1. Water usage and solutions WRSC bdrew

2. De-Sal Costs; Modern Design Newest plant in Saudi Arabia. The plant will use a new kind of concentrated solar photovoltaic (PV) technology and new water-filtration technology, which KACST developed with IBM. When completed at the end of 2012, the plant will produce 30,000 cubic meters of desalinated water per day to meet the needs of 100,000 people. KACST’s main goal is to reduce the cost of desalinating water. Half of the operating cost of a desalination plant currently comes from energy use, and most current plants run on fossil fuels. Depending on the price of fuel, producing a cubic meter now takes between 40 and 90 cents.

3. Santa Barbara Plant The City of Santa Barbara built a plant in the 1990s but never operated it. The Yuma Desalting Plant may be the biggest white elephant in the world. At the time it was built in the late 1980’s, it was the world’s largest reverse osmosis plant capable of desalting 72 million gallons per day. The $245 million project was constructed to comply with the 1944 treaty with Mexico to reduce salinity of Colorado River water from 2900 ppm to 115 ppm. The estimated cost of operations and management was $24 – $29 million per year. I’m told it has never operated except for tests.

4. Metric Conversions 0.0002432AF per person usage 0.0005269$ per AF costs For a 2010 technology Desalinization Plant

5. Abnormal River Flow Increasing Desalinization reduces variances