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The whole point of those packs is that they have a working BMS. If you are not able to parallel them up in sufficient quantity to meet your load demands, why even bother? Snoobler is right. The OP has 8 packs, so a couple hundred dollars total. Why spend much bigger money on an oddball...

beckki: the best units I've worked with are Mitsubishi, Fujitsu and Daiken. ( in the USA) The first two are my favorites. Fujitsu is a better value, but Mitsubishi has some really small head units, like 6000 BTU that are great. And don't forget that there are floor mounted consoles that are...

Ken: What is your opinion of the Magnum? Do you like it? Quality? Noise level? Some people knock them because they have an old fashioned style transformer. I don't see this as a problem per se... I've talked to them on the phone a couple of times, and I got knowledgeable, friendly people...

"SMA's 400V Sunny Boy Storage has three separate DC connections for three batteries. It appears to be a modified version of their PV inverter with 3 PV inputs. The inverter draws power from the three ports which can be at different voltages." Hedges: I cannot find information on this comment...

Hey, I agree with you. My comments are aimed more at the very common situation in millions of households where you turn on the shower, and wait for a minute to get hot water. It truly adds up. And, the vast majority of that water is coming from municipal water systems, not free flowing surface...

mopat: I don't think I did a good job of framing my question. I read that description you pasted in. I also understand WHAT an autotransformer does. What i don't get is if this unit has to be paired with a Sunny Island, or a Sunny Boy, or if it works with other stand alone units. I assume...

Charlesk: Do you already have the PV panels? If not, you might consider bifacial panels. I like that idea of going right over the skylight. Was out looking over my buddies 38' coach (1 slide) yesterday considering the idea of cutting out the floor for the shower, and dropping it a couple of...

Silver88: just reread this thread. You cannot have a closed system, and have it in a tub wrapped with insulation. It must be sealed, and pressurized to use glycol. If you combine with other water heating, the glycol should be on its own loop, and run through a water to water heat exchanger...

It doesn't help. They are supposedly compliant (they cannot get the spelling on the label correct, it seems) but that isn't the same as listed. If the jurisdiction requires listing, it won't fly. A very important point is to find out what year NEC is adopted in your area. The new 2020 code...

JC1409: Instead of the Multiplus 2, you could consider the older series units Multiplus or Quattro, which have a thicker case. It would cost more, but might not be as susceptible to noise transmitted through the case itself. Just speculating...no real world experience to back that statement...

GXMnow; Thanks for the info. My site has many shading issues. Odd shaped house, on a complex shaped lot, with many trees, etc. I have a pretty good Eastern exposure, reasonable Southern, nearly no Western. However, in the Winter, my shading issue is better. The biggest issue for me is the...

Hedges: Would a heavier gauge of wire be better in this situation? Like 10g? Just asking out of curiosity.

Thank you for the links, Hedges. Based on what I read, no hope for me there.

Hedges: The cell tower batteries are 200ah, the 2v batteries are 2000ah. The guy replacing the cell tower units also has another pallet of batteries that appear to have been spot replacements. Those are reading very low voltage, if any. The cell tower batteries were a brand called Data Safe...

Supply good info for people to consider, and you will get answers that are appropraite for those considerations.

GXMnow: Thank you for the reply. To answer your questions: I have read up on The Skybox, but local Outback people think it isn't well executed. They are die-hard Radian fans, and they sell a lot of them. Maybe those two things go hand in hand? From the videos I've watched of it, the Skybox...

eXodus: People here don't value longevity in the same way that people do in Europe and other areas of the world. We have a disposable culture. I've spent a big hunk of my life fixing problems other people created because they didn't want to invest the time or money to do things right the...

YamInaBox: I encourage you to look into solar hot water heating. It works very well, and is not terribly difficult. Instead of responding to your many points, I will make the general comment that many of your assumptions are not accurate. I suggest you read up for an hour or two or three on...

Hedges and High Tech Lab: Now you have done it...brought up the 2020 code. I've tried to do that recently regarding getting equipment installed an approved by my AHJ, and all I got was a bunch of unrelated comments and arguments from people who don't seem to grasp the implications. I won't do...

fafrd: one more please! Assumptions: a house with options for panels oriented in multiple directions, >100kwh batteries already on site that can be set up as 24 or 48 volt, wiring already separated into multiple panels whereby one all 240 loads are in one panel, and other panels are set up...

Mechdriver: I prefer chocolate/raisin/oatmeal...thank you. The electric boiler would be a big mistake. Two years ago, I swapped out one that my friend had running just to heat his work shop. His electric bills went down an average of $150/month when running that boiler. Here in the Midwest...

Check out Surplus Sales of Nebraska for good deals on components. Also, Midnite Solar E panels are a better value than the ones offered by some of the manufacturers. From what I understand, Midnite makes many of those panels for others, like the new Victron VEP. But like MurphyGuy says, you...

Do you have any kind of budget for this? Why is ripping up the floor not an option? Or, I should say, why do you want to proceed without fixing serious problems that are going to plague you forever?

It would be great to economize first, and then design your system, right? Maybe we could address some of the systemic problems we have, like infrastructure that is falling apart. I fear that this forum is becoming just another place for people to flaunt their wealth, and link to videos with...

Melkier: very nice work you have done. I share your pain with the Victorians. I've done a lot of them, the last one being over 12,000sf. That old knob and tube wiring was tough stuff, and often is in pretty good shape. The worst part about it is how they would branch off all over the place...

Ampster: The Mojave is an 8k inverter, and there is also an associated battery storage system. (ESS) I have not read anything about a Mohawk. Is that just a typo?

Keep in mind that the Victron 3000 is volt amps, so about 2500 watts. They are well built, and like others have stated, they have a great system. Personally, I don't buy into all the bluetooth stuff, and using phones to access stuff. But I sure like their equipment. They have a new...

Fafrd: not the Multiplus 2; the original Multiplus in the old fashioned heavy box, and the Quattro. Look on the Northern AZ Wind site, and you will see them. 12v and 24v; not 48v. 3000va only. I was mistakenly told that the 3000va 48v Quattro was also UL, but after I bought it, found out is...

TexasSun: "The Colorist" is located in Belize, is a great guy, and will be selling the Huayu here. He is very knowledgeable. He is also working with the Megarevo line. He was selling a lot of Deye equipment until SolArk took care of that by forcing Deye to stop letting people sell here...

I elected to start a new thread, so people don't miss it if they were not in on the first round. Spoke to Outback rep, who stated that they will be releasing pricing to their dealers in February on the new equipment, meaning the Mohave inverter. He said that for the first 6 months, or maybe a...