He aha te kete whakawera wai wera solar?

He pehea te ahua o te punaha whakamahana wai wera wera?He aha te kete taputapu mo te punaha whakamahana wai wera ra?Ka tangohia e matou te punaha 1000 rita me te 1500 rita hei tauira.Tikiake koa te konae PDF.