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Yim Tin Tsai, Sai Kung
2022-4-6
Rooftop of the Pier’s Stone House and Rooftop of Ching Po Primary School
112m2 (1205.6 sq. ft.)
Oblique rooftop
56 pcs
Monocrystalline
29.68 kWp
19,397 kWh
The Salt and Light Preservation Centre, established in 2011, is a local registered charity organization which is responsible in preserving and promoting the culture and ecological conservation of Sai Kung Yim Tin Tsai. Yim Tin Tsai is one of the few Hakka villages in Hong Kong, where the whole village is Catholic, it has a history of nearly three hundred years and was once inhabited by the Chan's family who were Hakka people. The St. Joseph’s Chapel is built in the village with more than 100 years of history, it is the best preserved village church in Hong Kong. Yim Tin Tsai is also famous for its salt-making. in its heyday, salt fields reached 6 acres of land, and its salt production was enough to supply all of Sai Kung. Villagers later gave up on salt-making, salt fields also turned into fish ponds. In 2010, the Salt and Light Preservation Centre revitalised some of the abandoned salt fields, preserving and reconstructing the salt fields’ original appearance.
In the 200 years since the village’s establishment, the development of the city has led to the village’s population change, villagers gradually moved out to live in downtown areas. After the last villager moved out in 1998, Yim Tin Tsai became an uninhabited island, but villagers would still return each year to participate in the Feast of Saint Joseph of Labour. In recent years, villagers have put effort into building a new Yin Tin Tsai, turning it into a conservation village combining culture, religion, ecology and tourism conservation. The Salt and Light Preservation Centre is exactly a non-profit organization which was voluntarily established by the villagers. Through the use of guided tours, workshops, thematic experiences, etc., more people are able to understand the meaningful values of the island, environmental conservation, and simple living, at the same time improving their physical and mental well-being.
The solar panels were installed on the rooftops of the Pier’s Stone House and the Rooftop of Ching Po Primary School’s New Classroom (Now Named Yim Tin Tsai Village History Centre). There are a total of 56 solar photovoltaic(PV) panels, with a system capacity of 29.68kWp. Their power generation in the first year was 19,397 kWh.
Information Source︰ Website of the Salt and Light Preservation Centre
Solar panels were installed on the rooftops of the Pier’s Stone House and the rooftop of Ching Po Primary School’s New Classroom (Now Named Yim Tin Tsai Village History Centre). As both buildings have a long history, the stress points of the frames that support the weight of the panels are attached on the edges of the rooftop (instead of directly under the solar panels), in order to reduce the rooftop’s load. These frames require additional material for construction.
As the building has a long history, the stress points of the frames that support the weight of the solar panel are located on the edges of the rooftop, to reduce the its load.
The Yim Tin Tsai Village History Centre was originally the only primary school in Yim Tin Tsai —— Ching Po Primary School. Ching Po Primary school was built in 1920 to provide education to children of Yim Tin Tsai, other nearby villages and fisherman. However, due to the relocation of villagers, the school was closed in 1997. In recent years, villagers have actively promoted the conservation and education works of Yim Tin Tsai, and carried out numerous repairment and improvement projects, which include turning the school into a History Centre and an exhibition hall.
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