Luo Ming installs photovoltaic panels

Do rooftop photovoltaic panels reduce indoor heat gain?

Rooftop photovoltaic panels can serve as external shading devices on buildings, effectively reducing indoor heat gain caused by sunlight. This paper uses a numerical model to analyze rooftop photovoltaic panels' thermal conduction, convection, and radiation in hot summer areas as shading devices.

How does the Chinese government promote residential PV installation?

In addition to the subsidy policy, the Chinese government also uses publicity, demonstration, and other policies to guide residents to install residential PV.

How many photovoltaics are installed in China?

Unfortunately, although the number of households in China has increased to about 500 million, by the end of 2021, only 873,000 pieces of photovoltaic equipment have been installed, and the installation rate is only 1.7% [ 32 ], far from reaching the policy target [ 24 ].

Does panel shading affect the ideal photovoltaic configuration?

A shading factor was introduced by several researchers to identify the ideal configuration of photovoltaic panels for a particular installation area. The study highlighted that panel shading significantly impacts determining the ideal photovoltaic configuration.

Can a photovoltaic outbuilding be installed in a bungalow?

According to Regulations of the People’s Republic of China on property management, the installation of photovoltaic outbuildings in bungalows’ only requires the consent of the owner of the single-family building, while to install in buildings requires the consent of the owners’ congress of the community [ 31 ].

How to install photovoltaic panels on a rooftop?

The rooftop installation of photovoltaic panels can be accomplished using three mounting methods: independent support, enclosed attachment, and forced cooling. However, the enclosed attachment method may lead to temperature concentration and reduced photovoltaic performance.