Problemmatic.

1.  You are seeking to compare first generation, first deployment of a technology with basically mature technology as you compare Pelamis with (onshore) wind.  Of course that first generation would be more expensive, even 10 times.

2.  Feed-In-Tariffs are a path for fostering the space between RDT&E and actual deployment, by providing financial incentives into the market space for deploying earlier and at larger scale, to boost the market to enable

3.  Not expert on Pelamis, but what is your basis for a 30% figure in terms of power production. This is lower than what I see for other ocean power system modeling (and, in some cases, actual data).  

4.  Just wondering, where is the .3 Euros for installed wind turbines coming from. This is certainly lower than the data that I see for the overall industry and perhaps 10 percent of the price for offshore wind from what I see.

5.  Looking at 'wave' (and most ocean) power, your line about 'niche' is where I stand. There is a role for wave power, but it is dependent on many factors -- ocean conditions (clearly), other energy options, etc.