Photovoltaic ball

Photovoltaic power generation is a technology that utilizes the photoelectric effect of semiconductor materials to directly convert solar energy into electrical energy. When sunlight shines on a photovoltaic cell, photons interact with semiconductor materials to produce electron hole pairs. These carriers separate under the action of an electric field and form an electric current, thereby driving the external circuit to operate. Photovoltaic power generation is widely used in residential buildings, commercial buildings, and industrial facilities to provide clean and renewable electricity supply for these areas.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

Photovoltaic power generation system refers to a power generation system that directly converts light energy into electrical energy without the need for thermal processes. Its main components are solar cells, batteries, controllers, and inverters. Its characteristics are high reliability, long service life, no environmental pollution, independent power generation and grid connected operation. After being connected in series and encapsulated for protection, solar cells can form large-area solar cell modules, which, when combined with power controllers and other components, form photovoltaic power generation devices. The main principle of photovoltaic power generation is the photoelectric effect of semiconductors. When a photon shines on a metal, its energy can be fully absorbed by an electron in the metal. The energy absorbed by the electron is large enough to overcome the internal gravity of the metal and do work, escaping from the metal surface and becoming a photoelectron. Silicon atoms have four outer electrons. If an atom with five outer electrons, such as a phosphorus atom, is doped into pure silicon, it becomes an N-type semiconductor; If atoms with three outer electrons, such as boron atoms, are doped into pure silicon to form P-type.