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Subject: Transactive Use Cases
Attached
for discussion is a high level use case diagram for Transactive Energy as
developed in Enterprise Architect. TEMIX
USE CASE DIAGRAM This
is a high level diagram of use cases for the Transactive Energy Market
Information Exchange (TeMIX) model.
TeMIX is described in the TeMIX White Paper draft of the OASIS eMIX
Technical Committee. see: http://www.oasis-open.org/committees/download.php/37918/TeMIX_20100523.pdf
. The
two key objects in TeMIX are an Offer and a Transaction as shown in this
diagram. These objects also allow
for option offers and transactions that are DR-like. These objects also can be tailored to be
compatible with the CIM. The
high level structure of the markets is captured by Party, Location, Period and
Product objects. Parties can take
on many roles such as Customer, Generator, Marketer, LSE and Market Operator. Meters are identified by the Location
objects. Period objects have a
begin and end time and can be of any duration and can overlap. Products include Energy(Power) and
Ancillary Service products such as Spinning Reserves. The
Use Cases are organized as Registration, Pre-Transaction, Process-Transaction
and Post-Transaction Use Cases. The
key Process Transaction Use cases are ·
PostOffer - post and offer to other Parties or
Markets ·
GetQuotes - get price-quantity quotes including
forward price curves over time (i.e. dynamic forward retail prices). ·
AcceptOffer - accept an offer from other Parties
or Markets. Other Uses Cases interface with ISO/RTO LMP auction markets
or independent bid/ask markets. Signal Use Cases provide for exercising DR-like options and
communicating emergency signals. TeMIX provides a high level of abstraction for Offers and
Transaction that can be tailored to interface with existing ISO/RTO markets,
forward wholesale bilateral markets and exchanges, and utility retail tariffs
and programs. This design is intended for a high level of distributed
implementation by many participants and service providers. These use cases are a work in progress and it does not fully
reflect current work in eMIX, for example. Edward G. Cazalet, Ph.D. 101 First Street, Suite 552 Los Altos, CA 94022 650-949-5274 cell: 408-621-2772 |
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