On 16 December, according to CNOOC Fudao Limited (“CNOOC Fudao”), the mainframe construction of its circulating water modification project for Fudao Phase I has been successfully completed. 

As the mainframe construction of CNOOC Fudao’s entire optimization and modification project on energy conservation, the circulating water modification project for Fudao Phase I replaces a total of 7 circulating water pumps and 7 high voltage motors while modifies 6 wind turbines for cooling tower. Such project involves the largest amount of construction work among all 4 plants for circulating water and energy conservation modification and involves the most equipment and most complicated procedures. 

In this modification project, circulating water pumps were customized in accordance with the on-site condition, and approximately 20% of power has been saved. Web-based circulating water monitoring technology is adopted to monitor data such as the flow rate of circulating water, input and output temperature as well as pressure. Supply would be made based on demand with optimized deployment to attain energy conservation.

As measured, prior to modification, Fudao Phase I needs a total of 5 circulating water pumps with daily average power consumption of 119,200 kWh and 6 wind turbines for cooling tower with daily average power consumption of 12,700kWh for operation. After modification, only 4 circulating water pumps are required for operation to satisfy the needs of devices with daily average power consumption of 74,900 kWh, while all 6 wind turbines for cooling tower are driven by residual pressure of recycled water. 

　　Through modification, the circulating water system for Fudao Phase I could conserve energy of 57,000kWh daily, and thus energy of 18,810,000 kWh could be saved for a year, saving electricity fees of RMB13,730,000 and representing a power saving rate of 48.7%. Upon the completion of all 4 plants’ modification projects on circulating water and energy conservation devices, electricity fees of over RMB18,000,000 would be saved each year.