太阳能是一种取之不尽用之不竭的再生性自然能源。应用太阳能既不会污染大气,也不会破坏生态平衡,而且凡是阳光能够照射到的地方,都可以利用太阳能。 太阳能热水器是太阳能利用技术中最简单、实际、应用最多并在经济上能与常规能源相竞争的一种装置。早在20世纪初期,美国最先开始使用太阳能热水器来获取生活用水。第二次世界大战之后,以色 Solar energy is an inexhaustible renewable natural energy source. The application of solar energy will neither pollute the atmosphere nor destroy the ecological balance, and solar energy can be used anywhere sunlight can reach. Solar water heaters are the simplest, most practical and most widely used solar energy technology and are economically competitive with conventional energy sources. As early as the beginning of the 20th century, the United States first began to use solar water heaters to obtain domestic water. After the Second World War, Israel