Introduction to solar energy, the English abbreviation of photovoltaics

Photovoltaic.

Photovoltaic industry.

Photovoltaic power station. photovoltaic power station。

Grid-Connected PV Power Station.

Multi-product poly crystalline.

mono crystalline.

Photovoltaic modules. pv module。

PV bracket PV support bracket.

Combiner box combining manifolds.

Reverse Changdan transformer.

grid-connected inverter。

Power transformers.

power transformer。

Oil-immersed type transformer.

Dry-type transformers.

dry-type transformer。

Neutral terminal.

Summary. The essential meaning of photovoltaics is to obtain electricity from the energy of sunlight. The word was first applied in 1890 and is divided into two parts:

photo", from the Greek word for light, "phos"; The "volt" is a unit of voltage measurement named after Alessandro Watt (1745-1827), a pioneer in the study of electricity.

Hello dear, the English of photovoltaic is photovoltaic, referred to as PVPV refers to the use of the sun to generate electricity, photovoltaic industry. Since this type of electricity does not produce nitrogen oxides, gases and radioactive waste that are harmful to the human body, it is called a clean power generation technology

The essential meaning of photovoltaics is to obtain electricity from the energy of sunlight. The word was first applied in 1890 and is divided into two parts: "photo", from the Greek word for light, "phos"; The "volt" is a unit of measurement of voltage named after Alessandro Watt (1745-1827), a pioneer in the study of electricity.

The English introduction of solar cells is as follows:

solar battery。

How solar cells work:

Under the action of the built-in electric field in the p-n junction, the photogenerated holes flow to the p-region, and the photogenerated electrons flow to the n-region, and the current is generated after the circuit is turned on. This is how photoelectric effect solar cells work.

There are two ways of solar power generation, one is the light-heat-electricity conversion mode, and the other is the light-electricity direct conversion mode.

Light-heat-electricity conversion:

The light-heat-electricity conversion method uses the heat energy generated by solar radiation to generate electricity, which is generally converted by a solar collector into the vapor of the working fluid, and then drives a steam turbine to generate electricity.

The former process is the light-heat conversion process; The latter process is a heat-to-electricity conversion process, as is the case with ordinary thermal power generation. The disadvantage of solar thermal power generation is that it is very inefficient and costly, and it is estimated that its investment is at least 5 10 times more expensive than that of ordinary thermal power plants.

A 1,000 MW solar thermal power plant requires an investment of US$ 2,02.5 billion, with an average investment of US$ 2,000 2,500 per kW. Therefore, it can only be applied on a small scale for special occasions, and large-scale utilization is not economically cost-effective and cannot compete with ordinary thermal power plants or nuclear power plants.