diy solar

diy solar

NEWS: New Midnite Solar DIY Series - SCC's & Inverters (great $ too)

I don't know about the Chinese brand inverters because I don't have any, but there are a lot of cr*p products from no-name brands that fail quickly. I would guess components and/or design. Midnight in this thread has mentioned protection circuits, which of course make a big difference in letting the inverter live to fight another day. Stress-testing and iterating in design of course, to find what your designers missed.

Also quality name brand products built in China. Even for US manufacturing, you have to police your suppliers or they will falsify test results and ship out of spec/defective products. In China, much of the electronic manufacturing is performed for US companies by Electronic Contract Manufacturers with factories there (and elsewhere.) It is their job to do that policing, and obviously do considering the quality of iPhones and other products we buy. But they can also be the ones making substitutions of cheaper components and skimming the difference. When you built a product for about 7% over raw component cost and profit 1% or 2%, that can be very tempting. Sometimes, they've been caught with their hand in the cookie jar.

Nope. MidNite themselves have not said anything about building in more protection. I wish they did though ! Would like to find out where that is mentioned so I can try to change that statement.

Yes, there are certainly plenty of crap coming from China. But lots of good crap as well. They are getting good at this.

The MidNite DIY series are an "If you can't beat 'em (on price), join 'em" type of thing but with some added benefits like Epanel and combox-- (both coming) as well as decent support (hopefully) in addition to MidNite products manufactured in the US.
 
Nope. MidNite themselves have not said anything about building in more protection. I wish they did though ! Would like to find out where that is mentioned so I can try to change that statement.

Yes, there are certainly plenty of crap coming from China. But lots of good crap as well. They are getting good at this.

The MidNite DIY series are an "If you can't beat 'em (on price), join 'em" type of thing but with some added benefits like Epanel and combox-- (both coming) as well as decent support (hopefully) in addition to MidNite products manufactured in the US.

Turns out I May have been slightly wrong. There have evidently been some changes influenced by Midnite solar on these rebranded SRNE inverters. Probably nothing you would be able to tell by looking at the insides though. Software possibly and maybe a resistor change but that would be pretty hard to find to see a difference. FETs and capacitors I typically see in Chinese inverters and CCs are already good (so far as I have seen).
 
Last post from me for a while as I don’t have time to watch MidNite torn to shreds here. I respect will’s opinions. He is usually right on. I need to point out a couple of things though that he may not be aware of.
1. Off grid homes have the same laws governing solar installations as utility connected. In the USA and Canada the products need to be listed and the installations need to follow CSA or NEC code. The fact that they are off grid doesn’t change a thing. Some locations require inspection and some allow the home owner to do it with no inspection, but the rules are all the same. Most Chinese inverters cannot be installed code compliant. That means overcurrent devices, disconnects and no exposed cables.
2. MidNite Solar uses the distribution method. That means we have one additional tier of mark up. We do not have the luxury of importing and then selling direct to the customer.
3. There are many fine Chinese inverters out there. The DIY is just one of many. ETL listed inverters are already on the water coming in at some point. You will be able to legally install them as long as it is code compliant. We do not have the luxury of telling people to install things that don’t meet code. That would be a huge liability for us as it is for any company selling products that cannot be installed to meet code. Just having a listed inverter is only part of it.
I am not trying to scare people, but you may want to talk to your insurance company and ask if your equipment and installation qualifies. You don’t want to find out the hard way that you don’t have the insurance you thought you had.
 
Last edited:
And this is above my pay grade but more efficient chip innards:

I didn't know Bob Gudgel worked for Midnight Solar. He is a contributor to the Power Supply Design Center on FB. It is good group for power guys. (Edit) or is it another Gudgel?
 
