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  1. C

    Ground mount recommendations

    That is where pounding and welding an array out of steel pipe would work much better than the sinclair. Contact a fence builder.
  2. C

    Ground mount recommendations

    Video of the sinclair ground mount system in action from Engineer 775 (this guy is very respected and knows what he is doing). The video is about the Solark 15, but in it he shows the ground mount sinclair being driven directly into the earth. The sinclair system is engineered, and on an...
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    PV String DC Voltage Limiter

    I understand your written description - now I just need to learn to read and build the diagram. Thank you!
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    PV String DC Voltage Limiter

    I think I crawl up on the roof one time when the neighbor (local utility engineer who approves the solar permits) isn't around and figure out how to rewire the strings without removing panels. Just leave one panel in each string unconnected.
  5. C

    custom made battery box for eve LF280K cells

    I did read the BMS manual. I was aware of the fact it takes time to learn the behavior and capacity via multiple charge/discharge cycles.. I was providing a review of my experience with the battery (as requested), and verifying the experience and documentation match. I was not criticizing the...
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    custom made battery box for eve LF280K cells

    A comparison would be great!
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    custom made battery box for eve LF280K cells

    That is what this entire thread is about. The seplos battery kits were designed in response to sergea's request. My understanding is he footed the cost of the engineering for these kits. That we have them at all is a reflection of his willingness to share his idea with a company and pay for...
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    Sol-Ark 15k Operational Impressions?

    I ran it for a few weeks without batteries as a dc inverter, and ac pass through. It worked, but had a few minor issues. The solarak support was friendly and helpful, and they are the ones who insisted things definitely work better with a battery. Once my batteries were built and attached all...
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    Sol-Ark 15k Operational Impressions?

    Get a seplos Mason kit and build your own batteries. That is what I did for a fraction of the price of the prebuilt units. It will work better, and allow full control of any parameter you need. More capacity, higher quality, higher charge and discharge rates, better control, and cheaper...
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    custom made battery box for eve LF280K cells

    The state of charge is not exact. It took several days of complete charge/discharge for the bms to learn the capacity. It is getting more accurate every day. I have all 4 boxes in parallel. The inverter will report a charge value and the 4 boxes will all have different values, that average...
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    custom made battery box for eve LF280K cells

    Have 4 boxes currently in service. They work as advertised. Charging to 90% and discharging to 10%. Only issue is the battery bms kept changing the desired charge values on the solarak inverter. I reset the charge, float, and equalization values via the solark, and it was changed the next...
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    custom made battery box for eve LF280K cells

    They claim their custom cables use 50mm wire. The 6.0 connector tops out at 25mm and 125 amps while the 8.0 connector goes from 25mm-70mm and would fit the claimed wire size and amp draw. I sure hope they are the 8.0!
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    custom made battery box for eve LF280K cells

    Has anyone successfully purchased the futronics connectors to make your own custom cables? I think they are these ones: https://en.futronics.com.cn/product/88.html but would like to be sure before I order them. Seplos will not confirm the connection type or any other details. They took...
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    Sol-Ark 15k Operational Impressions?

    I have a basement install on the common wall with the stairway. You can hear a little noise in the stairway adjacent to where the inverter is mounted if the fan is running. It is slightly audible through an unisunulated 2x4 and drywall walI. You don't really notice it when it is running...
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    Sol-Ark 15k Operational Impressions?

    Mine has been up is a dc coupled and ac coupled mode. Had a few issues solark support was quick to help with and resolve. The grid sellback setting is a little inaccurate. I am allowed to sell back 10kw. When set to 10,000 watts I was sending back around 10,600, with periodic spikes up to...
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    custom made battery box for eve LF280K cells

    same exact complaints. Opened the boxes and the corners are bent. I have 2 broken fuses, and many missing parts. I found most of the missing screws I need at the local store. One box did not have the two long bottom yellow insulator pieces. Another box is missing the small black rubber...
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    Sol-Ark 15K All in One Inverter Released.

    Ray, they told me exactly what I have posted each and every time. I have tried to share information as accurately as possible. I have spoken with and exchanged emails with a few solark reps over the course of this thread. They are all friendly and helpful. Let me be clear. Why don't you...
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    Sol-Ark 15K All in One Inverter Released.

    In my use case there is a remote shop that already has grid tied solar, and a whole house generator in the shop connected through a breaker in the same service panel as the existing solar. The remote shop electrical line runs from the main breaker panel in the main house. I specifically asked...
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    Sol-Ark 15K All in One Inverter Released.

