Stories tagged with "wave energy"

The water snakes are back onshore

Posted by Luis de Sousa on March 23, 2009 - 9:17am in The Oil Drum: Europe
Topic: Alternative energy
Tags: original, pelamis, portugal, wave energy [list all tags]

Local newspapers today are making major headlines again with “the first commercial wave farm of the world". But for the wrong reasons, the state TV website published an article yesterday with the following opener:

The three Pelamis machines of the wave farm in Aguçadoura, that was considered by the Portuguese Government as a “flagship" of the country's leadership in renewable energy, where taken out of the sea and have been onshore, at the Leixões shipyard, for 4 months.

The two Pelamis units deployed in September were at sea for only 2 months and there's no date set for a return to operation.

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The First Wave Energy Farm of the World...It's About Time...

Posted by Luis de Sousa on October 2, 2008 - 9:15am in The Oil Drum: Europe
Topic: Alternative energy
Tags: pelamis, portugal, wave energy [list all tags]

On Tuesday the 23th of September, the deployment of the first commercial wave energy farm in the world started. A Pelamis unit was towed into the sea, connected to an underwater cable and moored to the sea floor, at a site were it will stay for the next 15 years. The Industry was present at the highest level, as so a Minister and even the Navy showed up with a frigate to join the celebration.

But is it all roses? Below the fold are a few thoughts and calculations that show how this is truly a green energy source. Green as in immature, that is.

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Wave/Geothermal - Energy Return on Investment (EROI) (Part 6 of 6)

Posted by Nate Hagens on May 14, 2008 - 10:00am in The Oil Drum: Net Energy
Topic: Alternative energy
Tags: charles hall, eroei, eroi, geothermal, geothermal energy, net energy, wave, wave energy [list all tags]

This is the final piece of a series on Energy Return on Investment from Professor Charles Hall's EROI Workshop at SUNY. Today's papers outline the energy technologies of wave and geothermal power, concluding a 5 part series that has looked at Why EROI Matters, Natural Gas and Imported Oil, Tar Sands and Shale Oil, Nuclear Power, and Passive Solar, Photovoltaic, Wind, and Hydro-electric. Previously, Professor Hall also wrote the thought provoking, At $100 Oil, What Can the Scientist Say to the Investor. Forget not about the simple 'balloon graph' below of EROI x Scale for fossil and renewable energy sources that this project is attempting to update with the help of theoildrum.com readership.



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Pelamis: A Shot in the Dark?

Posted by Prof. Goose on June 1, 2006 - 9:32pm
Topic: Alternative energy
Tags: eu, kyoto, pelamis, wave energy [list all tags]

[editor's note, by Prof. Goose] This is a guest post by lads.

Pelamis is a greek word that means sea serpent. I guess it is the best definition for what I was shown today, a metal serpent riding the waves, harvesting its energy.

A presentation of the pilot project was held here at school, directed to the Hydraulic Engineering students, but open to the general public. The speakers were from Enersis, the company promoting this first full materialization of such technology. I couldn't miss it.

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