Last edited:
Last post from me for a while as I don’t have time to watch MidNite torn to shreds here. I respect will’s opinions. He is usually right on. I need to point out a couple of things though that he may not be aware of.
1. Off grid homes have the same laws governing solar installations as utility connected. In the USA and Canada the products need to be listed and the installations need to follow CSA or NEC code. The fact that they are off grid doesn’t change a thing. Some locations require inspection and some allow the home owner to do it with no inspection, but the rules are all the same. Most Chinese inverters cannot be installed code compliant. That means overcurrent devices, disconnects and no exposed cables.
2. MidNite Solar uses the distribution method. That means we have one additional tier of mark up. We do not have the luxury of importing and then selling direct to the customer.
3. There are many fine Chinese inverters out there. The DIY is just one of many. ETL listed inverters are already on the water coming in at some point. You will be able to legally install them as long as it is code compliant. We do not have the luxury of telling people to install things that don’t meet code. That would be a huge liability for us as it is for any company selling products that cannot be installed to meet code. Just having a listed inverter is only part of it.
I am not trying to scare people, but you may want to talk to your insurance company and ask if your equipment and installation qualifies. You don’t want to find out the hard way that you don’t have the insurance you thought you had.
I have committed the sin of not paying as much attention to the NEC and listings as I should have. I believe that most insurance company would be happy to find a reason to deny a claim for your house when you burn it to the ground. I also believe they are more likely to deny a claim if you do not have a mortgage and no bank is involved. I would advise any DIYer who reads this to pay good attention to it and I consider it my best advice.
 
Turns out I May have been slightly wrong. There have evidently been some changes influenced by Midnite solar on these rebranded SRNE inverters. Probably nothing you would be able to tell by looking at the insides though. Software possibly and maybe a resistor change but that would be pretty hard to find to see a difference. FETs and capacitors I typically see in Chinese inverters and CCs are already good (so far as I have seen).
clearly articulating this up front in marketing material might give competitors an opportunity to copy notes, but also give people considering the device the chance to understand why they would want it at a level of merit.

cheers and again thanks for manufacturing hardware and selling equipment to enable people in the usa and other places to convert the local insolation into autonomy. what a great way to be. ☀️
 
Ha! That's pretty funny. You could say boB (his somewhat famous reversed capitalization signature) and Robin Gudgel work at Midnite, since they started the company. They also started Outback.

Come on boB and Robin! Speak up for yourselves! :)
Yea, way funny :) Like I said, I know of Bob from Dr Ridley's power engineer page on FB.
 
Off grid homes have the same laws governing solar installations as utility connected.
I'm glad this fact came out. The NEC (National Electric Code) is heavily influenced by the NFPA (National Fire Prevention Association). Fire and electrocution risks are probably higher off grid, especially DIY systems. I know my first system was.
 
Nope. MidNite themselves have not said anything about building in more protection. I wish they did though ! Would like to find out where that is mentioned so I can try to change that statement.

It wasn't regarding DIY, rather Rosie.
But I thought if you had such architecture, you could have it added to DIY. My speculation that might be one of the customizations.

 
Hedges, where did you hear about hardware or software changes to the SRNE controller or inverter/charger ?

The only differences that I know of would be the E-Panel and the combox to make the inverter have a web server which would be manufactured here in the US.

Straight from the Robin's mouth:

 
Hedges, where did you hear about hardware or software changes to the SRNE controller or inverter/charger ?

The only differences that I know of would be the E-Panel and the combox to make the inverter have a web server which would be manufactured here in the US.

Here is where I originally got the idea:

"These products and a few more to come next year are made for MidNite by SRNE. They fill a gap where we cannot compete. They re not low quality crappy Chinese products at all. We have been testing them for years. You will see over time the big divergence between SRNE standard products and the MidNite DIY versions. More and more of our engineering suggestions are making it into the DIY series."

Re-reading, I see the difference between my remembered impression and what it actually says.
Midnight's suggestions are being incorporated. That would make all their products better, but not differentiate yours.
The big divergence we can see will come later. (When that does happen, please let us and Will know what to look for.)


