It saves not only electricity but also water! With the earth facing extreme weather threats, constant high temperatures and the depletion of water resources have become new challenges. According to data from the Water Resources Agency, rainfall in its reservoir's catchment area during the second half of last year (2020) was only 661 mm, the lowest in history. Taipower stated that in pursuing environmental sustainability, its corporate headquarters, Taipower Building, is leading by example. In addition to saving more than 1.6 million kWh of electricity each year, it has also designed a "Smart Water Resource Reuse System" that adopts circular and innovative concepts. Records show that as of 2018, it has recovered more than 9000 tons of water resources. This is equivalent to a total of 1.55 million flushes in a 6-liter water-saving toilet!

Located in Gongguan, Taipei, the Taipower Building is the headquarters of Taipower and the heart of Taiwan's power industry. Almost 40 years since its completion in 1982, this building is old but strong, and continues to pursue innovation in its environmental sustainability efforts. According to Taipower, to store water resources for reuse, the building management also requires "digital transformation." Hence it particularly appointed Taipower's electromechanical professionals to design a " Smart Water Resource Reuse System " that adopts smart, automation, and easy maintenance and management concepts. Through digital smart monitoring in the central control room coupled with digital water meters, big data, such as daily flushing water consumption; rainwater storage capacity; and rainfall in the northern region, are used to manage water supply and maximize the use of water resources. In addition, the system is fully automated. It can automatically filter, drain and replenish water. Even when rainfall is insufficient during the dry season, it can automatically replenish with tap water to ensure a safe water supply.

• In addition to fully adjusting the volume of water in faucets, the Taipower Building has also begun recovering the condensate generated by running air conditioners to provide a source of water for the building every day.

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• The Taipower Building has designed a "Smart Water Resource Reuse System." Through the central control room's smart digital monitoring coupled with digital water meters, big data, such as daily flushing water consumption; rainwater storage capacity; and rainfall in the northern region, are used to manage water supply.

Taipower explains that in 2014, it began paying attention to the storage and utilization of rainwater in the Taipower Building. It diverted rainwater from the top floor of the building to the basement raft-type foundation catchment for watering the garden. To further increase utilization rate, rainwater is also used for flushing toilets, which greatly reduced the consumption of tap water. Besides rainwater, in recent years, the condensate generated by running air-conditioners is also recovered to provide a source of water for the building every day. Moreover, in addition to creating sources, consumption should also be reduced. Hence Taipower Building has adjusted the water volume of its water faucets and at the same time refitted the building with water-saving toilets, which can save 30% of water consumption, thereby putting water conservation and green living into practice.

• As of 2014, rainwater is diverted from the top floor of the Taipower Building to the basement raft-type foundation catchment for watering the garden.

In addition to conserving water, Taipower also ensures the quality of water. Its water resources treatment process is a specially designed 5-step procedure, namely primary filtration, sedimentation, fine filtration, deodorization and disinfection. The process blocks all gravel and suspended solids, then adds an appropriate amount of chlorine for disinfecting. To provide employees with safer water, Taipower also regularly sends water to laboratories approved by the Environmental Protection Administration for quality inspection to ensure the sanitary quality of the water.

• Taipower's water resources treatment process is a specially designed 5-step procedure comprising primary filtration, sedimentation, fine filtration, deodorization and disinfection to block all gravel and suspended solids.

Since the construction of the "Smart Water Reuse System" in the Taipower Building was completed in 2018, tap water is not needed for flushing toilets and watering plants on an average of more than 100 days a year. Last year, the use of recycled water reached 2,658 tons and the recycling rate exceeded 4%. The total amount of water saved since 2018 has reached 9,502 tons.

Taipower indicated that in addition to its headquarters building, Taipower's Linkou, Tongxiao, Taichung and Xingda power plants have also simultaneously installed rainwater recovery systems. In 2018, a total of 230,000 tons of rainwater were recovered for reuse. The recovery of thermal power plant waste water as well as process and boiler flushing water also reached 2.17 million tons. Taipower's outstanding water-saving achievement won the U.S. LEED's green building Platinum Certification for Existing Building Renovation in 2018. In 2019 and 2020, it also won the Ministry of Economic Affairs' Water Conservation Excellence Award.

• In its pursuit of environmental sustainability, Taipower Building, Taipower's headquarters, is outfitted with a "Smart Water Resource Reuse System" that is designed with circular and innovative concepts. Since 2018, it has recycled more than 9,000 tons of water resources.

Spokesperson: Chang Ting-Shu, Chief Administrator

Telephone: (02)2366-6271/0936-625-552

Email: u742433@taipower.com.tw

Contact Person: Chen Ling-Hui, Deputy Director, Secretariat of the Board

Telephone: (02)2366-6303/0920-695-966

Email: u392151@taipower.com.tw