Re: [smartgrid-interest] Draft Charter - Energy Market InformationExchange

Michel --

Good point for discussion.

My view is that the key interactions are the home/business/internet
side, and that for bandwidth-limited devices/networks the important
thing is to have a consistent information model of what is exchanged,
whether it's the messages (which may or may not have additional
content) or more information.

So if the information model as expressed in the XML is consistent with
smaller/slower connections, the information can be communicated and
acted on in a consistent way across homes, buildings (in general,
suggesting non-homes), industrial facilities, and so forth.

There are a number of alternate serializations of XML that take less
bandwidth, and a communications aggregator/gateway could do a variety
of things with the information streams. Small embedded devices can
implement an entire web services stack, and may be usable in the future
in home control/gateway environments -- the lesson from the DMTF
(Distributed Management Task Force) is that a fairly complex management
stack is now implemented in every NIC/ethernet card at a cost
differential of roughly $1.

The full information model may be (initially) of less use in the Home
to Grid space, but some of my talks and papers discuss use of forward
price information and bids for homes, so additional information from
the EMIX model will be useful in the future.

(see, for instance, my presentation (and paper with Toby Considine)
from Grid-Interop 2008 on the page at
http://www.grid-interop.com/2008/default.asp#session_712 .  The
presentation PDF seems messed up, at least on a Macintosh - font
issues  - but can be found from
http://www.coxsoftwarearchitects.com/Pages/C_Energy.html and directly
at
http://www.coxsoftwarearchitects.com/Resources/Grid-Interop2008/Cox%2BConsidine%20Grid-Interop%202008%20Slides.pdf

)

Thanks!

bill cox

Michel Kohanim wrote:

  
  
  

  

  
Hi
Bill,

  
 

  
This
is an excellent start and one which I truly believe in.

  
 

  
One
comment though: this document assumes that all transactions will
be done using XML/SOAP/Web Services (I understand the connection to
OASIS). In
this respect, we are already assuming that each actor has enough
bandwidth to
support such transactions, right? What are the provisions for bandwidth
constrained actors?

  
 

  
Again,
this is an excellent start and thanks for putting the
document together.

  
 

  
With
kind regards,

  
 

  

  
********************************

  
Michel
Kohanim, C.E.O

  
Universal
Devices, Inc.

  
 

  
(p)
818.631.0333

  
(f)
818.708.0755

  
http://www.universal-devices.com

  
********************************

  

  
 

  

  

  
From:
William Cox
[mailto:] 

  Sent: Monday, March 30, 2009 7:43 PM

  To: 

  Cc: Toby Considine

  Subject: [smartgrid-interest] Draft Charter - Energy Market
Information
Exchange

  

  

  
 

  
I've attached a draft charter for the proposed
OASIS Energy
Market Information Exchange (eMIX) Technical Committee.

  

This TC is intended to address the prices, market characteristics, and
other
information for energy trading, buying, and selling. I was inspired to
start
working on this from discussions in and around the NIST
Building-to-Grid and
Industry-to-Grid Domain Expert Working Groups, and continued interest
from
first round reviewers and from people attending GridEcon 2009 in
Chicago (http://www.gridecon.com
-- slides are
available on line at the agenda link).

  

>From my perspective as an enterprise software architect, this fits
into a
simple three layer stack with interoperation protocols (how
to
communicate) as the fundamental layer. I put the Energy Interoperation
TC/OpenADR work here, with parts of the message payload in the next
layer.

  

The middle layer is what is communicated -- for
markets, things
like price, quantity, units, time (of use), and characteristics of the
energy
sold -- from source (e.g. gas-fired plants, coal, solar, coal plant
with
scrubbers, wind) to derived information (e.g. carbon data), and also
trading
information (is this a bid, a price quote, an accepted transaction?).

  

The goal is to create an XML vocabulary that can be used in a broad
range of
market exchanges with minimal differences (and where there are
differences,
arranged in a simple way) for the various consumers of the information.

  

The third layer is the market design and definition; since markets have
varying
degrees of complexity I'm leaving this alone for now :-). This is a
potentially
complex area, and an interesting one. Accordingly, I'd like to
carefully define
the EMIX work to focus on layer two.

  

I invite you to participate in a discussion on how to improve this
charter, as
well as the sorts of characteristics that are important to energy
markets.

  

If you would like to be listed on the charter when submitted as a
supporter,
please contact me or Toby Considine.

  

Comments to me or (preferably) to the list. Please reference line
numbers where
appropriate.

  

Thanks!

  

  
-- 

  William Cox 

Email: 
  

Web: http://www.CoxSoftwareArchitects.com
  

+1 862 485 3696 mobile 

+1 908 277 3460 fax