Five months ago Will wrote he tested the same unit (as a Renogy.) He didn't like it, and referenced Amazon with many bad reviews.
Looks to me like many but not all of those could be attributed to firmware.
Have your already recommended changes fixed those issues?

 
Here is where I originally got the idea:

"These products and a few more to come next year are made for MidNite by SRNE. They fill a gap where we cannot compete. They re not low quality crappy Chinese products at all. We have been testing them for years. You will see over time the big divergence between SRNE standard products and the MidNite DIY versions. More and more of our engineering suggestions are making it into the DIY series."

Re-reading, I see the difference between my remembered impression and what it actually says.
Midnight's suggestions are being incorporated. That would make all their products better, but not differentiate yours.
The big divergence we can see will come later. (When that does happen, please let us and Will know what to look for.)


Five months ago Will wrote he tested the same unit (as a Renogy.) He didn't like it, and referenced Amazon with many bad reviews.
Looks to me like many but not all of those could be attributed to firmware.
Have your already recommended changes fixed those issues?


I don't know the exact changes that were suggested to SRNE but evidently there were a few ideas. Surge may have been one. Chinese inverters do not surge very well. Maybe some communications enhancements. I'm pretty sure there were communications requests so we can have the inverter/charger connect to our own commbox to output some more useful information.

Other than that, I haven't been too involved. Too busy working on our own new products.

Just tonight though I got interested enough to go across the street where the Epanel is being attached to the 5048. It's pretty cool ! I also took a look inside the 5048 inverter. Looks just like most of the other Chinese inverters. Almost thought it was an MPP but not quite. Very similar in construction though. Very well built so far as I can tell. I think I counted 12 TO-247 transistors in the inverter section alone. It is amazing how the Chinese can do this for the price !
 

Attachments

  • PXL_20211221_012620795.jpg
    PXL_20211221_012620795.jpg
    221 KB · Views: 33
Well, I'm glad too that Will responded to my post, because it amazes me that people are still so uninformed about a lot of these matters. His replies have caused a flurry of responses, some with valid info in them.

So Will, I'm not one of the people who is upset about the money you make. What upsets me is the trend that has been created whereby brick and mortar operations are being replaced by people like Amazon, and by people posting videos on YouTube and being paid. I realize affiliate links are legal. I didn't say they were not. My issue is with the countless people who post things that they are not expert about. Even then there could be value to that too, if they are not doing it for pay. I started out liking David Poz videos, but was just stunned that he would allow his toddler to walk around a shop full of dangerous tools, batteries that were opened up, or even carry her on his back while he was using power tools. I commented on this, and my comment was removed. One of his recent videos on a SolArk drew a lot of positive and negative comments, but was pretty indicative of the type of advice you often get on these channels.

What I have liked about your videos are many of the things you mention in your response yesterday. And personally, I admire that you have done well for yourself. My parents started and ran a very successful international company, and paid a lot of employees extremely well. But in the current business climate in the US, I doubt they could do the same thing today.

Back to the topic about the DIY unit. I agree it looks a lot like other units that are sold for less. But you have to be in possession of the facts to make an informed comment, and you did not have them. For example your comment about off grid not needing the approvals. Do what I did, get the latest 2020 code, and read it. I've contacted State and National people on the subject, and talked to our local AHJ at length. The bottom line is that the latest code closes most of the loop holes that people have used in the past to install equipment that isn't listed. The chain is NFPA rules, OSHA mandates, UL specifications for testing, and back to OSHA for the NRTL approved testing labs certifications. The new code even eliminates the concept of having a portable unit, say a trailer, or RV outside that you make into a mobile (or even stationary) secondary power source. If the current is delivered into your structure, it is regulated. There are, of course, many States that have not adopted the 2020 code, but it is happening very quickly. In our area, it went from being possible to install a MPP or similar device if it was not grid tied, to being illegal. It has to have an affixed label from a NRTL. like UL, ETL, Intertek, etc, and your plan cannot deviate from the script at all. For batteries, every component of what they term an ESS has to be listed. How many of the units that you have tested can you provide UL or other approved documentation for? It also applies even to things like fuses, battery switches, buss bars, etc. Even the cabinet. So now, no more Sears Craftsman roll-arounds. The entire assembled device must be listed. By the way, not "compliant"; "listed". The fact that Midnite is going to the trouble to work with the Chinese company to improve performance, and also mate it with an E-Panel so the whole device is ETL approved is definitely worth something. If you are just going to buy an MPP or any other non-approved unit, and then stick it in without a permit, then the approval might not be worth much. Until you get caught, or get into a battle with your insurance company.

