The Wave Dragon wave energy converter

Why not simply just place the turbines horizontally to face the waves directly?

You could, but the turbine would not turn. You need the pressure over the propeller. Mind that wave are not water moving forward. Water in waves move in a slow circular movement. However, near the coast, where waves have lost most of their energy, waves move fort and back. There are some wave technologies with moving "flaps" developed to utilise this.

If the device could be built into existing breakwaters then the construction cost would be divided into two functions as well as not needing underwater cables. Even if the efficiency was not quite as good as an offshore unit the combined functions as well as the ease of maintenance might make it worthwhile.

How does this system reacts when there is a storm???

these idea's will help world to have clean and green energy. i vote for this energy.

I love you :-)

(continued ...) I doubt not that these technologies will work but I think that O&M cost will be prohibitive. And capital cost, too, with the limited device size profit will be eaten up by investment in subsea cabling and mooring systems.

I my view wave energy converters that works by the waves moving floaters etc have a number of disadvantages: first they extract energy from extremely power movements and about 5 million times per year. Second they need to be in resonance with waves to work and thus have a relatively narrow bandwidth were it works efficiently. And last but probably most important: when it has to be in resonance to work efficiently it is limited in physical size and thus power output per device.

You are of course right and we have these figures in our business plan. With the support schemes (there you have the government again...) for wave energy in UK and Portugal we can give our costumers (wave energy farm operators) an competitive ROI (in European terms; generally lower than in the US, in my experience at least). But they'll also have to take a significant risk with a completely new technology.

I disagree. This technology will be located far from your coast line (minimum of 3-5 miles but probably 10 - 15 miles) and with a freeboard of max 7 meter you'll not be able to see it from the coast. So; we have been thinking of nothing but the environment since the very start our project. I agree that an untouched and unbroken coast line shall be preserved.