diy solar

diy solar

to cheat or not to cheat... that is the question (and some discussion on rebranding equipment)

My 3kW addition is over the 1kW allowed in my NEM agreement and is clearly visible from aerial photos.
Could be, but the average person could not tell you how many watts an Array is capable of by looking at it. Now some enterprising building departments might spot a change to your building and send out an inspector. This happens to us rural folks with the property tax assessors that use Aerial comparison photography to catch new construction.
 
Growatts and MPP are Voltronics
I suggest avoiding making such broad statements. I also suggest taking with a grain of salt anything someone who does so says. Perhaps it’s possible some Growatt products are “rebranded voltronics” but that is absolutely not true for many - mine certainly are not. I suspect the statement is totally untrue and built totally on rumor and assumptions.

@Mattb4 I would like for you to state what Voltronic products my Growatt inverters and batteries are rebranded from?
 
I suggest avoiding making such broad statements. I also suggest taking with a grain of salt anything someone who does so says. Perhaps it’s possible some Growatt products are “rebranded voltronics” but that is absolutely not true for many - mine certainly are not. I suspect the statement is totally untrue and built totally on rumor and assumptions.

@Mattb4 I would like for you to state what Voltronic products my Growatt inverters and batteries are rebranded from?
ha ha ha ha ha so it might not be voltronic, but its somebodies! nobody had heard of gro watt until a couple of years ago... no company slowly climbing the ladder of sale sans success... so I would bet even money that they are rebranded gear... good bad or indifferent makes no matter...
 
ha ha ha ha ha so it might not be voltronic, but its somebodies! nobody had heard of gro watt until a couple of years ago... no company slowly climbing the ladder of sale sans success... so I would bet even money that they are rebranded gear... good bad or indifferent makes no matter...
Show me what it’s rebranded from then, I don’t think you can find anything like it.
 
I suggest avoiding making such broad statements. I also suggest taking with a grain of salt anything someone who does so says. Perhaps it’s possible some Growatt products are “rebranded voltronics” but that is absolutely not true for many - mine certainly are not. I suspect the statement is totally untrue and built totally on rumor and assumptions.

@Mattb4 I would like for you to state what Voltronic products my Growatt inverters and batteries are rebranded from?
Sorry if my statement was too broad. However don't take it personally that Growatt is not manufacturing all their own devices. Name your Growatt device and maybe someone can chase down the Chinese factory that produced it.

Edit: For instance they even use Voltronic in the description of this one in the screen capture below.
1714233113170.png
 
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I suggest avoiding making such broad statements. I also suggest taking with a grain of salt anything someone who does so says. Perhaps it’s possible some Growatt products are “rebranded voltronics” but that is absolutely not true for many - mine certainly are not. I suspect the statement is totally untrue and built totally on rumor and assumptions.

@Mattb4 I would like for you to state what Voltronic products my Growatt inverters and batteries are rebranded from?
Who makes your growatt?
 
could be easily detectable. My point was that PG&E has not said or done anything in two years.

They do keep track of consumption or export at least on hourly level. On their website, I can go back in time and see consumption/ export for any date / time in 1hr intervals .. not sure how many years back. Afaik, I have an old NEM contract. System is from 2004.

They have all the data, but seem not to act on it.

Like with the account that is unpaid for 5+ years.
Another account they dropped the gas connection from the bill. I noticed it months later. Not going to complain.
 
They have all the data, but seem not to act on it.
Yes, that was my earlier point. They either do not use that data for exception reports or are too busy to make it a priority. It should be mentioned that with PG&E they have to toggle something in your meter or their accounting system for export to show up on those reports. I don't know enough about their internal management reporting to know what kind of exception reports are available or when they are available?
EDIT: I should mention that in one case I had an approved building permit and a completed application for interconnection but there was a delay of six months getting the PTO. I operated the system for that six months without any adverse action by PG&E. It is a risk management decision by other readers if they want to follow that example.
 
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Who makes your growatt?
Please read what is being discussed: the statement was made by @Mattb4 that all Growatt products are rebranded Voltronic products. My system is described in detail in my profile, I challenge anyone to find a Voltronic product anything like the Growatt inverters or batteries I am using, there is nothing anywhere near similar enough to meet any reasonable idea of a “rebranded” product. Rebranding means a different marketing name “brand” for an existing product- for example we all have seen very similar or virtually identical inverters sold under several different brands, my point is that if it is true of some Growatt products it certainly is not the case for the inverters and batteries I’m using - or if you think I’m wrong show me the other product out there it is a rebrand of.
 
