China's Kubuqi renewable energy base hits milestone with four cooling towers topped out

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A view of the four cooling towers at the northern section of the Kubuqi renewable energy base in north China's Inner Mongolia Autonomous Region. /CMG

Construction of four indirect air-cooling towers for a supporting coal-fired power project at the northern section of the Kubuqi renewable energy base in north China's Inner Mongolia Autonomous Region has reached a key milestone, with all four towers now topped out, the China Three Gorges Corporation said on Saturday.

The project is part of China's first batch of large-scale wind and photovoltaic power bases in desert, sandy and barren land areas. It is China's first renewable energy base in such regions with a planned capacity of 10 million kilowatts.

The project has adopted an innovative integrated layout combining the indirect air-cooling tower, chimney, flue gas desulfurization absorption tower and wastewater concentration tower into a "four-tower-in-one" structure. The design eliminates the need for a separate chimney, with the indirect air-cooling tower serving a dual function of cooling circulating water and discharging purified flue gas after desulfurization.

At present, wind power, photovoltaic power, concentrated solar-thermal power, supporting energy storage facilities and an ultra-high voltage direct current transmission project are under simultaneous construction at the northern section of the Kubuqi renewable energy base.

Once completed, the base is expected to transmit about 40 billion kilowatt-hours of electricity to the Beijing-Tianjin-Hebei region each year, supporting the region's transition toward greener economic and social development.