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頁面建立日期
2019.04.24

頁面更新日期
2019.05.09

https://doi.org/10.30942/2.20190424.001

太陽能 Solar Energy


簡介 Introduction

有些地區的日照時間長,陽光充沛,是發展太陽能的好地方。現時,太陽能主要用作加熱和發電。太陽能集熱器能直接利用太陽的熱能把水加熱,為建築物提供暖水。至於發電,目前最常用的是光伏發電,即利用太陽能電板收集陽光,把光能轉換成電能,為建築物提供電力。雖然太陽能用之不竭,但是只能在天晴時才能收集。要確保能源供應穩定,須安裝能量儲存設備,如蓄電池等,同時須裝設大量成本高昂的太陽能板。由此可見,發展太陽能不僅佔用大量土地,而且成本相當高。目前,使用太陽能供電最多的國家,包括中國、德國和美國等。

Places with long daylight duration and strong sunlight are suitable for solar energy development. At present, solar energy is mainly used for heating and power generation. Concentrated solar power systems can directly use the solar radiant to heat up the water and provide warm water to the building. As for power generation, the most common use is photovoltaic power generation, which uses solar panels to collect sunlight, convert light energy into electricity, and provide electricity to buildings. Although solar energy is inexhaustible, it can only be collected when the weather is fine. To ensure a stable energy supply, energy storage equipment, such as batteries, must be installed, and a large number of costly solar panels must be installed. Thus, the development of solar energy not only occupies a large area of land, but also expensive. Currently, countries that use the most solar power are China, Germany, and the United States.

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