OASIS Mailing List ArchivesView the OASIS mailing list archive below
or browse/search using MarkMail.


Help: OASIS Mailing Lists Help | MarkMail Help

emix message

[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]

Subject: 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
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.

The prose specification document and related files are available here:

PDF (Authoritative):


Editable source:

XML Schemas:

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:


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:


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:


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


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

[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:

[3] Diff file

[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
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
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.)


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

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

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

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


5) Updated Definition of TERMS

6) Added MarketContextName to StandardTermsType to meet IRC requirement.

7) New top-level definition for MarketContextNameType


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


11) No changes


12) PowerProductDescription: unitEnergyPrice, powerItem, changes now

13) Added AncillaryServicesType to satisfy IRC requests with associated
Ancillary Services Names

14) FullRequirementsPowerType: price, maximum power, minimum power now
optional (minOccurs=0)


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

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

17) Expanded description of Quality Measure Type

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


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


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


21) No changes

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

[6] http://www.oasis-open.org/committees/emix/ipr.php
RF on Limited Terms
Best Regards,

Chet Ensign
Director of Standards Development and TC Administration
OASIS: Advancing open standards for the information society

Primary: +1 973-378-3472
Mobile: +1 201-341-1393

[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]