Solar water heaters are devices that use energy from the sun to heat water.

VOA: special.2009.04.20

and use things such renewable energy, putting up wind and solar and biomasses, et cetera,

推广可再生能源的使用，推广风能，太阳能，还有生物质能等等新能源的使用，

全球变暖与国力 - SpeakingMax英语口语达人