In electric power: all Generation Companies, Distribution Utilities, Suppliers, Aggregators, End-users, the TRANSCO or its Buyer or Concessionaire, IPP Administrators, and other entities authorized by the ERC to participate in the WESM in accordance with the Act [Section 4(uuuu), Rules and Regulations to Implement Republic Act No. 9136, Entitled “Electric Power Industry Reform Act of 2001”]