Don't waste a lot of time trying to figure out if you are building an ESS, because they define that for you too. If you connect things together, which is pretty much what we all do, that is an ESS. Of course, your AHJ can choose to do what they like, but those guys are probably swamped, and they are going to whip out this new rule book, and make you comply. I know. I asked.

By a freak coincidence, my annual insurance policy for a rental property I own arrived yesterday. The rate went up 29%, and right on the policy limitations page was a reference to their policy on paying to comply with local regulations, and references to limitations on what they would pay if the property was not in compliance with local regulations. Not a lot of detail there, so I have to check into it.

I texted Ian at Watts/247 2 weeks ago about the MPP's. One of them is "compliant". Sorry, no go. I just saw that posting on your forum about Growatt being "approved" by Intertek. It isn't clear if they are "listed". The Chinese often fraudulently make claims that most people have no knowledge about, and they just assume to be true. Do some web searches, type in your favorite brand, and see what devices are on the list. They are required to give you the info needed to verify it. And in many places now, you have to fill out the forms, supply all of the approvals and technical proof before you can even be allowed to take out a permit to begin. One deviation, and you are done.

As more States adopt this new code, there is going to be a flurry of activity by people trying to get around the new rules. I've read a lot of comments about ground mount systems not having to comply with rapid shutdown, so I talked with our local AHJ and Fire Marshall who stated that if 25v DC enters the house, or 60v AC, it is regulated. Still trying to digest that info.
 
Well, I'm glad too that Will responded to my post, because it amazes me that people are still so uninformed about a lot of these matters. His replies have caused a flurry of responses, some with valid info in them.

So Will, I'm not one of the people who is upset about the money you make. What upsets me is the trend that has been created whereby brick and mortar operations are being replaced by people like Amazon, and by people posting videos on YouTube and being paid. I realize affiliate links are legal. I didn't say they were not. My issue is with the countless people who post things that they are not expert about. Even then there could be value to that too, if they are not doing it for pay. I started out liking David Poz videos, but was just stunned that he would allow his toddler to walk around a shop full of dangerous tools, batteries that were opened up, or even carry her on his back while he was using power tools. I commented on this, and my comment was removed. One of his recent videos on a SolArk drew a lot of positive and negative comments, but was pretty indicative of the type of advice you often get on these channels.

What I have liked about your videos are many of the things you mention in your response yesterday. And personally, I admire that you have done well for yourself. My parents started and ran a very successful international company, and paid a lot of employees extremely well. But in the current business climate in the US, I doubt they could do the same thing today.

Back to the topic about the DIY unit. I agree it looks a lot like other units that are sold for less. But you have to be in possession of the facts to make an informed comment, and you did not have them. For example your comment about off grid not needing the approvals. Do what I did, get the latest 2020 code, and read it. I've contacted State and National people on the subject, and talked to our local AHJ at length. The bottom line is that the latest code closes most of the loop holes that people have used in the past to install equipment that isn't listed. The chain is NFPA rules, OSHA mandates, UL specifications for testing, and back to OSHA for the NRTL approved testing labs certifications. The new code even eliminates the concept of having a portable unit, say a trailer, or RV outside that you make into a mobile (or even stationary) secondary power source. If the current is delivered into your structure, it is regulated. There are, of course, many States that have not adopted the 2020 code, but it is happening very quickly. In our area, it went from being possible to install a MPP or similar device if it was not grid tied, to being illegal. It has to have an affixed label from a NRTL. like UL, ETL, Intertek, etc, and your plan cannot deviate from the script at all. For batteries, every component of what they term an ESS has to be listed. How many of the units that you have tested can you provide UL or other approved documentation for? It also applies even to things like fuses, battery switches, buss bars, etc. Even the cabinet. So now, no more Sears Craftsman roll-arounds. The entire assembled device must be listed. By the way, not "compliant"; "listed". The fact that Midnite is going to the trouble to work with the Chinese company to improve performance, and also mate it with an E-Panel so the whole device is ETL approved is definitely worth something. If you are just going to buy an MPP or any other non-approved unit, and then stick it in without a permit, then the approval might not be worth much. Until you get caught, or get into a battle with your insurance company.

