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It's good that you're designing your new residence to be as temperature-stable as possible, and given it's new construction, it should be possible to make it very tight, well-insulated, and efficient. Unless I missed it, you didn't specify how your new home would be heated, i.e., whether you'll...

Someone mentioned elsewhere in the forum that he got his 15K from an installer friend for $5500. While that's not peanuts, it's not macadamia nuts, either. So that must be around the wholesale price (or going rate if you have an installer friend). Setting up a US-based operation, getting UL and...

Did the Sol-Ark folks actually say that? It was reported elsewhere that the optimizers have been in beta testing for quite a while, enough for the company to indicate imminent availability not very long ago. I'm wondering whether the delay isn't due to something else like upstream supply chain...

There are these: https://enteligent.com/nmax-rsd-+-optimizer Similar in price to the projected Sol-Ark MSRP.

I think it would be cool if it can interoperate with Solar Assistant (and Home Assistant, IotaWatt, etc.). Less need for Sol-Ark to reinvent the wheel (and with a proprietary one at that).

At a high level, I guess the best way to think about it is as Sol-Ark's incarnation of a Span smart panel -- i.e., a central point of control for a comprehensive energy management solution -- albeit with fewer breakers. OTOH it will be easier and less expensive to purchase and implement than a...

I don't believe final pricing has been announced. Back when it was first announced forever ago, numbers in the vicinity of $3K were suggested. I think it's been in beta long enough that Sol-Ark can and should pubish several detailed use cases that would estimate -- with reasonable accuracy --...

I think this will likely be the optimal solution in a Sol-Ark environment: https://www.sol-ark.com/sol-ark-introduces-the-smartloads-14/ AFAIK, it is still slated to go GA later this quarter...though wouldn't surprise me if it slips into next. A bit spendy, but it will do a lot more in terms of...

If you decide to do a swap-out, you now have this alternative to consider: https://www.sol-ark.com/optimizers/ A little spendy, but you'll retain monitoring and optimization as well as RS integrated with your 15K, and you'll have only one throat you'll need to choke if you run into any issues.

The spec sheet for the TX 15K-A suggests that it is compatible with all 15K inverters already deployed. https://www.sol-ark.com/wp-content/uploads/2023/03/TX-15K-A-SPECSHEET-1.pdf If you're concerned about it, a call to Sol-Ark should clarify that. Or perhaps if @Carlos_Sol-Ark is listening, he...

It would be interesting to see a comparison between the Tigo and Sol-Ark alternatives in a Sol-Ark environment, ideally informed by field testing. Seems better to make an optimal choice upfront than to wish you had later. The Sol-Arks are priced about the same as the Enteligent NMax, so throw...

A certain engineer has added some new items to his site, with pricing and "add to cart" buttons. You might want to check it out.

For a moment, reading your topic title made my heart skip a beat...

So optimizer pricing (and availability) still TBA?

If one will be running a Sol-Ark 12k or 15k inverter, one advantage with using the new Sol-Ark optimizers is that there's only one throat you'll need to choke if there are any interoperability issues.

FWIW, someone on Reddit replied to a comment I made regarding the optimizers: He also mentioned that this week, Sol-ark has been sending new price lists to US distributors with lower prices on some equipment. I haven't seen that show up yet on at least a couple of websites, but perhaps worth...

Which Enphase? Solid or split-core? If the former, it looks like similar, perhaps better-documented products are available from Leviton, EKM, Schneider/Accusine, and several other manufacturers.

Has Sol-Ark provided any optimizer updates to their channel partners yet?

What baseline consumption are you seeing with those batteries? You have 10 5.3kWh modules, yes? Has Fortress confirmed that what you're seeing is within normal/expected range? If so, I wonder how it compares with similarly-sized modules from SOK, EG4, etc.

Did they mention any details about the PLC TX 15K-A transmitter? Will that be released at the same time, bundled somehow, or be an additional-cost item? Did they say you'd get pricing on that?

Just heard back from someone at Sol-Ark on their optimizers. ETA is mid-to-late June for general availability. @HighTechLab: Dexter, is that your understanding as well?

Spec sheet says maximum 1 module per optimizer. https://www.sol-ark.com/wp-content/uploads/2023/03/O900-80V-SPECSHEET-1.pdf

Just saw the new optimizers featured on Sol-Ark's website (including spec sheets and installation guides): https://www.sol-ark.com/optimizers/ @Carlos_Sol-Ark, any word on when these will be GA?

So just curious...if you were to do it over again, what equipment would you have chosen/installed?

@themizz, did you end up implementing Pytes storage, and if so what's your experience mating the batteries with the Sol-Ark? You may have noticed that Watts247 and other retailers are now selling them for $1750. Perhaps because there's now kind of a successor out there priced around $2K?

Engineer775 with a new install and discussion of a HomeGrid stack with dual Sol-Ark inverters.

FTFY. :p

Well, they do: https://www.pge.com/includes/docs/pdfs/shared/customerservice/nonpgeutility/electrictransmission/handbook/TD-6999B-048.pdf They have tons of rules and regulations online if you're wanting to cure your insomnia.

That's right. My question is whether any of the 15k inverters that @Greg-G is installing are located downstream of the meter or of the main load panel. Or put another way, will he be leveraging the 15k's internal transfer switch and 200A passthrough or not. ETA: PG&E has documented acceptable...

Just curious, line side, or load side.

@Clint-L , see

@Greg-G , I just saw a note from a PG&E Associate Interconnection Manager in San Francisco indicating that the 208v and 240v Sol-Ark 15k inverters have both been SB1 confirmed and appear to be kosher with the utility. Has the situation that you described when you started this topic been resolved...

Hi, John: We haven't implemented a 15k yet. We had been planning to (with Fortress storage) but now that PG&E is rejecting 15K-related applications -- which is being discussed in a thread on this forum -- has gotten us looking at possible HV approaches as we watch how/whether the Sol-Ark issue...

This turn in the discussion brings to mind a famous song...

Thanks, John. It appears the Fortress Arrow has already been put on the supported list for the new Solis gen 6 HV inverter family. Given the approval challenges the Sol-Ark 15k has begun experiencing with California utilities in the past two weeks, I'm considering whether a HV solution would...