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So in theory, the 120 is split among the 3 batteries? 40a each? Why do you say 60A recommended?

Can you use PV wire for grounding your array? I have a lot of extra.

Thanks. So we have: 10,000w inverter / 41V battery cut off / 97% Efficiency * 1.25 = 314 ~ 320 amps Should any of the cabling be upsized? The combiner jumpers? Combiner to inverter?

Noted. We request cut sheets and manuals very early on in the conversation. We are also looking for UL listed components.

Im looking to build a roof mounted breaker box for my 2 solar arrays. It will also house my 2 Midnight solar SPD's. I was planning on using the below Phoenix distribution blocks to properly tie in the SPD's before the breakers...

Are there any type of studded copper adapters that can convert a screw down terminal such as a breaker to accept a ring terminal? Any suggestions for terminating larger gauge 2awg (35mm2) stranded cable in screw terminals? Ive been searching for larger ferrules, but have found crimpers

Does the kWh math seem correct for the Rolls batteries? Do the 24 batteries equate to 28 usable kWhs?

Hi, did you ever get your batteries over to PR? Caribtrans ships from Florida. I’m looking to do the same from China, but trying to avoid the taxes. The sale of solar equipment is exempt from taxes in PR, but I want to ensure I won’t be hit with anything at the port.

How did it work with customs? I am exploring options to ship from China, but want to avoid getting hit up for additional fees. Solar sales are exempt from sales tax in PR, but not sure if the port will hit me with a import tax or other.

I'm looking to have the grid as a backup to charge my batteries. I have my main sub panel connected to load 1. If the grid goes down, I would not loose power to load 1 (critical load). The grid will go into the "grid" ports. What settings do I need to enable to only allow power in from the...

To tie into the house ground or an independent PV ground rod? I’ve read both. A recent call with signature solar confirmed the PV (DC) ground should be independent from the house (AC) ground. The inverter would be tied in to the house ground. Thoughts? Also, any objection to using 10awg PV...

Thanks Tim. Any idea why signature solar would say that the PV array should be on a separate ground?

Hi All, We are trying to plan out our future solar system. Currently the house has a main meter socket with 100a double pole breaker. In this enclosure is a ground/neutral bond. Inside the house is a 100a panel with separated grounds and neutral - not bonded. We do not plan to do net metering...

Looking for some help sizing our cables. We ordered 3 48v 200ah LifePO4 batteries. They came with 35mm2 (2awg) EVR cables We plan on having them tie into the manufacture supplied battery combiner box. The box (attached) has 125A breakers with 6awg jumpers going to the combiner plate. From the...

Thanks guys. The max input current documentation from megarevo seems confusing since all of their cut sheets note 12A but their website notes 14A. That was my main concern. When I spoke with them on WhatsApp, I had to explain the discrepancy to them. The signature solar EG4 8K versions still...

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Thanks Tim, so if we did an interlock, we would still be using the N/G bond at the meter? Is there any issues with the neutral still being connected to the grid?

Debating between Megarevo R10KLNA and SRNE ASF48100U200-H for our inverter. We'd like the option to be hybrid, but will mainly have the system back feed into a interlocked electrical panel. Curious to hear everyones thoughts on the two. The Megarevo is about double the cost of the SRNE...

We are working on spec'ing our system and trying to figure out what will work best for us. I've been trying to do research on zero export for various hybrid inverters. Unfortunately, it doesn't seem like there is much information on how the electrical panels are set up. Is it possible to wire...

Thanks. The battery cables are listed at 125*C. Regarding the draw, I'm looking at our invert cutsheet and not sure where I can locate that information. We have the Megarevo R10KLNA. The max charge/discharge rate is 210 amps. The battery voltage range is 40-58 with a max charge voltage of 58v...

I have (3) 48v 200ah LiFePO4 batteries wired to a combiner box. They are connected to a 10kw Megarevo inverter. My inverter currently has the charge rate set to 25A. My friend has the same set up on a Solark and his is set at 125A. Is it possible to increase my charge rate or will that damage...

We’re looking to import some larger lifepo batteries and inverters from China to Puerto Rico. We are trying to get an understanding of any additional import costs outside of the shipping costs. Puerto Rico does not have sales tax on items associated solar, but not sure how that would work at...

The cut sheet calls for a min voltage of 120v and max at 500. https://www.megarevo.com/upload/download/2023-08/64ccaa13b6890.pdf I had a friend with a Solark where the mppts didn’t turn on because the voltage wasn’t high enough.

Im trying to best configure my PV array based on what i can fit on my roof. We have ordered a megarevo R10KLNA. It allows for 13kw's of PV input. Dividing that by 4 (mppt limits) gives me 3250 kw per mppt. The spec sheet notes that max input current of a single MPPT (A) is 12. The mfg has...

Question on calculating kWhs on lead acid batteries and comparing to LifePo batteries. We currently have 24 2v Rolls S2 L16 lead acid batteries wires in series. It has a Ah rating 1169 Ahs at 20hrs. At 48v x 1169Ahs, that would give us 56,112 whs or 56kwh. If we divide by 2 for 50% usable...

My batteries are on the way and I’m trying to plan everything out ahead of time. I have (3) 48v 10kwh LifePO4 batteries and a combiner box coming. The combiner box has 4 breakers. 3 in and 1 out. What’s the best way to terminate the stranded battery cable into the breaker? I’m not sure of the...

Yes, it has the solid/dashed line for DC