Western Power may exempt a Market Participant responsible for a Transmission Connected Generating System from complying with Chapter 3A and Appendix 12 of the ESM Rules. Exempt generators are listed below. File Attachment Expand All | Collapse All Exempt generators Document Exempt generator - ALCOA_KW_IL Facility - Effective 24 February 2026 0.49 MB 23 Mar 2026 Document Exempt generator - Collie Power Station (Collie G1) - Effective 11 November 2025 0.28 MB 23 Mar 2026 Document Exempt generator - WEST_KALGOORLE_GT3 - Effective 17 January 2025 to 27 June 2025 0.41 MB 11 Feb 2025 Document Exempt generator - Extension - MUJA_G6 - Effective 1 March 2024 0.29 MB 20 Mar 2024 Document Exempt generator - MUJA_G6 - Effective 15 November 2022 0.28 MB 25 Nov 2022 Document Exempt generator - PPP_KCP_EG1 - Effective 12 December 2021 0.28 MB 15 Dec 2021 Document Exempt generator - MUJA_G5 - Effective 24 June 2021 0.28 MB 29 Jun 2021 Main navigation Links Electricity System and Market Rules