部分http资源不能在https下加载，请将网址切回http.
观看小提示:[DVD标清版] [BD超清版] [HD高清版] [TS抢先版:不清晰]
类型：纪录片,短片 地区：葡萄牙 年份：2015
Manoel de Oliveira shows us what the evolution of energy represents, through a retrospective of the last century, exploring the three technics that EDP uses in order to produce electricity: hydric, wind, and solar.