with our retractable system it standard comes wihtout a generator
, we depend on regeneration from the Motogen's Solar panels
and the wind generator
on top of the mast
, only if you go thru areas like the Doldrums you would really need a back up generator
unless you are not in a hurry, with our Lithium Ion battery
,s on board we can motor
the boat for 3 hours @ 6 knots or 2 hours 7.5 knots or if you are really in a hurry 1 hour @ 8.8 knots. we put 20 Kw of batteries in the boat for the propulsion
side and 6,6 Kw for the service
side, we have 4 solar panels
on the boat 3 of these feed into the propulsion
side and the 4th one together with the wind generator
into the service
If mounting solar panels
close to the mast or boom and other partially shaed area's keep in mind that only 10 % shade reduces the output with more than 50 % so that is not very usefull.
The best solar panels
on the market today are manufactured by Sunpower corp from California
and they have an efficiency of 19.3 % or 193 watt per squire meter in optimal conditions ( the conditions are hardly ever optimal) so if you want 5 Kw of net solar power you would have to cover 35 to 40 squire meters !!!
the cost for good quality solar panels is around € 5.50 per watt peak or for your area to be covered would cost you € 38.500,00 ex installation
if you can by from the factory .
warm greetings and good luck with the project