Don't waste a lot of time trying to figure out if you are building an ESS, because they define that for you too. If you connect things together, which is pretty much what we all do, that is an ESS. Of course, your AHJ can choose to do what they like, but those guys are probably swamped, and they are going to whip out this new rule book, and make you comply. I know. I asked.

By a freak coincidence, my annual insurance policy for a rental property I own arrived yesterday. The rate went up 29%, and right on the policy limitations page was a reference to their policy on paying to comply with local regulations, and references to limitations on what they would pay if the property was not in compliance with local regulations. Not a lot of detail there, so I have to check into it.

I texted Ian at Watts/247 2 weeks ago about the MPP's. One of them is "compliant". Sorry, no go. I just saw that posting on your forum about Growatt being "approved" by Intertek. It isn't clear if they are "listed". The Chinese often fraudulently make claims that most people have no knowledge about, and they just assume to be true. Do some web searches, type in your favorite brand, and see what devices are on the list. They are required to give you the info needed to verify it. And in many places now, you have to fill out the forms, supply all of the approvals and technical proof before you can even be allowed to take out a permit to begin. One deviation, and you are done.

As more States adopt this new code, there is going to be a flurry of activity by people trying to get around the new rules. I've read a lot of comments about ground mount systems not having to comply with rapid shutdown, so I talked with our local AHJ and Fire Marshall who stated that if 25v DC enters the house, or 60v AC, it is regulated. Still trying to digest that info.
Seems there is a real move by some one or some entity to "turn off" diy power.
 
I do not care. American needs to change how "unfair" it is or else they will grow weak in the global economy, specifically in this sector. Asian countries are excelling at manufacturing these goods, as you have stated. But it is not an excuse or reason for american companies just to give up. And yes, the components have high tariffs, so they need to start making them here in america as well. Tariffs are not an excuse at all.

And these diy units are a metal box with a chinese circuit board inside. Nothing else. You are saying that americans can't build the same thing? They cannot source the components here in america at all? How pitiful do people assume america to be these d

Seems there is a real move by some one or some entity to "turn off" diy power.
I think it is all based on what you need or expect, For example if you have a $250,000 home and have fire insurance and want to install a solar system it should probably be listed, if nothing else to cover you if the place ever burns.

If its a hunting cabin in the woods and has no insurance and you are willing to risk it then I would argue NEC still applies but if you choose to ignore it who cares, it isn't like the insurance company is going to deny your claim. Personally I built a shed far enough away from my house that if it burns oh well. That way I am not worried bout insurance companies etc.

Now that all being said, Lets say my shed catches fire, A fire fighter shows up as the neighbor calls 911. Lets say he gets hurt, maybe even dies for whatever reason. Can he or his family sue me as I used unlisted items and caused a fire? I am not a lawyer by any means so do your own research for sure
 
I texted Ian at Watts/247 2 weeks ago about the MPP's. One of them is "compliant". Sorry, no go. I just saw that posting on your forum about Growatt being "approved" by Intertek. It isn't clear if they are "listed". The Chinese often fraudulently make claims that most people have no knowledge about, and they just assume to be true.
I addressed this in an earlier post, most growatt inverters are LISTED by etl to ul1741

http://etlwhidirectory.etlsemko.com/WebClients/ITS/DLP/products.nsf/$$Search?OpenForm search for growatt
INVERTERS, CONVERTERS & CONTROLLERS & INTERCONNECTION SYSTEM EQUIPMENT
ecblank.gif
Company: SHENZHEN GROWATT NEW ENERGY CO., LTD - Shenzhen, CHINA
ecblank.gif
Product Information: Trade Name(s): GROWATT.

