Price is a primary concern for 99% of users, as total system capacity is
limited by your funds, and not your work, ability, area etc.
Also, prices vary by a factor of over 400% -
Making a large -scale system cost total from 40.000$ to 160.000 $.
> Price is really going to be a secondary concern in that most major
> sites have similar prices. Your real concern is going to be the
> efficiency of the cells. The area needed for the cells below will be
> larger then just about any boat you are likely to find. The below
> cells are 62in x 38in you would need 25 feet by 22 feet of roof space.
> For the 5 by 7 strings listed bellow.
All modern competitive-priced PV arrays today have similar efficiencies,
18%-20% or so.
The bigger panels are usually better, ie a 225 or 250 or 200W panel is
usually 2-4% more efficient than a 165W panel.
Note that 2% more from 20% is a 10% difference in PV panel effiency.
In a nutchell (pun intended), at 20%, you get 200 W / square meter (or
need 32 sq.m for 6.4 kW for the Sunelecs).
You can very easily extend your panels area over the sides and behind
your boat, with no real detrimental effects.
For marina use, make them swing or slide.
Steel mounts are easy and cheap to fabricate, anywhere in the world.
The hull is, again, the least important part of the equation, imo.
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