Originally Posted by CaptainRivet
The 360Wp lg neon are great, had them on my previous mono.
Got Longli bifacials because measurements fitted better and they were a steal, 600Euro for 4 and sold
one for 300 as only 3 fitting, work very well too….rated 365W and I regularly see 440W. 3 are enough that my 840AH house is mostly full before noon…
You have so much solar and will hardly ever need your alternators for charging. don‘t get why you switched to ridiculously expensive wakespeed regulators and huge alternators. Would try your lot solar with just standard alternator and make them safe with a dc-to-dc charger. Get experience and really check if you need them…it’s not only the cost, its also installation
and often belt wear issues…
And if you really need the big ones just get right away a alternator and regulator combo, the smaller balmar
with regulator is the price
of a ws 500 alone and more you definitely don‘t need. My solution for the really seldom days where a huge bank and lot solar is not enough at anchor, I have a little Honda
eu22i Gen with external range extender tank, connect it to shorepower inlet and charge via Multiplus 120A charger. Much quieter, cheaper, simpler and runs for hours with just 1,5l gas. Alternator charging mostly happen on long passage motor
sailing but only 1 engine and for hours so 35A is ok as the bank is full after 4-5h anyhow as solar always delivers a bit additional even on very cloudy days…
That’s reality if you are in the barefoot sailing regions. I run full electric galley, a 600W stereo almost permanent and several gadgets. Looking at the SOC but actually have approx 80% of time more solar power then I can consume…
Regarding SBP220 that’s what’s in your schematic. In the manual it’s written don‘t use it on big inverters as inrush current destroys it and I got that from others too not to use on windlass and big power winches from sailors they know Victron products well. Bp can only work in one direction and will be very easy killed if current runs the other direction.
…if you wanna try, go ahead and test it , happy to hear results…and we’ll if your anchor gets stuck, it’s easily ends up in battling 45-60min with heavy windlass use and not just minutes…Murphy is always there and hits you when you don‘t have time to check your SOC permanently, manual control is not enough
We just consume a lot of power and water
. Swapping to a Spectra CHE330 to help with the power consumption
on the water
making side. My wife likes to cook and we tend to use the electric parts
of our galley more than the propane
I was initially hesitant to do the alternator upgrade route
. Some things that changed my mind:
1. Our two new Yanmar
3YM30AE come with K6 pulleys (6 rib
serpentine). These are rated to over 300 amps from an alternator. I don't foresee any belt problems from pulling half that.
2. The Wakespeeds talk directly through CANbus with Victron Lynx BMS for charging but also to stop charging. They just are better than the current alternatives for alternator control. Yes, they cost more. This is an easy and clean solution to protecting the alternators during BMS shutdown.
3. We have a Honda 2.2k. I love these little Hondas. As quiet as they are they aren't silent. The wife dislikes it pretty much anytime. You can't run it while sailing. We will be keeping it to use when appropriate.
4. I'm going to be rewiring the engine room regardless of upgraded alternators or not, so I decided to just go all the way with the upgrade.
5. The price of this refit
in parts/shipping alone is already a lot of money
. I don't want to add it up but I'm sure $75K+. The $5k for alternators/controllers/wiring is tolerable.
The SBP can’t be used with anything with a capacitor. From the manual "4. The short circuit protection of the SBP will be activated if you try to
directly connect loads with capacitors on their input (eg inverters)." I'm just trying to wrap my head
around the reverse currents from a power winch (size 46) or windlass (1500w). The manual states: "E8: Reverse current
Reverse current protection is activated in the event that reverse current flow is detected
CAUTION: SBP is designed to allow or prevent current flow from IN to OUT terminals ONLY. Reverse current flow is strictly forbidden and may permanently damage the SBP.
💡💡 1- Check that the SBP installation orientation is correct - current flow must be from IN to OUT (refer to example wiring
2- Confirm that no charging sources are inadvertently connected to the SBP OUT terminal/circuit
3- If the SBP is used to disconnect a charge source, confirm that no loads are inadvertently connected to the SBP IN terminal/circuit has reverse current protection and that reverse currents can damage the device. "
I can't find anything about small amounts when a winch or windlass stops causing damage.
Long windlass usage would almost always be accompanied by engines/alternators running thus no worries about S.O.C.