Jiangsu is taking the lead in photovoltaic power generation. A solar energy heating system converts solar energy into thermal energy which can be used to heat cold water to a higher temperature, meeting demand for hot water in production and people's daily life. Based on its structure, solar energy heating systems can be divided into integral solar water heaters and split solar water heaters, which are mainly used in the form of household split heat collection and heat supply, centralized heat-collection and split household heat-supply, or centralized heat-collection and heat-supply. The solar energy heating systems in Jiangsu are mainly installed on the roof or balcony wall.

Solar energy water heating systems can be used in a wide range of residential and public buildings, especially hospitals, swimming centers and other public facilities with relatively large demand for hot water. However, it is of great importance to integrate each component of solar energy heating systems into the building to maximize efficiency and reliability.

Key projects include:

1. Nanjing Gulou Hospital

2. Changzhou University Campus: Domestic Hot Water Energy Conservation Project

3. Meidi Community, Yangguang, Yangzhou