Auto transfer Switch and Transformer, Model Nos. ATS 5000T-US, ATS 11400T-US.

Grid-Connector PV Inverter, Model Nos. Growatt followed by 2000, 2500, 3000 followed by HF-US.

Grid Support Hybrid inverter, Model Nos. SPH 3000TL BL-US, SPH 3600TL BL-US, SPH 4000TL BL-US, SPH 4600TL BL-US, SPH 5000TL BL-US, SPH 6000TL BL-US. Model Nos. MIN 3000TL-XH-US, MIN 3000TL-XA-US, MIN 3800TL-XH-US, MIN 3800TL-XA-US, MIN 5000TL-XH-US, MIN 5000TL-XA-US, MIN 6000TL-XH-US, MIN 6000TL-XA-US,MIN 7600TL-XH-US, MIN 7600TL-XA-US. Model Nos. MIN 3000TL-XH-US,MIN 3000TL-XA-US, MIN 3800TL-XH-US, MIN 3800TL-XA-US, MIN 5000TL-XHUS, MIN 5000TL-XA-US, MIN 6000TL-XH-US, MIN 6000TL-XA-US, MIN 7600TL-XH-US, MIN 7600TL-XA-US. Model Nos. MIN 8200TL-XH-US, MIN 8200TL-XA-US, MIN 9000TL-XH-US, MIN 9000TL-XA-US, MIN 10000TL-XH-US, MIN 10000TL-XA-US, MIN 11400TL-XH-US, MIN 11400TL-XA-US.

PV Grid Inverter, Model Nos. GROWATT 8000MTLP-US, GROWATT 9000MTLP-US, GROWATT 10000MTLP-US.PV Grid Inverter, Model Nos. MIN 2500TL-X, MIN 3000TL-X, MIN 3600TL-X, MIN 4200TL-X,MIN 4600TL-X, MIN 5000TL-X, MIN 6000TL-X. PV Grid Inverter, Model Nos. MAC 50KTL3-X MV, MAC 60KTL3-X MV, MAC 66KTL3-X MV, MAC 70KTL3-X MV. Model Nos. MAC 10KTL3-XL, MAC 12KTL3-XL, MAC 15KTL3-XL, MAC 20KTL3-XL, MAC 22KTL3-XL, MAC 25KTL3-XL, MAC 30KTL3-XL,MAC 36KTL3-XL.

PV Off-grid inverter, Model Nos. SPF 4000T DVM-US, SPF 5000T DVM-US, SPF 6000T DVM-US, SPF 8000T DVM-US, SPF 10000T DVM-US, SPF 12000T DVM-US, SPF 4000T DVM-US MPV, SPF 5000T DVM-US MPV, SPF 6000T DVM-US MPV, SPF 8000T DVM-US MPV, SPF 10000T DVM-US MPV, SPF 12000T DVM-US MPV.

PV Rapid Shutdown System, Model Nos. Growatt RSD BOX 2-2, Growatt RSD BOX 3-3.

PV & Wind Grid Support Inverter, Model Nos. GROWATT 40000TL3-US, GROWATT 36000TL3-US, GROWATT 33000TL3-US, GROWATT 10000TL3-US, GROWATT 12000TL3-US, GROWATT 18000TL3-US, GROWATT 20000TL3-US, GROWATT 40000TL3-US(E), GROWATT 36000TL3-US(E), GROWATT 33000TL3-US(E), GROWATT 10000TL3-US(E), GROWATT 12000TL3-US(E), GROWATT 18000TL3-US(E), GROWATT 20000TL3-US(E). PV & WIND Grid-Support Inverter, Model Nos. GROWATT 6000MTLP-US, GROWATT 5000MTLP-US, GROWATT 4000MTLP-USGROWATT 7000MTLP-US, GROWATT 7600MTLP-US.

