Solution section
Architecture
How the market, system operator, networks and participants fit together.
Architecture
A zonal market typically contains:
- day-ahead and intraday markets;
- bidding zones;
- cross-zonal capacity calculation;
- market coupling;
- transmission-system operators;
- balancing mechanisms;
- redispatch;
- ancillary services;
- separate distribution-network operation.
The wholesale optimisation represents transfer constraints between zones but generally not every constraint within a zone.
That distinction is the defining architectural abstraction.