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I am struggling finalizing the PV package for my off-grid cabin and could use some help. One package seems to be border line oversized risking high voltage on the MPPT and if I upgrade package sizing, adding two more panels and upsizing MPPT I then risk being too low on minimum required MPPT...

This is for an off-grid 15 KWh 48V battery bank (3x EG4s) connected to a Schneider 4048 Inverter in split-phase. The system has been running well for over a year. I would like to get feedback on how you'd deal with these warnings if you were running this system. I have a total of (3) alarm and...

My current off-grid setup has no grounding and I would like to address it but I am not sure what is the correct and/or best way for doing so. The setup is the following: - (1) 12kW Split Phase Generator located outside in a shed - (1) 8kW Growatt AOI Split Phase inverter coupled to (1) EG4...

I have a Kohler 14kW Generator currently tied to a 450 CCA 12V lead-acid battery and a small 15W solar PV to keep the battery charged. I need to replace the battery, it finally died today. Kohler does not specify ideal battery capacity for the generator, nothing on the owner's manual. I bought...

Here is my final design for my off-grid cabin PV installation. I would appreciate any last minute feedback or blessings from the group: I am comfortable with most of the design but a bit reluctant about the DC disconnect switch rated at 32A. I think I should've bought a higher current...

I am currently running my off-grid cabin with (1) EG4 48V battery. This year I need to add at least 1 or 2 battery racks to my system. The only issue I had last winter was the cold weather limitation in which I had to wait until mid-day to charge my EG4. I was recommended Trophy rack batteries...

I need to purchase a rack for my EG4 battery but I can't figure out server rack sizing. EG4 Spec Sheet says "3.5U Rack" but I don't know what that means. Could someone verify if a "9U Rack" would accommodate 1, 2 or 3 EG4 batteries? Thanks in advance!

This week I've received the solar panels & racking mounting rails + hardware. MPPT is also under way. I am shooting for installation the following weekend. I have some last minute questions that I could use some help with: 1. 3/4" Schedule 80 PVC Conduit to run a a pair of 8 AWG + ground...

My setup is the following: - (1) Growatt 8kW DVM-MPV, Split Phase - (1) 12kW Gas Generator, Split Phase - Grounding bonded to neutral at main cabin panel - Inverter, Battery + Generator installed on exterior shed Here is a photo of the equipment in the shed: The issue I currently have is...

This is my roof and the proposed layout for a total of (12) Panel to be wired in a 6S2P configuration for a total of 4,860W installed PV capacity. I tried to position the panels so that one could still safely move around the roof to clean up gutters and the chimney. I would like to get...

The setup is running with no issues, just can't determine the correct setpoints to program the Temperature Controller. Anyone with a similar chest-freezer-to-fridge setup could share their setpoints? Compressor ON / Compressor OFF / Compressor Time Delay? My current setup is: - Magic Chef...

I guess I don't exactly know what the "poles" are hence my confusion trying to select the correct DC switch for my setup. I have (1) set of 8 AWG wires going to the DC switch. The wires carry 2 x Isc: 13.85A = 27.7A so in my limited understanding of things I would expect that I need 2-Pole @...

I currently have a 1-1/2" electrical conduit running to the cabin from the shed, underground, with split-phase AC power and a generator signal (control) wire inside the conduit. I need to run 8 AWG wire from the roof to the shed. Can the new PV DC wiring run inside the same conduit with the AC...

I need a temporary solution for the rest of the year and early spring, until I can have the funds & technical confidence (and ability) for a permanent solution. I have (4) QCell Q.PEAK DUO L-G7.2 405 405W Solar Panel already delivered to the cabin. My understanding is that out of the Solar...

Everything I seem to learn on the forums from my research or from reading from other posts, when I share with a co-worker Electrical Engineer he turns into a "no-go no-can't" convoluted response, which makes me feel like I can't move forward or make any progress with my project. I can't tell...

