Research on configuration of photovoltaic energy supply based on building energy demand—Take a hotel building in mountainous area of Yanqing as an example

Taking a hotel building in the mountains area of Yanqing as an example, this paper studies the energy supply configuration of photovoltaic systems based on building energy demand. According to building energy consumption characteristics, this paper establishes a building energy consumption model, and analyses the energy intensity of the building and its peak-valley distribution. Taking into account the construction land, the mountain environment and energy characteristics, the study adopts the photovoltaic system as the renewable energy production system. This paper configures the installed capacity of the photovoltaic system based on the off-season peak load, off-season valley load, peak-season peak load and peak-season valley load of building energy consumption, carries out economic and technical analysis according to the investment payback period and the annual absorption rate, and chooses the renewable energy supply scheme that uses the off-season valley load as the reference load of photovoltaic installed capacity, while the insufficient power is matched with wind power so that the renewable energy system can maintain a high absorption rate.