Solar The NEED Project（太阳能项目的需要）.pdfVIP

Solar What Is Solar Energy? An active solar home, on the other hand, uses special equipment to Fusion collect sunlight. An active solar house may use special collectors that Every day, the sun radiates (sends out) an enormous amount of The process of fusion most commonly involves hydrogen isotopes combining to look like boxes covered with glass. energy—called solar energy. It radiates more energy in one day form a helium atom with a transformation of matter. This matter is emitted as radiant energy. These collectors are mounted on the rooftop facing south to take than the world uses in one year. This energy comes from within the sun itself. advantage of the winter sun. Dark-colored metal plates inside the boxes absorb sunlight and change it into heat. (Black absorbs sunlight Like most stars, the sun is a big gas ball made up mostly of hydrogen better than any other color.) Air or water flows through the collectors and helium gas. The sun makes energy in its inner core in a process and is warmed by the heat. The warm air or water is distributed