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Application Filed for First U.S. Commercial Wave Energy Project

July 25, 2006   |   9 Comments

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"When completed, this plant will provide renewable power into the grid supplying the West Coast of the U.S."

-- George Taylor, Ocean Power Technologies, CEO
9 Reader Comments
Comment
1 of 9
July 25, 2006
I think the power will be more continuous as compared to wind but overall output will vary as to seasons and weather conditions. I think it is a very promising technology.

adrianakau@aol.com
Comment
2 of 9
July 25, 2006
Does anyone know what the efficiency of the 2MW buoy would be? And the variances of output?
Comment
3 of 9
July 26, 2006
If by "efficiency" you mean "capacity factor," wave energy projects usually operate around 40%. EPRI did a feasible study examining the Reedsport site, along with other sites in Oregon.
http://www.epri.com/oceanenergy/attachments/wave/reports/003_Oregon_Site_Report.pdf
Comment
4 of 9
July 26, 2006
I'd feel more optimistic about this proposed project if the OPT demonstration in Hawaii had generated even 1 kW to the grid, but to date it has not.
Comment
5 of 9
July 26, 2006
Kerry --

The question of "efficiency" is irrelevant in a project like this. The "fuel" is free, and we will never use anywhere near all of the energy in the waves. The question is whether this is cost-effective or not; i.e., how much does it cost per kWh. I don't know the answer for this project. Probably high -- it's a prototype.
Comment
6 of 9
July 26, 2006
The chief engineer claims that a 10 mile square area off shore would provide all of California's electrical needs. This energy source is therefore
characterized as very "dense."
Comment
7 of 9
July 26, 2006
After further research, it looks as though output variability will be no beter than wind, perhaps worse, although more predictable days in advance.
Comment
8 of 9
July 28, 2006
other questions to add to the $/kwh?

what is the expeced lifetime of an installed unit?

what is the cost per installed MW?

what is the predicted maintenance over the lifetime?


Then you can estimate what the $/kwh is over say 20 years.

Hopefully this exciting project will help answer these quesitons, I cannot wait to see the data!!!
Comment
9 of 9
August 2, 2006
My questions are:
What is the expected lifetime of the buoys, and
What is the expected energy payback time, energy cost of manufacture, installation, maintenance etc. vs. energy output?

If we had a rational money system, dollar values would be similar.
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