Photovoltaic: is the abbreviation of solar photovoltaic power generation system, is a kind of use of the photovoltaic effect of the solar cell semiconductor material, will be the sun's radiation energy is directly converted into electrical energy of a new type of power generation system, there are two ways of independent operation and grid-connected operation.
At the same time, solar photovoltaic power generation system classification, a centralized, such as large-scale Northwest ground photovoltaic power generation system; a distributed (to >6MW for the demarcation), such as industrial and commercial enterprises plant roof photovoltaic power generation system, residential roof photovoltaic power generation system .
Photovoltaic is defined as the direct conversion of ray energy. In practice it usually refers to the conversion of solar energy to electrical energy, i.e. solar photovoltaic. It is realized mainly through the use of solar panels made of semiconductor materials such as silicon, using light to generate direct current electricity, such as solar cells that can be found everywhere in our daily lives.
Photovoltaic technology has many advantages: there are no mechanically operated parts; it does not require any "fuel" other than sunlight, and it can work under both direct and oblique sunlight; and it is very convenient and flexible in terms of site selection, as it can be applied to rooftops and open spaces in cities.
Module
Photovoltaic panel module is a power generation device that generates direct current (DC) electricity when exposed to sunlight, and consists of thin solid photovoltaic cells made almost entirely of semiconducting materials (e.g., silicon). Since there are no moving parts, they can be operated for long periods of time without causing any wear and tear. Simple photovoltaic cells can provide energy for watches and calculators, while more complex photovoltaic systems can illuminate houses and supply power to the grid. Photovoltaic panels can be made in different shapes and modules can be connected to generate more power. PV panel modules are used on rooftops and building surfaces, and are even used as part of windows, skylights, or shading devices in what are often called building-attached PV systems.
Solar energy
Advantages
①No danger of depletion;
②Safe and reliable, no noise, no pollution emissions outside, absolutely environmentally friendly (pollution-free);
③Not subject to the limitations of the distribution of resources in the geographical area, the installation of the building roof at the same time the advantages of aesthetics;
④Without the need to consume fuel and erect transmission lines can be generated locally
5 High energy quality (the highest conversion rate in the laboratory has reached more than 47%);
6 Easily accepted and loved by the users emotionally;
7 Short construction period and short time spent on energy acquisition.