We have the racking system installed mounted on the roof and electrical devices wired all the way to the battery: Roof junction Box > DC Disconnect > Combiner Box > Surge Protection > DC Breaker > MPPT > Battery We are ready to move the panels to the roof and start wiring them. I realized that...

My current setup is the following: - Conext SW4048 - Conext InsightHome - Conext AGS - EG4 48V 100AH - 14kW Kohler Generator, split phase, 70A breaker Installation has been completed and in operation BUT I can't figure out ideal Conext device settings. From the EG4 battery specs sheet I have...

I am trying to wrap my head around the dynamics between a lithium rack-type battery with internal BMS and a inverter charger which has NO communication with the battery BMS. Who dictates the charging current to feed the battery? The battery BMS or the inverter charger? I ask this because I...

I am trying to understand whether I can connect my newly installed EGC (solar racking ground, charger controller ground and inverter ground) to the existing AC grounding that currently serves the cabin OR if I need to install a new grounding rod system. This is for an off-grid installation...

I need to replace my generator battery - it has been abused and acting up, not holding charge. Could someone recommend a vendor (Lowes? Walmart? Electrical Supplier? Autozone?) and a battery brand for this application? I suspect this is a size 51 battery? Am I reading the labels correctly...

The 450CCA starter battery on my Kohler 14kW Generator died. The battery is directly connected to a Wel-Bilt 7-Watt solar charger #28650. I purchased the system as it is, so I do not know how old this battery lasted or whether this small solar charger is adequate. Perhaps this setup works fine...

I need a new 12V battery starter for my Genset, my old one died in the winter. I currently have a 50W Panel connected to a Renogy Wanderer 10 Amp solar charger. I was wondering if I could "upgrade" the Genset battery from Lead-Acid battery to AGM or Lithium and ALSO use it for USB lighting or...

I am trying to better understand what is going on here: a vendor sells (2) distinct battery banks, both banks comprised of the same 6V battery unit. (4) batteries total on each battery bank. Crown 430AH 24VDC 24V 430 AH 10,320 Wh FLA $ 1,475 Crown 860AH 12 VDC 12V 860 AH 10,320 Wh FLA $...

Hello @JacksonSolar & @SignatureSolarJames & @Markus_SignatureSolar I have a running setup with a Schneider SW Inverter + InsighHome + (1) EG4 Battery. Setup was properly connected to InsightHome and correctly showing EG4 BMS device: Yesterday we received (2) more EG4 batteries straight...

I purchased directly from EcoFlow last year a River Pro 720 Wh unit which I use to run my mini fridge in my cabin. Originally I was able to run the fridge for over 30 hours. After a few months I realized I was getting about half of the runtime. This prompted me to purchase a Wattmeter. Not to my...

I am looking for layout designs and construction information to build a 4 Ft x 6 Ft shed to install batteries + inverter+ charges + disconnects & appurtenances. Am I in the correct sub folder? If not, which sub would be more appropriate? TIA!

What is the importance of differentiating the wire with a MC4 connector on an end and calling it "PV" as opposed to THWN electrical wires without the MC4 connectors? I am in this rabbit hole trying to understand WHY this is important but no success. Could someone briefly clarify the terms and...

Doing research on the Outback FLEXmax 100 with Arc Fault protection but not sure about lithium/EG4 battery compatibilities. Anyone using the FLEXmax100 with EG4 batteries? Any issues with compatibility?

After reading the Schneider Conext SW 4048 manual I was not able to determine whether it would work with my EG-4 LifePower4 Lithium battery. It raised me concerns since the product literature does not mention lithium batteries at all. Could someone clarify why this inverter, as well as the...

I am trying to understand whether I could still use generator power if I remove the 48V batteries from the site and the inverter is off. The generator power is wired thru the Inverter. Would the inverter still "wake-up" and pass-thru the generator power, even if no batteries are connected to the...