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

Published: July 25, 2006

Pennington, New Jersey [RenewableEnergyAccess.com] Ocean Power Technologies (OPT), known for its PowerBuoy wave energy device, filed an application for construction permission to the U.S. Federal Energy Regulatory Commission (FERC) for a 50-megawatt (MW) wave power generation project in Oregon, the first request in the U.S. for such a power project on a utility-scale level.

"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
As part of the initial program for the OPT Wave Park to be located at Reedsport, OR, the company expects to install its ocean-tested PowerBuoys approximately 2.5 miles off the coast at a depth of 50 meters initially generating a total of 2 MW. Approval for the full-scale 50 MW wave power plant will follow completion of the initial 2 MW program.

"This application to FERC represents a major step in the development of OPT's wave power projects in the U.S. for large-scale electricity generation," said George Taylor, Chief Executive Officer of OPT. "When completed, this plant will provide renewable power into the grid supplying the West Coast of the U.S."

The company has already consulted key stakeholder groups about its plans and will continue to work closely with these groups over the initial stages of the project. According to the company, a key strength of the PowerBuoy system is its compact nature and low visual impact.

OPT's wave energy converter consists of a vertically oriented column or cylinder that absorbs the rising and falling motion of ocean waves to cause the buoy mechanics to move freely up and down. This movement in turn drives an electric generator that creates usable on-site power or power that can be cabled away to a nearby mainland location.

OPT's PowerBuoy technology was cited in recent U.S. Congressional hearings in support of increasing funding for ocean energy demonstration programs. U.S. Representative Inslee (D-Washington) proposed an amendment to the Deep Ocean Energy Resources (DOER) Act, which would increase the funding for ocean energy demonstration programs from $6 million to $20 million per year. The Congressman also specifically cited the technology being offered by OPT.
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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
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Comment
2 of 9
July 25, 2006
Does anyone know what the efficiency of the 2MW buoy would be? And the variances of output?
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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
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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.
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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.
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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."
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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.
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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!!!
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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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