If a 10 kW photovoltaic solar power plant is built in southern Fujian, how much electricity can it p

Introduction If a 10 kW photovoltaic solar power plant is built in southern Fujian, how much electricity can it produce in 11 hours of sunshine? It is rarely calculated in hours. We generally calculate it as the average number of degrees per day. In southern Fujian, Z

If a 10 kW photovoltaic solar power plant is built in southern Fujian, how much electricity can it p

It is rarely calculated in hours. We usually calculate it based on the average daily electricity production. In southern Fujian, taking Zhangzhou as a representative, the annual average sunshine hours in Zhangzhou is 2060, so the annual electricity generation of 1 kW is 2060 degrees, the average daily electricity generation is of 5.6 degrees. If we really need to count hours, 11 hours, 10 kW is 110 degrees.

The electricity production of 200 square meters of photovoltaic energy in one day

The electricity production mainly depends on the sunshine conditions and the local temperature . In good sunlight conditions, it can produce more than 20 kilowatt hours of electricity in winter (calculated over 4 hours) and more than 40 kilowatt hours of electricity in summer (calculated over 8 hours). However, taking into account weather factors such as rain, brume, etc., the average daily sunshine in a normal area is about 4 hours per year. In other words, regardless of wind or rain, a 5 kW photovoltaic plant can produce electricity. 5000*4*365=7300 degrees per year approximately. Some droughts and low latitude areas with good light conditions will produce more energy.

Detailed information:

< p>1. Advantages of photovoltaic power generation:

Whether from the world or China, conventional energy sources are very limited. China's primary energy reserves are well below the global average and represent only about 10% of the world's total reserves. Solar energy is an inexhaustible source of renewable energy for humanity. It is completely clean, absolutely safe, relatively widespread, truly durable and maintenance-free,well-resourced and potentially economical, and plays an important role in long-term energy. strategy.

Compared with commonly used thermal power generation systems, the advantages of photovoltaic power generation are mainly reflected in:

①No risk of depletion

②Safe and reliable, no noise, in addition to the absence of polluting emissions, it is absolutely clean (no pollution);

③It is not limited by the geographical distribution of resources and can take advantage of building roofs, for example, areas without; electricity and areas with complex terrain;

④Can generate electricity and provide electricity on site without consuming fuel or erecting transmission lines;

⑤High power quality;

⑥Easy to use users need to accept emotionally;

⑦The construction period is short and the time spent on obtainingenergy is short.

2. Disadvantages of photovoltaic power generation

Solar panel production has the characteristics of high pollution and high energy consumption. In current conditions, it is also said to be difficult. to produce panels for domestic use. In the past, large-scale exports amounted to pollution to China and benefited the entire world. According to statistics, more than 40 kilograms of coal must be burned to produce a 1 m by 1.5 m solar panel, but even the most inefficient thermal power plant in China can use this coal to produce 130 kilowatt hours of electricity ( typically a 1m x 1.6m solar panel generates over 250 kilowatt hours per year) - this is enough to produce 2.2 watts of light energy. The diode (LED) bulb shines 30 times per day based on a 12-hour workday.Yeare.

① The energy distribution density of irradiation is low, which means that it occupies a huge area

② The energy obtained is related to the four seasons, day and night, cloudy and; sunny conditions and other weather conditions.

③ At present, compared to thermal power generation, the cost of generators is high.

④The manufacturing process of photovoltaic panels is not environmentally friendly.

References:

Baidu Encyclopedia - Photovoltaic Power Generation

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200 square meters of photovoltaic energy production corresponds to 1.2 kWh per day. Based on 6 hours of sunshine per day, 200W times 6h = 1200Wh = 1.2KWh, or 1.2 kilowatt hours of electricity. Photovoltaic is the abbreviation for photovoltaic solar power generation system. This is a new type of energy production systemrgie which uses the photovoltaic effect of the semiconductor materials of solar cells to directly convert the energy of solar radiation into electrical energy. It has two independent and network operating modes. connected operation.

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