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Desalination by the Numbers
17,000+ The total number of desalination plants worldwide (as of 2013)
More than 80 million cubic meters per day - The global capacity of commissioned desalination plants (as of 2013)
21.1 billion US gallons - The equivalent of 66.5 million cubic meters per day
150 - The number of countries where desalination is practiced
More than 300 million - The number of people around the world who rely on desalinated water for some or all their daily needs
The crews are building what boosters say represents California's best hope for a drought-proof water supply: the largest ocean desalination plant in the Western Hemisphere. The $1 billion project will provide 50 million gallons of drinking water a day for San Diego County when it opens in 2016.
Desalinated water typically costs about $2,000 an acre foot -- roughly the amount of water a family of five uses in a year. The cost is about double that of water obtained from building a new reservoir or recycling wastewater, according to a 2013 study from the state Department of Water Resources.
The company will be guaranteed a rate of return between 9 and 13 percent, depending on operating costs.
Nobody disputes that the cost of water will go up. According to Yamada, the average customer's bill, now $71 a month, will rise $5 to $7 to pay for desalination.
And to remove the salt, the plant will use an enormous amount of energy about 38 megawatts, enough to power 28,500 homes -- to force 100 million gallons of seawater a day through a series of filters.
The two concerns are environmental and electricity.
originally posted by: Metallicus
If people want to live in the desert they are going to have to pay more for water. That sounds about right to me.
That way you get table top sea salt to sprinkle on your food, and used in other places, and purposes.
originally posted by: markosity1973
What the world needs is less people. Drought is a natural cycle and without us, nature would take care if itself.
originally posted by: Metallicus
a reply to: Isurrender73
The funny thing is that we have enough room in this country that no one HAS to live in a drought area. People make their choices then whine when they get what they chose.
Actual birds would be killed too occasionally when they fly through the solar flux......but ya know....small price to pay.
290 bird deaths per year is not too bad. I'm sure Californians run-over more than that in a month with their cars.
During the trial of the plant in September 2013, 34 dead birds were found at the plant, 15 of which had heavily burned feathers, which staff at the plant referred to as "streamers" because they were burned in flight by the intense radiation from the heliostat mirrors. From February through June 2014, a team of biologists monitoring the number of bird deaths reported a total of 290.
Yep. I like your idea. But, I'm sure it makes too much sense. I don't know how things are down under, but special interests lobbyist in the US would never go for an idea like this that didn't make them a bunch of money.
it seems a solar thermal plant using salt water would kill, at least, 3 birds with 1 stone. Desalination, Power generation and Carbon emission reduction.