Component inclination and array spacing design – knowledge points you must learn

The multi factor comprehensive calculation technology of component inclination and array spacing alternating feedback has been applied in a 10MW photovoltaic power station in Golmud, Qinghai Province. The component inclination and array spacing designed by this method can effectively improve the power generation efficiency and increase the income of the power station. The component inclination […]

Improve the design technology of photovoltaic power stations

The influence of design on power generation is very important, and an excellent system integration scheme plays an important role in improving the efficiency of photovoltaic power plants. Mainly explain the core technology of high-efficiency photovoltaic power generation engineering design from the aspects of photovoltaic modules, inverter selection, photovoltaic array operation mode, module inclination and […]

Innovative application form of photovoltaic power generation system

Photovoltaic power generation systems can be divided into grid-connected photovoltaic power generation systems and independent photovoltaic power generation systems according to whether they are connected to the public grid, and the following are all grid-connected photovoltaic power generation systems. In terms of application form, photovoltaic power generation projects can be divided into two categories. The […]

What are the specific ways to improve the efficiency of photovoltaic modules?

(1) Improve the original preparation process and develop new processes to increase the output of silicon raw materialsAt present, there are reports on some new process methods: vapor to liquid deposition (VLD) and molten silicon refinement. In the VLD method, trichlorosilane (SiHC3) and hydrogen (H2) are injected together into a graphite tube at 1500°C to […]

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 […]