Advantages of solar power generation:
1: Solar energy is inexhaustible and inexhaustible. The energy from solar radiation received by the Earth's surface is sufficient to meet 10,000 times the current global energy demand. 4 in the world Installing solar energy in % of deserts can meet global needs
2. It is safe and reliable and will not be affected by the energy crisis and fuel market instability
. 3: Solar energy is available everywhere, you don't need to go far. Long distance transportation avoids the loss of long distance transmission lines
4: No fuel is required and operating costs are very low< /p>
5: The production of solar energy has no moving parts and is not easily damaged, which makes maintenance simple
< p>6: It is not easy to produce polluting waste during the production process of energysolar energy and is an ideal clean energy.7: The construction period of the solar power generation system is short, convenient and flexible, and solar energy can be added or reduced at will depending on of the increase or decrease in the square load. to avoid waste
Disadvantages:
1: Ground application is intermittent and cannot or rarely generate electricity at night or on rainy days
2: Low Density Energy. Generally speaking, per square meter, the solar intensity is 1000W/m2
3: The current cost is relatively high
Advantages
That whether from the world or From China's point of view, 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 humans.nity. It is completely clean, absolutely safe, relatively widespread, truly durable and maintenance-free, sufficiently 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 doi userswind accept emotionally;
⑦ The construction period is short, and the time spent on obtaining energy is short.
Disadvantages
However, the production of solar panels is characterized by high pollution and high energy consumption. In current conditions, it is still possible to produce panels for domestic use, but. large-scale exports would amount to polluting China and benefit the whole world. According to statistics, more than 40 kilograms of coal need to be burned to produce a 1m x 1.5m solar panel, but even China's most inefficient thermal power plant can use them. coals 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 shine a 2.2 watt light-emitting diode (LED) bulb for 30 years. working 12 hours a day.
①The energy distribution density of irradiation is small, that is, it occupies a huge area
② The energy obtained is related to the four seasons, day and night, cloudy ; and sunny 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.