3The *National Gas Access (WA) Act 2009* s. 59(1) came into operation on 1 Jan 2010, see *Gazette* 31 Dec 2009 p. 5327.

3 The *National Gas Access (WA) Act 2009* s. 59(1) came into operation on 1 Jan 2010, see *Gazette* 31 Dec 2009 p. 5327. 4 The *Gas Pipelines Access (Western Australia) Act 1998* was renamed as the *Energy Arbitration and Review Act 1998* by the *National Gas Access (WA) Act 2009* s. 26. 5 The *Electricity Industry Amendment (Distributed Energy Resources) Act 2024* s. 4 (to the extent it inserts the definition of Coordinator) and s. 9 were deleted by the *Electricity Industry Amendment (Alternative Electricity Services) Act 2024* s. 27 before they purported to come into operation. Defined terms *[This is a list of terms defined and the provisions where they are defined. The list is not part of the law.]* **Defined term Provision(s)** access 3(1) access agreement 103 access arrangement 39A(1), 103 AES code of practice 2(1) AES customer contract 3(1) affected person 59B, 59U(1) alternative electricity service 3(1) appropriate amendment 53(3), 64(3) approved policy 60 approved scheme 90 arbitrator 3(1) arrangement 120ZF(1), 127(1) associate 115(6), 120S(1) Authority 3(1) Board 3(1) civil monetary liability 120ZA(1), 126(1) class 59B Code 3(1), 107(1) code matter 39(2c) code of conduct 78 commencement day 46(1) committee 78 Competition Principles Agreement 2(1) confer 121(1) connect 57 connected facility 3(1) connected facility operator 124D contestable annual volume 129L contestable proportion 129L contestable supply 129L contravene 124I cooling-off period 48(1) Coordinator 3(1) corporation 54A(1), 60 costs 129L covered network 3(1) covered Pilbara network 3(1) customer 3(1), 90 customer contract 90 daily amount 118(3), 120V(3) designated area 67 distribution licence 3(1) distribution system 2(1), 124D distribution system market 124D distribution system market operator 124D distribution system operator 124D efficient cost of supply 129B electricity 3(1) electricity corporation 3(1) electricity data 124H(1) electricity data service 124H(1) electricity data system 124H(1) Electricity Generation and Retail Corporation 3(1) electricity infrastructure 3(1) electricity marketing agent 78, 90 electricity network 3(1) Electricity Networks Corporation 3(1) electricity ombudsman 90, 92(1) electricity services 3(1) electricity system 3(1) electricity system and market rules 3(1), 123(1) embedded network 3(1) entity 120ZA(1) existing operator 46(2) extension and expansion policy 60 gas pipelines access provisions 130(1) generating works 3(1) generation costs 129L generation licence 3(1) governance participant 121(1) historical generation costs 129L integrated regional licence 3(1) interconnected Pilbara network 120 interconnected Pilbara system 120 issue 120ZH(1), 129(1) last resort supply plan 67 licence 3(1), 60 licence area 3(1) licensee 3(1), 45(5), 71(1), 90 marketing 78 matter 134(1) NBU 129K network infrastructure facilities 3(1) network service provider 103, 121(1) network user 103, 124D non-standard contract 3(1) officer 120ZA(1), 126(1) operate 3(1) participant 120ZA(1), 121(1) period of exclusivity 26(3) Pilbara access agreement 120 Pilbara electricity objective 119(2), 120 Pilbara ISO 120, 120W(1) Pilbara network 3(1) Pilbara Networks Access Code 3(1), 120G(1) Pilbara network service provider 120 Pilbara networks participant 120 Pilbara networks rules 3(1), 120K(1) Pilbara network user 120 Pilbara region 3(1) premises 57 preparing entity 120ZA(1) prescribed customer 129L prescribed form of contract 54A(1) prescribed period 61(1) prescribed provision 45(1) prescribed voltage 3(1) public authority 40(1) quality 3(1) Regional Power Corporation 3(1) registration 3(1) registration framework 59B registration holder 3(1) regulated retail tariffs 129B relevant contract 54A(1) relevant corporation 45(5) relevant day 39A(1), 54A(1) relevant instrument 135 relevant interest 40(1) reliability 3(1) retail licence 3(1), 67 retail licensee 47 reviewable decision 59B, 59U(1) RPC standards 39A(1) security 3(1) services 3(1) service standards 39A(1), 129D(4), 129N(5) small use customer 3(1) South West interconnected system 3(1) specified 136(1) stand-alone power system 3(1) standard form contract 3(1) State electricity objective 3(1), 3A(1) storage activity 3(1) storage works 3(1) subsidiary 3(1) supplier of last resort 67, 69(1) supply 3(1) system 60 tariff customers Sch. 1 cl. 1 Tariff Equalisation Account 129B tariff equalisation contribution 129B temporary access contribution 129L Temporary Access Contribution Account 129L termination date 129L total annual volume 129L transitional matter 136(1) transmission licence 3(1) transmission system 3(1) user 129B, 129F(5), 129L Western Power Corporation 45(1) wholesale electricity market 121(1) This work is licensed under a Creative Commons Attribution 4.0 International Licence (CC BY 4.0). To view relevant information and for a link to a copy of the licence, visit www.legislation.wa.gov.au. Attribute work as: © State of Western Australia 2025. By Authority: GEOFF O. LAWN, Government Printer