Freshwater

NIOT floating desalination plant data

OTECAccording to a Xenesys press release the NIOT floating OTEC test plant is currently running on diesel power and generating 1000 ton of fresh water per day. They take up seawater from 500 meters depth through a pipe of 1 meter diameter and use the OTEC heatexchangers to produce the freshwater. In the future they hope to power the process using the OTEC generators.

Xenesys signs OTEC deal with Kuwait National Petroleum Company

OTECAccording to a Xenesys press release, they have signed a memorandum of understanding with Kuwait National Petroleum Company with regards to building an OTEC facility for power generation and fresh water production. The contract is expected to be worth about US$16 million (2 billion yen).

More about India OTEC

Headlines India has an article about the Sagar Shakti OTEC plant ship which we wrote about yesterday. According to the article they use a 600 meter long pipeline weighing 100 tons. An analysis by The Indic View blog says this pilot plant produces fresh water at twice the price of a reverse osmosis plant, but this should come down significantly in larger installations. According to The Hindu, NIOT is also proposing a waste heat OTEC… Continue reading

Indian OTEC plans

NIOT are looking for private sector partners to build desalination plants based on the Sagar Shakti design according to DailyIndia.com [cached]. It also looks like the Sagar Shakti vessel is actually operational as well, as it is listed as being off Ennore, with a task of desalination. Hopefully this means that they now have a fully operational deep-water piple as well. Furthermore they have put up a page describing the Kavaratti desalination… Continue reading

Reverse Osmosis versus OTEC

OTECDominic Michaelis the co-designer of the Energy Island OTEC platform concept, together with Jerome Tomasi have written a paper which compares the costs of using reverse osmosis to make fresh water from seawater with the cost of doing the same with an open cycle OTEC plant.

This comes as the Perth opens the reverse osmosis plant described in the paper. Perth is to “stop the total sprinkler bans in Perth and south… Continue reading

The Guardian writes about the Seawater Greenhouse

Seawater GreenhouseThe UK newspaper the Guardian has an article about Giant wind turbines based on a seed, and desalination plant that mimics a beetle which mentions both the Seawater Greenhouse and the Grimshaw/Paton theatre desalination plant.

300,000 bottles of deep seawater per day

Hawaii Business Magazine has an article about Koyo USA Corp. and their desalinated seawater bottling facility. The facility uses deep seawater from NELHA and in just three years, it has become Hawaii’s second-largest foreign export.

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