However don't take it personally that Growatt is not manufacturing all their own devices. Name your Growatt device and maybe someone can chase down the Chinese factory that produced it.
Feel free to read my profile if you want to see what I have. Also, let’s keep this limited to your initial statement regarding rebranding as opposed to what factories the parts come from and where final assembly happens, absolutely nothing in our current world is turnkey manufactured under a single roof.
 
Feel free to read my profile if you want to see what I have. Also, let’s keep this limited to your initial statement regarding rebranding as opposed to what factories the parts come from and where final assembly happens, absolutely nothing in our current world is turnkey manufactured under a single roof.
whatever... you need to grow a tad bit thicker skin
 
whatever... you need to grow a tad bit thicker skin
Nothing whatsoever to do with skin thickness or hurt feelings- it has everything to do with trying to get people to not spread false and misleading information on a technical forum. Their is nothing whatsoever wrong or improper with challenging statements that do not appear to have any factual basis whatsoever.
 
ha ha ha ha ha so it might not be voltronic, but its somebodies! nobody had heard of gro watt until a couple of years ago... no company slowly climbing the ladder of sale sans success... so I would bet even money that they are rebranded gear... good bad or indifferent makes no matter...
Most inverter companies nowadays are rebranding to some extent. Keep in mind that Deye made Sol-Arks inverters for years, even as they were claiming they were US made. Heck, even Midnite Solar is having another company build their inverters.

That being said, "someone else made the inverter" is not necessarily a bad thing. If the company selling the product gets deep into the OEM's design cycle, either by auditing their process control, attending design reviews, demanding a specific test regime, requesting changes or actually providing marked up or new schematics (ideally all of the above) then the quality can be quite high, and at that point "rebranded" isn't a bad thing.
 
ground anchors.. based on my calculations this setup can withstand any hurricane that could impact in my area.
LOL No! Well then I again I guess it depends on were you live and how powerful a Hurricane is by time it can reach you. Far enough inland and you will never get a Cat 4-5.
A direct hit from a Cat 5 and the only thing you will be able to find is the 6x6 on the grass and a bent over pipe.
 
Heck, even Midnite Solar is having another company build their inverters.
Keep in mind that “rebranding “ and “some other company makes part or all of it” is not the same thing. Rebranding means you can by virtually the same thing under a different brand. I still challenge anyone to identify a “rebranded” inverter anywhere close to the Growatt inverters and batteries I and others are using. What I’m using is described in some detail in my profile. This “sub thread” started when someone stated that all Growatt products are rebranded products voltronics - the inverters I’m using falsify that statement- I’d be happy if someone could show me one. Too many people make bold statements without the willingness to cite facts to back the statement up.
 
LOL No! Well then I again I guess it depends on were you live and how powerful a Hurricane is by time it can reach you. Far enough inland and you will never get a Cat 4-5.
A direct hit from a Cat 5 and the only thing you will be able to find is the 6x6 on the grass and a bent over pipe.
haha, yes you are right, nothing will withstand cat 4 and 5 here... The 2 hurricanes that had hit in the last 20 years were just category 1, requiring me to fix 2 posts from my fences and roof replacement because several shingles were off. My portable basketball survived stand up.
 
Keep in mind that “rebranding “ and “some other company makes part or all of it” is not the same thing. Rebranding means you can by virtually the same thing under a different brand. I still challenge anyone to identify a “rebranded” inverter anywhere close to the Growatt inverters and batteries I and others are using. What I’m using is described in some detail in my profile. This “sub thread” started when someone stated that all Growatt products are rebranded products voltronics - the inverters I’m using falsify that statement- I’d be happy if someone could show me one. Too many people make bold statements without the willingness to cite facts to back the statement up.
Hey, this is my post... enough about copies of inverters or originals... they are off the topic. You can create a new post and discuss all you want about inverters origins.
 