Utility-Interactive Inverter, Model Nos. GROWATT 3600MTL-US, GROWATT 4200MTL-US, GROWATT 5000MTL-US.

Utility Interconnection Inverter, Model Nos. 1500, 2000, 3000 followed by -US. Model Nos. GROWATT 1500-US, GROWATT 2000-US, GROWATT 3000-US, GROWATT 8000TL-US, GROWATT 9000TL-US, GROWATT 10000TL-US, GROWATT 11000TL-US, GROWATT 6000MTLP-US, GROWATT 5000MTLP-US, GROWATT 4000MTLP-US, GROWATT 7000MTLP-US, GROWATT 7600MTLP-US.

ecblank.gif
ecblank.gif
ecblank.gif
ecblank.gif
Evaluated to the following:A representative sample of the listed devices have been tested, investigated and found to comply with the requirements of the Standard(s) for Inverters, Converters, Controllers & Interconnection System Equipment for Use With Distributed Energy Resources (UL-1741) and are identified with the ETL Listed Mark.




ecblank.gif
ecblank.gif
Title: INVERTERS, CONVERTERS & CONTROLLERS & INTERCONNECTION SYSTEM EQUIPMENT
ecblank.gif
Company: GROWATT NEW ENERGY TECHNOLOGY CO., LTD. - Shenzhen, Guangdong CHINA
ecblank.gif
Product Information: Grid Connected PV Inverter, Model Nos. 2000 HF-US, 2500 HF-US, 3000 HF-US.

Utility Interactive Inverter, Model Nos. 3600MTL-US, 4200MTL-US, 5000MTL-US.

Utility Interconnection Inverter, Model Nos. 1500-US, 2000-US, 3000-US, GROWATT 8000TL-US, GROWATT 9000TL-US, GROWATT 10000TL-US, GROWATT 11000TL-US, Growatt 10000 TL3-US, Growatt 12000 TL3-US, Growatt 18000 TL3-US,
Growatt 20000 TL3-US.
ecblank.gif
ecblank.gif
ecblank.gif
ecblank.gif
Evaluated to the following:A representative sample of the listed devices have been tested, investigated and found to comply with the requirements of the Standard(s) for Inverters, Converters, Controllers & Interconnection System Equipment for Use With Distributed Energy Resources (UL-1741) and are identified with the ETL Listed Mark.
mpp solar lv6548 is LISTED by TUV to ul1741 https://www.certipedia.com/certificates/72205180?locale=en
Certificate Holder: MPP SOLAR INC.5F, No 72-76, Zhouzi Street, Nei Hu
114 Taipei
Taiwan

Certificate Number: US 72205180
Order Number:238494722
Certified Product: Stand-alone Inverter


Model Designation:
LV 6548
Fulfilled Standards: UL 1741:2010 R2.18

The standard(s) listed here reflect the status at the time of the release of this certificate.
Date of Issue: 2020-12-11
Certificate Type: US Certificate

TUVus Mark (US-Certificate)
Approval for the U.S. Market
This test mark, also referred to as the "TUVus mark," serves as proof of compliance with U.S. national standards.
Authorities Having Jurisdiction (AHJs) across the US accept the TUVus mark as proof of product compliance to published national standards and codes. Retail buyers accept it on products they're sourcing. Consumers recognize it on products they purchase as a symbol of safety.
It shows that a product has been tested and certified by an independent accredited third party laboratory. TÜV Rheinland tests a product sample and conducts repeat factory inspections to assure continued compliance.
The validity of the certificate does not expire unless the standard(s) expire or the client cancels it.
Certified products may be labeled with a test mark.
 
Back
Top