Usually when it comes to solar energy, most people think that the performance of this technology is only suitable for development in sunny and hot places, but this perception may not be accurate. Although the sunshine hours are important, the temperature will also greatly affect the efficiency of solar power generation, and the low temperature environment is better. This is one of the reasons why floating solar energy has been favored in recent years. Water can reduce the temperature of the panel, thereby increasing the efficiency. .
Therefore, in addition to sunshine hours, the average temperature is also a key point in the development of solar energy. In Germany, although the country’s latitude is higher than Massachusetts, and the weather is colder, its solar energy development is far better than Massachusetts. According to the US Solar Energy Industry Association (SEIA) statistics, Massachusetts’ solar energy production Ranked sixth in the United States, it can provide electricity to 244,000 households, while Germany has reached the new green energy mileage in 2017. The peak solar energy production capacity can reach 55.2GW and the lowest is 16GW, even with a few hours of negative electricity prices.
The development of solar energy will not be affected by the cold weather. In recent years, high-latitude regions have gradually begun to develop solar energy, such as the northwestern Yukon, Canada in the sub-arctic climate, including the 11.8KW array of the Old Crowe Arctic Research Center (ArcticResearchCentre). 330KW solar energy is also being planned. According to the 2016 feasibility study, the equipment array can reduce the total diesel consumption by 17%, which means that it can reduce the consumption of 98,000 liters of fuel every year.
After installing a solar system, the impact of fuel import fluctuations can also be reduced. Villages can use off-grid solar systems to achieve power self-sufficiency in the summer, and concentrate fuel-fired power generation during the night and winter.
According to a 2016 survey by the U.S. Department of Energy, Alaska, the United States, also has the potential for solar energy development. In 11 towns and villages in the state, solar energy can already compete with oil-fired power generation, but now the cost of solar energy is cheaper and competitiveness is expected to rise further. In addition, the potential of solar power generation in certain areas of Alaska is comparable to that of Germany, such as the southern city of Silicon Card that will not be affected by eternal night.
Compared with the cold Alaska, some people may think that the "Sunshine State" Florida is a good place for solar development, but the state is hot and humid in summer, and the conversion efficiency of solar cells is not high. Solar energy expert Soren Lange said that solar panels convert light into electricity, not heat into electricity. Hot weather will reduce the conversion efficiency. Solar energy may be more suitable for development in sunny and cold areas.
The same concept applies to Europe. The solar power generation potential of Oslo, Norway is similar to that of Germany, reaching 1,000kwh per square meter, while the sun-drenched Spain is only slightly better, with a power generation potential of 1,900kwh. Studies from various parties have shown that solar energy has the potential to generate electricity in places with cold weather and high latitudes. Although some places will experience the effects of permanent night and long-term rain, strategic equipment and use of solar energy are of great benefit to off-grid areas.