Mr. Ngo Son Hai
Reporter: In 2017, EVN was very successful in promoting the application of S&T in management and operation of the power system. What is its efficiency, Sir?
Mr. Ngo Son Hai: In 2017, EVN decided to select the theme of the year “Promoting S&T.”
EVN’s information technology infrastructure has been strengthened to ensure information security and safety. Technological applications in production and investment have also been enhanced. EVN has completed and applied the replication of management system for technique and operation of power plant, power grid in all its units, applied the management software for construction investment projects. The units have further installed modern equipment and devices for operation, repair and experiment of power grids; deployed un-manned substations, applied hotline repair technology. These activities help reduce the duration of power outage due to grid maintenance and repair.
EVN has completed upgrading the information system of power user management; perfected application systems serving activities of customer care centers at all its power corporations, finalized monthly power delivery and receipt on power metering database, collected remote metering data for 100% its public and specialized substations.
Reporter: Could you tell us about the progress of deploying un-manned substation model and its benefits to the Power sector?
Mr. Ngo Son Hai: In 2017, EVN put 104 110kV un-manned substations (accounting for 16.9%) into operation at total 616 ones; 264 other 110kV substations (accounting for 42.9% were shifted to the mode of totally remote control, gradually reducing the number of operation staffs to become un-manned substations; 18 substations (accounting for 16.7%) out of 108 220kV ones were also remotely controlled.
The target set by 2020 that 100% of the 110kV substations, 60% of the 220kV substations to be remotely controlled and un-manned will be certainly achieved. The shifting substations in to un-manned ones has significantly increased the productivity of EVN’s member units, more flexibly changed the operation mode of the power grid in normal operation mode and in case of incidents, the restoration will be conducted more promptly, contributing to improve power supply stability and reliability for customers.
Reporter: Smart power grid is considered as crucial solution to reducing power loss. Could you tell us about the deployment progress of the Group’s smart grid projects?
Mr. Ngo Son Hai: EVN has actively deployed the Master Scheme of smart grid development under the decision of the Ministry of Industry and Trade. In which, the Scheme for study and development of SCADA system in Viet Nam power system has been implemented and brought great efficiency in power system load dispatch, creating benefits: Operating the power system in real time to improve the safety, reliability, stability, at the same time contribute to optimally and effectively operating the power system; Automating the adjustment of voltage, frequency of the power system to ensure the quality of power; Reducing the amount of power that cannot be supplied to customers, bringing more revenue for EVN; Reducing distance transmission and minimizing power loss from transmission grid. In addition to the benefits of operating the power system, the SCADA system is very effective for operating the competitive electricity market.
The Master scheme for smart grid development has been under effective implementation by EVN, achieving its objectives and properly meeting the roadmap for smart grid development in Viet Nam under the direction of the Prime Minister.
Reporter: Thank you so much!