​​​​​The Distribution System Owner Unit (DAO) is responsible for the construction and maintenance of the Distribution Network and installation of meters for consumers and producers.

The overall obligations of the DAO include developing and maintaining an economical, efficient, coordinated, safe and reliable distribution system, which responds adequately to people's electricity requirements, while paying proper attention and care to the protection of the environment.

The DAO's responsibilities include the following:

  • Construction works for the expansion, reinforcement and maintenance of the Distribution Network and the Telecommunications Network.

  • Distribution Network planning, monitoring and maintenance works.

  • Keeping up with technological developments in electrical, electronic and telecommunications equipment for the Distribution Network.

  • Maintaining adequate stocks of materials and equipment to fulfil expansion, upgrading and/or maintenance requirements of the Distribution Network.

  • Calibration of meters by the Meter Repair & Testing Centre (MRTC).


The DAO main activities are:

  • Expansion, reinforcement, upgrading and maintenance of the Distribution Network.

  • Installation of overhead power lines and underground cables to connect consumers to the electrical grid.

  • Installation of meters, laying/joining of cables, construction and commissioning of distribution substations.

  • Installation of Street Lighting in new developments or expansions of the network.

  • Disconnection and reconnection of consumers by order of the Distribution System Operator.

  • Detection, investigation and repair of faults.

  • Definition of Codes of Practice and Construction Practices as well as Distribution Network Technical and Procedures Manuals.

  • Review of technical specifications due to changes to International Standards or improved technology or changes to the use of specific materials.

  • Evaluation of tenders and management of contracts relating to the supply of materials, the provision of services and projects.

  • Carrying out material quality checks in accordance with European and International Standards.

  • Carrying out Type Tests at independent testing labs and routine/acceptance testing at manufacturers' plants.

  • Checking materials upon delivery to the EAC stores and network testing.

  • Safety regulations.

  • Supply Chain Management.


  • Planning, monitoring and management of all Distribution Network maintenance works.

  • Carrying out annual and biennial transmission substation maintenance.

  • Planning and maintenance of the overhead Distribution Network, including pruning and inspection/repairs of earthing connections.

  • Writing of Maintenance Manuals and Maintenance Codes of Practice.

  • Evaluation of tenders and material, service and project contract management.

  • Safety regulations.

  • Fleet management.


  • Studies, specifications, telecommunications and electronic equipment management.

  • Design, installation, operation, maintenance, repair and upgrading of Electronics, Telecommunications, Fire detection/extinguishing and Protective Security systems.

  • Management of Strategic Alliances in Telecommunications.

  • Provision of technical support to other units of the EAC and Cyprus Transmission System Operator.

  • Management of Telecommunications and Electronic Equipment installation, operation and maintenance projects.

  • Faults investigation and repairs to telecommunications and electronic equipment.

  • Evaluation of tenders and material, service and project contract management.

  • Operation of the electronic equipment lab.​ 

  • Preparation of tenders.

  • Publication of tenders for goods, services and projects.

  • Preparation, checking, approval and publication of tenders.

  • Appointment of Evaluation Committees or Evaluation and Negotiation Committees.

  • Preparation and checking of Comparative Price Tables.

  • Preparation of Evaluation Reports.

  • Approval by the decision-making body and awarding of contracts.

  • Preparation and publication of results.

  • Maintenance of purchase and contract Archives.

  • Preparation, checking, approval and issuing of Orders/Contracts.

  • Safeguarding of Tenders, Contracts and Evaluation Reports.

  • Contract Management.

  • Management of Letters of Guarantee and insurance policies.​