Reasons for the loss of solar battery conversion efficiency

The main reasons for the loss of solar cell conversion efficiency include electrical loss and optical loss.Ⅰ. Electrical lossThe main causes of electrical loss are: carrier loss and ohmic loss. (1) Carrier lossDue to the defects of battery materials and other reasons, the generated electrons and holes and other carriers recombine, causing some of the […]

The principle of improving the efficiency of photovoltaic modules

A solar cell with a PN junction is equivalent to a diode when it is not exposed to light. In the absence of light, the current formed when a reverse bias voltage is applied to both ends of the PN junction is called dark current. The photo-generated current is the current formed by the PN […]

Development history of photovoltaic power generation technology

Photovoltaic power generation refers to a form of power generation that uses the photovoltaic effect of semiconductor materials to directly convert solar radiation energy into electrical energy. Photovoltaic effect refers to the change in the distribution and concentration of carriers that can conduct current inside an object after absorbing light energy, resulting in the effects […]

Photovoltaic development policies in the U.S. and U.K.

①United StatesThe federal government’s package of policies to support the development of renewable energy mainly includes two types of management policies such as the federal fiscal incentive plan and laws and regulations, standards, and binding indicators. The federal fiscal incentive plan mainly includes tax incentives and reductions, loan guarantees and other measures. Among them, tax […]

PV development policies in Germany, Switzerland, and Japan

As the concept of sustainable development continues to gain popularity in countries around the world, the global solar energy development and utilization scale is rapidly expanding, and technology continues to advance. Many countries regard solar energy as an important emerging energy source. Most countries have successively opened up photovoltaic development policies ①GermanyGermany’s grid-connected subsidies have […]

The development prospects of solar photovoltaic power

As the concept of sustainable development continues to gain popularity in countries around the world, the global solar energy development and utilization scale is rapidly expanding, technology continues to advance, and the cost is significantly reduced, showing good development prospects. Many countries regard solar energy as an important emerging energy source.① Solar energy is more […]

The development history of photovoltaic power generation

In 1839, the French scientist Becquerel discovered the photovoltaic effect for the first time. In 1954, Bell Labs scientists Pearson and Chapin successfully developed a monocrystalline silicon solar cell with a conversion efficiency of 6%. This was the first Solar cells with practical value. This achievement marked the beginning of the era of photovoltaic power […]

Composition and type of solar photovoltaic power generation system

⑴Composition of photovoltaic power generation systemThe photovoltaic power generation system is mainly composed of photovoltaic modules, inverters, combiner boxes, combiner cables, box transformers and supporting equipment. Other equipment includes lightning protection systems, power distribution cabinets, energy storage equipment, energy storage converters, environmental monitoring systems, Monitoring system and solar tracking system, etc. ①Photovoltaic modules: In the […]

Principles of Solar Photovoltaic Power Generation

Photovoltaic power generation refers to a form of power generation that uses the photovoltaic effect of semiconductor materials to directly convert solar radiation energy into electrical energy. Photovoltaic effect refers to the change in the distribution and concentration of carriers that can conduct current inside an object after absorbing light energy, resulting in the effects […]