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November 09, 2006

Comments

amazingdrx

1,500 mwh per year will power 150 to 300 homes. At 5000 to 10,000 kwh per year per home, depending on energy conservation in the homes.

This looks like a great design to power island and coastal communities.

For large cities and utility scale power production for the grid, combined wind and wave power floating platforms would be better.

But this proves the feasibility. A 1500 foot diameter wave power floating platform could produce 50 mw. And if the projected kwh production of this wave project holds up to real world tests, these large floating wave platforms could power 50,000 to 100,000 homes. Double that for platforms that also incorporate 1000 foot scale wind machines.

In which case, coastal urban areas like Seattle or NYC could power themselves with floating offshore wind/wave platforms cost effectively with out of sight, out of NIMBY-mind, clean electric power.

And deslinization pumps running on these platforms could provide fresh water that is in such short supply in many urban locales.

donb

You need to check out the web site at the top of the article. A large platform would not work, as it would smooth out the variations in wave heights over its area. The technology depends on the movement of a relatively small buoy floating on the surface against a disk in the nearly stationary water some distance below the surface.

To get large amounts of power, an array of these devices is used.

Tim

Did I read the white paper correctly?

https://aquaenergygroup.com/projects/articles/PDEA-061020_sm.pdf

The plant generates 1,500 mwh per year, which they value at $60,000. It costs $50,000/year to operate and costs $5,000,0000. (Page 132 in the PDF.) They are almost a factor of 10 from being feasible. Am I missing something?

Watthead

Nope, you're not missing anything, Tim. AquaEnergy must be planning on taking a large loss on this pilot project, but that is typical of many pilot energy generation projects. AquaEnergy probably plans on simply eating the loss on this project in the hopes that it will pave the way for more larger scale projects in the future. They have a long-term (20 year) power purchase agreement from Clallam County PUD to purchase the output of the pilot project for only 4 cents per kilowatt hour, or the same as power from coal or cheap hydro.

Wave energy pilot projects produce power in the range of 20-30 cents/kWh (levelized costs). Eventually, the industry hopes/expects that prices will drop along a similar price curve as experienced by the wind industry to roughly 5-6 cents/kWh, or competitive with onshore wind power (and natural gas).

shamil ayntrazi, PE

Greetings,
Follows a summary of enerating electric power from sea waves, as detailed at website www.renewableenergypumps.com
It is submitted for info and possible cooperation.

Best regards

Shamil
PROPOSAL
Two systems are herein proposed. They excel all others.
1. Wave Air Pump - WAP: Compresses air and feed it into the air inlet of a turbine, add fuel as needed to maintain turbine output irrespective of wave heights.
2. Wave Water Pump - WWP: Lifts a small quantity of water to a high head and feed it to a hydro-turbine to produce power, or compressed air to feed another turbine and act as a WAP.
A set of pumps up to ten may be installed in line with the incoming waves and a mile wide to extract most of its energy.
The proposed systems can generate electric power at a cost less than 2 Cents per kilowatt-hour.

jfinlayson

Wave power prototype sinks in the sea.

Oops.

الاندرويد

greeting this is the idea of the future and very exiting to do

r4

A 1500 foot diameter wave power floating platform could produce 50 mw. And if the projected kwh production of this wave project holds up to real world tests, these large floating wave platforms could power 50,000 to 100,000 homes.

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