-open.org/who/intellectualproperty.php

[6] http://www.oasis-open.org/committees/emix/ipr.php

http://www.oasis-open.org/who/intellectualproperty.php#s10.2.3

RF on Limited Terms

Best Regards,

/chet

----------------

Chet Ensign

Director of Standards Development and TC Administration

OASIS: Advancing open standards for the information society

http://www.oasis-open.org

Primary: +1 973-378-3472

Mobile: +1 201-341-1393