94% of ash and slag is consumed in 2021
Currently, EVN owns 12 coal-fired power plants with a total installed capacity of 12,678MW. On average, each year, thermal power plants consume about 35-40 million tons of coal, equivalent to about 7-10 million tons of generated ash and slag.
In 2021, the total volume of generated ash and slag is 7.34 million tons, the total consumption volume is 6.89 million tons, accounting for 94% of the generated volume. The ash and slag consumption rate in 2021 increased to the highest level since 2015.
EVN Deputy General Director Nguyen Tai Anh speaks at the conference
EVN Deputy General Director Nguyen Tai Anh said: To get the above results, in recent years, the Prime Minister has paid special attention to the ash and slag of thermal power plants, of which the Prime Minister has issued Decision No. 1696/QD-TTg dated 23 September 2014, Decision No. 452/QD-TTg dated 12 April 2017, Directive No. 08/CT-TTg dated 26 March 2021 on accelerating the treatment and use of ash, slag and gypsum of thermal power plants. In addition, with the drastic direction of Ministries and sectors, the support of localities having coal power plants and the cooperation of partners, EVN's coal power plants have made great strides in consuming ash and slag. From a consumption rate of 33% in 2015, increasing to 94% in 2021.
Currently, all EVN's thermal power plants have obtained certificates of ash and slag quality that meet Vietnamese standards for use as construction materials, unburnt materials, additives, leveling materials and foundation materials, meets environmental regulations and is considered “common industrial solid waste” and is managed as a commodity according to the provisions of Decree 08/2022/ND-CP dated 10 January 2022 and Circular 02/2022/TT-BTNMT of the Ministry of Natural Resources and Environment.
EVN has issued a sample project for treatment and consuming ash, slag and gypsum and a sample invitation for ash and slag treatment. The units have organized to select and sign short/long-term ash, slag and gypsum consumption contracts with receiving and consuming ash and slag partners.
EVN actively seeks new ash and slag consumption markets, especially for power plants in Vinh Tan area, such as shipping by sea to North and South markets, solutions to use ash and slag as road foundation, using ash and slag as material for leveling in the area.
The conference took place in Binh Thuan
Strive to consume all ash and slag by 2023
The ash and slag consumption market will grow more and more. Besides the traditional markets such as using ash and slag as building materials, additives, unburnt materials, new markets such as leveling materials are increasing. In addition, the export market of ash and slag to foreign countries is also being tested and deployed. The goal of consuming 100% of the generated ash and slag is completely achievable shortly.
To achieve the goal of consuming all generated ash and slag in its affiliated thermal power plants in 2023, EVN proposes to the Prime Minister to consider and approve preferential and peculiarity mechanisms in the use of ash and slag, helping to further promote the ash and slag consumption rate at Vinh Tan Power Center in particular as well as at all coal power plants in the country in general.
Mr. Ta Tuan Anh, Deputy Head of EVN Technical - Production Department presented a report at the conference
In the long term, EVN proposes to the Prime Minister to direct relevant state management agencies to promulgate a mechanism for investors of traffic projects and construction works to receive and use thermal-power ash and slag as material for leveling, highway foundation as some advanced countries in the world have been applying.
EVN also proposes to the Ministry of Transport and the Ministry of Construction to soon issue guidance on norms, prices, construction and acceptance of projects using thermal-power ash and slag in traffic and construction works.
EVN's thermal power plants will create maximum favorable conditions for contractors within the plant's power scope to receive, transport and consume ash and slag. Typically, Vinh Tan 2 Thermal Power Plant has upgraded the oil port to receive ash and slag transported by sea ships. Currently, Vinh Tan 4 Thermal Power Plant is studying and supplementing the seaport planning to be able to export ash and slag by sea.