Rule participant classes
The WEM Rules define a number of rule participant classes. The following table summarises these classes and details the corresponding registration requirements. A rule participant can belong to more than one class, except where this is explicitly restricted.
| Person | Registration requirements |
|---|---|
| Owns, controls, or operates a transmission or distribution network in the SWIS. | Must register as a network operator, except in the following situations (in which case registration is optional):
|
| Owns, controls, or operates a generating facility with a rated capacity of greater than 10 MW that is connected to a network in the SWIS. |
Must register as a market generator unless AEMO has exempted the person from the requirement to register (in which case registration is optional). A person who intends to own, control, or operate such a generator may also register. |
| Owns, controls, or operates a generating facility, with a rated capacity of less than or equal to 10 MW, but greater than 0.005 MW, which is connected to a network in the SWIS. | Has the option to register as a market generator, but this is not compulsory. A person who intends to own, control, or operate such a generator may also register. |
| Sells or intends to sell electricity to customers in the SWIS. |
Must register as a market customer, unless AEMO has exempted the person from the requirement to register (in which case registration is optional). A person who intends to sell electricity to consumers may also register. |
| Any other person who sells or purchases electricity, or another service contemplated by the WEM Rules, to or from AEMO. | Registration as either a market generator or market customer, as determined by AEMO, is compulsory, unless AEMO has exempted the person from the requirement to register (in which case registration is optional). |
| System management | Automatically registered as System Management. |
| AEMO | Automatically registered as AEMO. |
| IMO | Automatically registered as the IMO. |