No YouTube... I don't think. The 2 controllers just allow for more reliability. In order to handle 200w I would need a larger single controller but a single failure would cause a complete loss of my solar charging system. 2 smaller controllers allow me to us high quality Genesun boost controllers instead of a larger less efficient one. Think of my system as 2 completely independent 6 amp solar charging systems attached in parallel to the same battery which results in a total of 12 amps.
Josh On Wed, Sep 9, 2020, 17:05 John Conklin via CnC-List <cnc-list@cnc-list.com> wrote: > Josh, > Like you my cruising is in and out of the channel, however with a bit more > time to go, and some amazing full days soloing Halcyon I am considering > few week long trips to and fro! And ... adding a few 100 watt flexible > panels > Did you do by chance do a youtube vid on that install process? Little > confused by the 2 controllers? Well always confused By the boat bits but > willing to try :) I have come a long way in 2 years. > Thanks !! > > John Conklin > S/V Halcyon > S/V Heartbeat > www.flirtingwithfire.com > > > On Sep 9, 2020, at 2:32 PM, Josh Muckley via CnC-List < > cnc-list@cnc-list.com> wrote: > > > I have experience but my panels are flexible and total 200w. I am also > considerably further south in the middle of the Chesapeake Bay. > > I have an Gensun MPPT-boost charge controller for each of the 2 panels. > They are rated for a 105w panel but I think based on the angle of the solar > impact and inefficiency of flexible panels I could have gotten away with > 120w panels. Experience has shown that I can plan on about 50 Amp-hrs per > circuit per day. 100 AHr per day into my 450 AHr flooded lead acid battery > bank. The system has worked perfectly fine over this summer when I have > had to abandon the boat away from shore power for more than 3 months. It > really is not handling a big load. Nothing but the bilge pump. Every time > I get on board I do check the battery voltage and it is always fully > charged. > > I'm not sure that the solar is sufficient for running comms, navigation > systems, lights, and fridge... Let alone just a fridge on a long > term basis. My cruising habits include motoring into and out of port so > the 100 amp alternator makes short work of topping up the batteries morning > and night. > > Happy to answer any other questions you may have. > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > > > > On Wed, Sep 9, 2020, 13:28 Dave S via CnC-List <cnc-list@cnc-list.com> > wrote: > >> Hello all, >> >> Need to replace my batteries and am contemplating an upgrade to >> Windstar's off-the-dock power system. Specifically evauating a battery >> upgrade and potential top-up-charging. >> >> Based on what I've read, a 100w panel would conservatively >> contribute 400-500w daily (average) in summer and be enough to help extend >> my "off the grid" time. I am on the North shore of Lake Ontario, Toronto >> area. >> >> Does anyone have any real-world data or experience with the actual >> charging capacity of a sailboat mounted solar panel? Would like to >> factor this into my decisions. >> >> Many thanks! >> >> Dave >> Windstar 33-2 >> >> https://cncwindstar.blogspot.com/2019/09/going-off-grid-charging-and-battery.html >> >> >> >> >> > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
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