On March 19, construction was in full swing at the site of the Guizhou Dawan 2×660MW low calorific value (CFB) coal-fired power project in Xinzhai Village, Dawan Town, Zhongshan District, Liupanshui City. The main structures are now fully completed, with towering boiler houses and neat plant buildings standing tall. Installation and commissioning work for the two generating units are advancing rapidly. As a key project in the provincial and municipal "14th Five-Year Plan" for power development, the project includes the construction of 2×660MW high-efficiency ultra-supercritical circulating fluidized bed (CFB) coal-fired generating units designed for low calorific value fuel. It is also equipped with environmental protection facilities such as flue gas desulfurization, denitrification, and dust removal systems that meet ultra-low emission standards, with provisions made for future heating supply.

The project utilizes the world's first-of-its-kind boiler and leading-edge technology specifically designed to process low calorific value, hard-to-burn solid materials like coal gangue, coal slime, and middlings. Its annual designed coal consumption is approximately 4.3 million tons. In terms of technological innovation, "low" and "ultra" are the project's most distinctive features. The "low" aspect represents the resource utilization model that turns waste into value—materials once considered waste, such as low calorific value coal, are now becoming the primary fuel for power generation. Annually, the project is expected to consume 2.331 million tons of middlings, 1.272 million tons of coal slime, and 636,000 tons of coal gangue, effectively addressing the issue of low utilization rates of such materials locally and forming a circular economy industrial chain of "coal mining—washing and processing—waste-to-power."

The "ultra" aspect highlights the project's high-efficiency and clean energy "hard power." It adopts internationally advanced ultra-supercritical parameter technology, with boiler outlet steam parameters reaching 29.4 MPa/605°C/623°C, resulting in power generation efficiency far exceeding that of traditional units. Compared to subcritical units, ultra-supercritical units more effectively convert thermal energy into electrical energy, resolving the contradiction between low fuel quality and high power generation efficiency requirements in low calorific value coal power generation.

Currently, the first unit is expected to complete its initial steam blowing by April and undergo a 168-hour full-load test run in May before commencing operation. Installation of the second unit's equipment is largely finished, with operations scheduled to begin in October this year. Once fully operational, the project will generate approximately 6 billion kilowatt-hours of electricity annually, with expected average annual sales revenue of around 2.5 billion yuan.