At present, 100% of new buildings are designed according to energy-saving standards, but there are still non energy-saving stocks in the city Public buildings The area is about 76.3 million square meters, including about 7.36 million square meters of large public buildings. In order to encourage all kinds of public buildings to actively participate in energy-saving renovation, the government will set up a special fund of 10 million yuan each year for building energy-saving demonstration projects. In 2019, due to the implementation of energy efficiency improvement, special measures were introduced, and the high award subsidy for a single project could reach 5 million yuan.
The exterior wall of the building changes from red clay brick to gray extruded polystyrene board, and the external window is replaced by aluminum alloy window from single glass iron window, with better thermal insulation effect. Zhou Yaping, an engineer of Jiangsu Shuobai Construction Technology Co., Ltd., who was responsible for the project, said, "The reconstruction of exterior walls and windows can greatly reduce the load of indoor air conditioners. For the reconstruction of air conditioning systems, the original split air conditioners will be replaced by multi split air conditioners with better energy-saving effects, and the heat recovery efficiency will reach 60%. Air conditioners alone can save 50% of the original electricity costs."
Energy saving transformation also further tap the potential. For example, more than 60 sets of outdoor landscape lighting will be uniformly changed to solar lamps, and 3 solar water heaters will be added to the supporting canteen to reduce power consumption; Water saving transformation: water saving sanitary appliances are used to replace the original sanitary appliances, and the water efficiency level is reduced to Level 3.
What is striking is that roof greening is also set in this transformation to alleviate rainwater roof overflow, effectively protect the roof structure, keep the building warm in winter and cool in summer, and save energy consumption. The whole building is green and becomes a real green ecological building. Qinhuai District Court has a total building area of 12661.7 square meters. It is estimated that after this transformation, 170000 kilowatt hours of electricity can be saved a year, with an energy saving rate of 25%.
Vigorously promoting the energy contract management mode will not only reduce the dependence of reconstruction projects on government finance, but also promote the development of building energy conservation and high quality. The healthy growth of energy-saving service enterprises is crucial to the sustainable development of urban building energy conservation. In order to cultivate more local energy-saving service companies, we are currently testing the "green finance" financing method. Many banks are willing to provide loans for enterprises that reduce carbon emissions, among which Bank of Jiangsu can provide loans 20% lower than the benchmark interest rate.
