15:14 | 29/03/2017 Science - Technology
(VEN) - Vietnam is one of countries with the highest electricity growth in the world, about 13.7 percent a year, higher than 8.1 percent a year in Thailand, 6.57 percent a year in India and 10.25 percent a year in China. Given that hydropower has almost reached its full potential, gas resources have become exhausted, and the cost of renewable energy remains high, the development of coal-fired power plants plays a vital role in the country’s energy security.
At a recent Ho Chi Minh City seminar on coal-fired power technology and the environment, experts said that coal-fired power has to be the main development direction.
However, environmental issues need to be addressed. With moderate investment capital, large power output, and short construction time, the development of coal-fired power plants seems reasonable.
Prof. Truong Duy Nghia, the chairman of the Vietnam Science and Thermal Technology Association, said that coal-fired power plants have a long history, not only in Vietnam but in the world. Given that nuclear power has been shelved in Vietnam, the development of coal-fired power plants is now viewed as the way to go.
However they also have disadvantages, such as using large volumes of coal to produce electricity (accounting for 60 percent of production costs) and discharging waste into the environment.
Le Thi Ngoc Quynh, the deputy head of Vietnam Electricity (EVN)’s Science and Technology Department, said that the unit currently manages 19 thermal power plants, including 11 coal-fired power stations. She confirmed that treatment systems of hazardous waste, ash and wastewater have been upgraded with advanced technologies.
Mitsubishi Hitachi Power Systems (MHPS)’s representative under Japan’s Mitsubishi Heavy Industries (MHI) also said that with the application of the air quality control system (AQCS) and the flue-gas desulfurization (FGD) system, comprehensive treatment of waste for thermal power plants is possible. The MHPS has installed more than 1,700 AQCS and 300 FGD systems for power plants in the world.
Phuong Hoang Kim, the deputy head of the General Directorate of Energy under the Ministry of Industry and Trade, said that domestic coal-fired power plants currently use world-class modern treatment technologies. The General Directorate of Energy will continue to collect information and propose the application of the most advanced technologies to minimize hazardous emissions into the environment, he said.
To meet higher energy demand for economic growth and personal use, Vietnam’s power system must generate more than
63,000MW by 2020, over 87,000MW by 2025 and 120,000MW by 2030. Thermal power is expected to provide capacity of
26,000MW by 2020, 47,600MW by 2025 and 55,300MW by 2030.