The development of solar power generation system in Xintian rainwater pump house and flood storage tank can be illuminated by LED light strips
Since the rural villages in Hong Kong are located in low-lying areas, the rainwater cannot be drained out of the way, and it is easy to cause flooding problems. Therefore, the Department launched the Village Flood Control Plan as early as the late 1980s, adding flood protection dikes in the villages to prevent rainwater from flowing into the villages, and also adding rainwater collection. The system temporarily collects rainwater in the flood storage tank. When the water level rises to the preset water level, the water pump of the pumping station will automatically turn on and pump the rainwater out of the drainage channel outside the flood control embankment. The San Tin Stormwater Pumping Station and Flood Storage Tank is one of the 27 village flood control schemes currently in operation by the Department. The purpose is to reduce the flooding of Tsing Lung, Fan Tin, On Lung, San Lung, Tung Chun Wai, Wing Ping and Yan Shou Wai. Flooding risk in 7 low-lying villages.
In addition to solving the flooding problem, the DSD has also actively utilized the plant space to develop renewable energy in recent years. At present, the largest solar photovoltaic system in Hong Kong was put into operation at the Siu Ho Wan Sewage Treatment Works at the end of 2016. Lu Zhenlong, a senior engineer of the Electrical and Mechanical Engineering Department of the Drainage Services Department, said that different solar power generation devices were also installed in the San Tin stormwater pumping station and the stormwater storage tank. It has the largest area, and the San Tin Stormwater Pumping Station is also one of the sites visited by the Department’s ecological conservation guided tour, so we hope to promote the concept of carbon reduction and sustainable development to the public by installing a solar power system.”
Two solar trees provide lighting and mobile phone charging
The two solar trees in the San Tin Stormwater Pumping Station are one of the solar power generation installations. They were exhibited and used at the Drainage Services Department's exhibition area at the 2018 Hong Kong Flower. Lv Zhenlong pointed out that each solar tree consists of 12 flexible solar panels, each with an installed capacity of 360 watts, and the electricity generated will be stored in batteries, which will supply power to the LED strips at the bottom of the branches when the sky is dark. There are also 3 wireless chargers installed on the seats of each solar tree, and citizens participating in the guided tour can charge their mobile phones with solar power.
In addition to the solar tree, there is also a flexible solar power generation system composed of 108 solar photovoltaic panels on the cover of the screw pump groove of the water inlet of the Xintian rainwater pumping station, with an installed power generation capacity of about 9 kilowatts. Curved and light, it is very suitable for installation on the slot cover that is not suitable for load-bearing; another step-on solar power generation system installed on the pedestrian passage of the maintenance platform of the rainwater pump room is composed of 92 solar photovoltaic panels, and its installed capacity of power generation about 2 kilowatts, the step-on solar panels can bear the weight of an average adult and have anti-skid functions. The two power generation systems can generate a total of 10,000 kWh of electricity per year.