他继续说：“热电装置将热量转化成电能，这些热量可以来自太阳或者温差，比如白天到夜晚的温差。”
He continued: 'Thermoelectric devices convert heat to electrical energy and this can be from the sun or a drop in temperature such as day temperatures to night.
但她也表示，这种可再生燃料的另一个同样重要的用途是存储太阳能，以便满足能源使用高峰期和夜晚的需要。
But she said an equally important use for the renewable fuels would be to store solar energy so it is available at times of peak demand, and overnight.
白天，50千米以上的大气层中原子和分子吸收太阳光的能量，夜晚又将这些能量释放出来，主要产生出我们从轨道上看到的绿色光。
Atoms and molecules above 50 kilometers in the atmosphere are excited by sunlight during the day, and then release this energy at night, producing primarily green light that is observable from orbit.
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