Re: solar panel
Nick Fowle SM 404 Rascal <svrascal@...>
I have similar experience with my two LG360s on the arch. According to Victron I have benefited on a few days in excess of 900wts peaks , and regular days in excess of 800-840wts peaks. Ironically the 900 days are not highly correlated to the highest total power days, where I can get around 4kwh out of the panels. However with the weather changing down here the overall yield has declined significantly recently, but I do continue to get some days of peak output which is slightly higher than rated, but the total yield during the day rarely gets above 3KWh and is bound to decline further.toggle quoted messageShow quoted text
The Bimini ones (2*220) rarely exceed rated output, but when they do, they can exceed the combined theoretical total by around 10-15%. They are not as consistent given shading etc . As per the LG’s there appears (according to Victron) to be very little correlation between peak power days and highest overall yield during the day so now I largely ignore peak power.
Best days I’ve had around 5.8-6.2 KWh from the four panels, and these were sailing days back in early April, not on anchor. Now, on a good day here in Carriacou I get around 4-4.75kwh and last week , as low as 1.5kwh across the four. The weather was pretty special in Southern parts of Grenada last week.
Both sets are wired in parallel. I recently switched the Bimini ones from being in series (as per instructed ) to parallel but haven’t a really seen a material difference in performance. It’s hard to make any meaningful comparison/ analysis on the switch over mainly I think due to changes in the weather here in Grenada over the past few weeks. This week the weather in Carriacou has been pretty good but hazy (Sahara sand apparently) but the Bimini panels now in parallel have performed worse than when in series. Will continue to monitor, too many variables to make any meaningful conclusions right now.
I have to run the genset roughly once a week at anchor, mainly for the water maker. My 3KW Quattro overheats after about 30mins if I am running the water maker off the Quattro/ battery bank alone. As the season changes further, the genset hours will obviously increase, until I move on after AZ2 jab scheduled for mid June.
Bill , if you come up with a plan for the insulation please share. Like you the fridges and freezers are a significant portion of the overall daily consumption, even when taking into account that I cook / bake on electric.
Tyrell bay, Carriacou
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On Thu, May 20, 2021 at 9:29 PM, Bill Kinney <cruisingconsulting@...> wrote: