Its highly likely that within 3-5 years, PV panels will go to 40% or so
efficiency.
At approx 0.30$ / w cost, from current 0.38 (manufactured) 0.50$ retail
pricing.
One approach is refletive panels, using the undersneath ide as well.
Thus, in 5 years, the same sized panels will give approx 2.3 times more
energy, at 30% less cost.
The controller prices will also drop imho == 80%, from 20-50% system
price to less than 10%.
This is because volumes go up, and manufacturing controllers has very
low incremental cost/w.
A 1000 W controller costs approx 20$ in parts to manufacture - just like
a servo drive.
Large boats can be self-sufficient for 2-4 days, fairly easily.
This gives instruments, comfort, (and maybe) some ac.
See windhorse from dashews for example. 2 kW panels.
2 kW is only 1500$ these days.
On 13/02/2016 03:22, moriartybob@yahoo.com [electricboats] wrote:
> Nothing revolutionary, but maybe encouraging to others considering
> going solar.
>
> My very nice Electroprop All-Energy Racer system is connected to a 580
> watt (peak) solar bimini. After the most recent sea trial I decided,
> as an experiment, to sever shore power and see if the solar array
> would completely recharge the 210 Ah @ 48V battery bank.
--
-hanermo (cnc designs)
Posted by: Hannu Venermo <gcode.fi@gmail.com>
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