根據這裡的資料 http://www.eenews.net/stories/1059994202 Energy is the No. 1 driver of cost in desalination. Due in part to Israel's own resource constraints, Israeli companies have come to offer some of the cheapest desalinated water in the world -- about 60 cents per cubic meter. 最便宜的海水淡化水 1度 0.60美金 ~ 19台幣
IDE has built three of Israel's five largest desalination plants, including the Sorek project that meets 20 percent of Israel's municipal water needs. IDE has also built China's largest desalination plant and is building the largest desalination plant in the United States: a $1 billion facility in Carlsbad, Calif. 美國最大的海水淡化廠 造價10億美元 ~ 320億台幣
Today, Israel also treats and recycles more than 80 percent of household wastewater. 以色列處理與回收超過80%家庭廢水。