    Clarification from solark on AC coupling the gen input: "The gen breaker can be used for a variety of things on our inverter. You can program the gen breaker to accept AC coupled solar. When utilizing AC coupling, the inverter will provide the frequency needed to run the AC coupled inverter(s)...
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    Sol-Ark 15K All in One Inverter Released.

    I think we are on the same page. There are 3 possible AC inputs in the lower right side of the solar inverter. You can ac couple on the grid or load inputs of the solark inverter. You can also ac couple on the gen side if you are off grid. So you can technically ac couple on all 3 inputs...
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    Sol-Ark 15K All in One Inverter Released.

    "If you swapped out the 12K for a 15K, you could keep the 11kW array coming in the DC side, and have the 5kW come in on the generator input." I spoke with solark about using ac coupled on the gen input and was told it is a no go. There is a setting in the battery menu to indicate if you are...
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    custom made battery box for eve LF280K cells

    I am at 9 weeks waiting. Also paid for air freight. Was assured 2 weeks ago they would arrive on the 25th (today). The tracking numbers still do not work, and no sign of the boxes. I spent a few days going over the wires, and terminals with adam. He never would confirm the connection type...
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    PV String DC Voltage Limiter

    Unless the neighbor is the utility engineer who approves solar and you are trying to make a change without him knowing. He sees you taking panels off the roof to change strings it will be an issue. Big steep roof - lift and other equipment needed. Maybe if we knew his vacation schedule...
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    PV String DC Voltage Limiter

    Only single large inverter that comes close to a drop in hybrid replacement is the solark 15kw inverter. The strings max out at 500V DC. The solark manual says to not exceed 550V or damage will occur. The current Fronius 11.4kw allows 600V DC and the strings were sized to fit that inverter...
  25. C

    PV String DC Voltage Limiter

    Need a way to limit PV string DC voltage to that allowed by a hybrid inverter. Unique scenario. Imagine a situation where you are unable to change your panels or the string size of the panels (permits, zoning, etc) and you need to limit the DC voltage to a lower value than the string can...
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    Ground mount recommendations

    The vertical pipes are 10 feet in length. The 5 1/2 OD heavy wall pipes are 5-6 feet down. Has anyone ever tried to pull out a ground rod? Try pulling these out. They are then welded together horizontally and on the diagonal brace locking them into a unit that is not easily displaced. They...
  27. C

    Ground mount recommendations

    Not an engineer. Glad you like your system. Just offering anecdotal evidence to the thread author for alternative ground mount options. I would hazard it is faster and stronger than building a home brewed wooden array or other cobbled together rack. If you live in an area which requires...
  28. C

    anyone use oil pipe/drill stem for ground mount ?

    Iron ridge 3 inch brackets on schedule 80 steel pipe using using xr1000 rails. Fit perfect and worked like a charm.
  29. C

    Ground mount recommendations

    I am not aware of a solar specific study either. The pounded pipe or tube is used in place of concreted footers for many styles of steel buildings which do withstand all engineering requirements for uplift. Large agricultural buildings for equipment and hay storage, which are basically just a...
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    Ground mount recommendations

    In fact, pounded steel posts in most soils have greater pull out resistance than augured and cemented. We are talking about posts like this https://wheelermetals.com/store/products/d/19844/pre-cut-pipe-post/four-and-one-half-pipe-post-10-ft If you put this 5 feet in virgin ground it will NOT...
  31. C

    Ground mount recommendations

    Contact someone who builds fences (check craiglist). Your basic corner post fence is a 4 or 5 inch schedule 80 or higher steel pipe that is pounded into the ground and the "h braces" are welded. The same guy can pound the posts wherever you want, at whatever height you need. He will also weld...
  32. C

    Sol-Ark 12K with small generator

    I read something about it on a forum discussing inverter features and gen control. I think it was a victron forum post. They were wanting a delayed load start and also cool down after load period like the solark. I have no personal knowledge, just reposted what I read about the topic. Do you...
  33. C

    Sol-Ark 15K All in One Inverter Released.

    Most towns of any size, and many surprisingly small ones will also have a dedicated electrical supply store that is not Lowes or a home improvement store. They will definitely know all the local electricians. If you need help with anything electrical, go hang out at the counter there for a bit...
  34. C

    Sol-Ark 12K with small generator

    There is a delay in order to allow the generator to warm up without a load. This is to protects the generator. Do you know if the volatage out of the solark generator 2 wire start pinout is 12volts?
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