If we were to convert our homes to solar power —— using solar panels to heat the house, and PV cells to convert the Sun's energy into electricity, we could not only store the excess for a rainy day but could sell it back to the National Grid.
If we were to convert our homes to solar power —— using solar panels to heat the house, and PV cells to convert the Sun's energy into electricity, we could not only store the excess for a rainy day but could sell it back to the National Grid.
如果我们的家庭中改换成使用太阳能——用太阳电池板取暖，并且用光生伏打电池把太阳能转变为电能，我们不仅可为雨天超量存储电能，还能把电出售给国家电网。