Description
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 (ie. 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.
