Rosen Solar from Alibaba, anyone have experience?

the_colorist

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Its likely its a 12kw inverter with 15kw mppt as i have seen a spec sheet on one deye distributor was selling before the lockout.
I can attest to this as well having dealt with Deye directly. We are now prepping a new line of inverters to offer though that we feel will largely surpass the new 15K coming out all the way around. Hope to have it available early next year for the US market. Will have up to a 12KW true inverter output. Testing a 10KW pre-production sample very soon.
 

TKB4

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I can attest to this as well having dealt with Deye directly. We are now prepping a new line of inverters to offer though that we feel will largely surpass the new 15K coming out all the way around. Hope to have it available early next year for the US market. Will have up to a 12KW true inverter output. Testing a 10KW pre-production sample very soon.
Great to hear I could get by pretty well with 12k output but would still like to have the inverter to be able to supply a 15 kw passthrough from the grid. Do you have an idea of what the max passthrough from grid would be on the upcoming true 15 kw offering ?
 

Roqm

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Great to hear I could get by pretty well with 12k output but would still like to have the inverter to be able to supply a 15 kw passthrough from the grid. Do you have an idea of what the max passthrough from grid would be on the upcoming true 15 kw offering ?
Because solark modifies the inverter to their likes its hard to say, only have the deye version for reference.
 

the_colorist

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Great to hear I could get by pretty well with 12k output but would still like to have the inverter to be able to supply a 15 kw passthrough from the grid. Do you have an idea of what the max passthrough from grid would be on the upcoming true 15 kw offering ?
I don't have specs on this so I can't say. I suspect however we're looking at a SOL-ARK 12KW inverter with a 15KW PV input because that would mimic the Deye version. If that's the case it would be true to form based on the current naming convention and what I know of Deye's internal product line. I suspect 70A passthrough.

One of our new models (Huayu) will be a 12KW inverter with a ~24KW PV input. We're working on a 90A passthrough as well.
 
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offgridwelder

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I want to hea
I can attest to this as well having dealt with Deye directly. We are now prepping a new line of inverters to offer though that we feel will largely surpass the new 15K coming out all the way around. Hope to have it available early next year for the US market. Will have up to a 12KW true inverter output. Testing a 10KW pre-production sample very soon.
I want to hear more about this is it designed and manufactured by deye?
 

TKB4

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I want to hea

I want to hear more about this is it designed and manufactured by deye?
That sounds really good. More and more people will be wanting to charge electric cars and using the cars designed to do so as backup batteries too. I can see 2 electric car families with one vehicle at home most of the time soaking up all the excess home PV and either swapping the stay at home vehicle every other day or even in future charge one vehicle from another. In all these cases will need a lot more pv input.
 

TKB4

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I don't have specs on this so I can't say. I suspect however we're looking at a SOL-ARK 12KW inverter with a 15KW PV input because that would mimic the Deye version. If that's the case it would be true to form based on the current naming convention and what I know of Deye's internal product line. I suspect 70A passthrough.

One of our new models (Huayu) will be a 12KW inverter with a ~24KW PV input. We're working on a 90A passthrough as well.
A 90 Amp passthrough would be very useful especially with on grid use where it would be nice to connect the inverter to the whole service panel and use the grid to get high start up power loads working then inverter will run them without soft starts etc in many cases.
 

houseofancients

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Yes tess 48v 100ah batteries commucate with growatt and victron inverters. https://www.tesselectric.com/wp-content/uploads/2021/11/Specs-Sheet.pdf

$1500 with lcd screen 😍
what exactly does this have to do with the Question about rosen ?
this is company spoofing
 

JAndle

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Hello dears,
Any update on rosen batteries I am looking to buy 48v 100A to work with growatt 5000es? Do you recommend?
I was planning Rosen but got a better package from Wisdom/BSL, departing for me soon (at the logistics company). 51.2V 200AH - 5 plus a custom combiner and a sixth solo. the 200AH batteries were under $2000 when I bought but prices are up. Using them with Sigineer but they are identical to Growatt (the 240V EU style 5000AH models)
 

JAndle

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apologies in advance for going sideways on the topic... I am building in Belize where I can bring things in my first year with great tax incentives but after that warranty parts even cost crazy on tax and duty... I spent six months circling around between Rosen (48V vs 51.2V), Wisdom, and Sigineer (slightly more costly) batteries and trying to source only one pallet of Tiger Pro 550W panels (as opposed to one container min order)... My solution is designed to fail gracefully and uses five batteries and three inverters with 21 panels with each battery and each inverter individually breaker protected/isolated. Shedable 240V loads are directly fed, then an ATS, a Victron autotransformer, and core loads. ATS feeds off another inverter, single battery, and 7 panels and that uses a diesel gen as AC input.

I also had to use a logistics company (they have my kit now boarding Hong Kong next week (fingers crossed) and shipping is over 20% of cost. Still I am putting in 15kW of panels, 20kW of inverter, and 60kWh of battery for about $30K plus a local licensed electrician (I hate wiring). As parts start going up I will start a thread on it.
 

the_colorist

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As parts start going up I will start a thread on it.
Looking forward to seeing your thread on this! I would recommend making sure your BL/Commercial Invoice doesn't say batteries and shows as a complete solar package or customs will nail you. We've had it happen before where the shipper made a mistake and had batteries listed/named. Not pretty. 55% plus on batteries.
 
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JAndle

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Looking forward to seeing your thread on this! I would recommend making sure your BL/Commercial Invoice doesn't say batteries and shows as a complete solar package or customs will nail you. Had it happen before where the shipper made a mistake and had batteries listed/named. Not pretty. 55% plus on batteries.
I have a broker on this end who looked over the B/L, but I also have a tax and duty free letter under my visa program, so I expect to be OK.
 

TRW

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I have a broker on this end who looked over the B/L, but I also have a tax and duty free letter under my visa program, so I expect to be OK.
Wow, can you give us more info on your tax and duty free letter under your visa program
 

ProcomLebnon

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Great to hear that, as i understood no one tried rosen batteries ? any tested alternative to work with growatt 5000es
 
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