Keep in mind that “rebranding “ and “some other company makes part or all of it” is not the same thing. Rebranding means you can by virtually the same thing under a different brand. I still challenge anyone to identify a “rebranded” inverter anywhere close to the Growatt inverters and batteries I and others are using. What I’m using is described in some detail in my profile. This “sub thread” started when someone stated that all Growatt products are rebranded products voltronics - the inverters I’m using falsify that statement- I’d be happy if someone could show me one. Too many people make bold statements without the willingness to cite facts to back the statement up.
Can you link a picture of the Inverter?
I don't see your profile page.
 
Keep in mind that “rebranding “ and “some other company makes part or all of it” is not the same thing. Rebranding means you can by virtually the same thing under a different brand. I still challenge anyone to identify a “rebranded” inverter anywhere close to the Growatt inverters and batteries I and others are using. What I’m using is described in some detail in my profile. This “sub thread” started when someone stated that all Growatt products are rebranded products voltronics - the inverters I’m using falsify that statement- I’d be happy if someone could show me one. Too many people make bold statements without the willingness to cite facts to back the statement up.
I stated it, sorry if you got your panties in a bind... Which do you need?...Vagisil or Preparation H. ?

The majority of us accept the fact that rebranding occurs.

So your units have one trinket different or a slightly modified operating system from a mass produced voltronic/deye/whatever the newest thing from china is... whoopidty doo! its still a clone or so close that the rest of the forum calls it as such.
 
Some updates here, I purchased a
  • transfer switch, and bought an
  • Oupes Mega 2 power station (2500W, 2048Wh).
I liked that one because for $1200 you get solar input up to 2100W which is more than my 1170 watts solar panels produce, and it accepted 12 to 150 volts so if I want to place them in Serie the 147 volts (sum of Voc) will be fine. As well it would be fine if I want to use some 24V batteries with an MPP controller to the input and add capacity. I selected the circuits to connect analyzing the highest historical consumption from each of them from my Emporia energy monitor to get a total of 1000W to make sure my panels would be able to support that consumption without relying on the AC input, at least during a good sunny day.

Anyways, I read on some other forums that you don't connect the neutral from your transfer switch to the main panel. But the instruction on the transfer panel indicated to connect them, so I connected it. First thing I noticed is that some circuits in my panel with ARC breakers activated protection, but when switched over to the power station on the transfer switch, everything worked fine. Perhaps, still being disconnected from the load the arc breakers still kept activating protection, like .
Anyways, it was almost Sunset, so I connected the panels, and the input started showing up to 150 watts, and going down minute by minute. Battery arrived at 66%, so I connected it to the AC so that it can get charged 100% since the remained 30 minutes of sun will not be enough.. Total charging power incremented slowly to more than 1000W, so I switched to low speed charging so it can get from the grid a max of 800W. At 100% charge I connected the battery to the transfer switch using the TT30 cable, and all the circuits in the house that I connected to the transfer switch were alive again.

Kept monitoring with the app the consumptions of my loads and from my emporia the consumption of the circuit charging the battery, both numbers were almost the same, around 300W all night.
This morning it was haze again , and the app indicated only 9 watts from the solar panels. I waited until noon and it never moved from there. So I disconnected the AC cable to see if the solar panel inputs shows something different on the app, and yes, it started to climb the number up to 100W, but at the same time some buzz sound could be hear inside, and suddenly it shutdown completely. Overload protection switch was not activated, the device was unresponsive to any button. May be having the transfer switch neutral connected to the panel created an issue, or not but .. it is just a big brick now. It may be defective the unit so I am requesting a replacement. In fact, something I noticed overnight (I could not sleep well because I got the new battery toy), the AC input watt on the app showed as just 30 watt, while the output shows as 300W. But on my emporia I could see it was actually taking the 300W from the main panel.

I was expecting something better from the app, like control of turning on/off the outputs, or monitoring consumption for each outlet, but all it provides is input watts, AC cable and solar panel input. there is a graph, but it shows probably only the last minute, and all history is gone. And well, the AC input watts number was also wrong. First connection from the app to the battery was not easy as well, since instruction called to push a button for 3 seconds so wifi and BT start blinking, but those were only blinking while I kept pressed the button, the moment I released the button they stop blinking. So, I had to maintain the button pushed so that it could be connected to the app.
 
After reading the "Grounding Made Simpler", I concluded my installation is fine. I looks like the Mega 2 is neutral-ground unbounded with my multimeter measurements, but I had also asked the question to the manufacturer to double confirm. Finally it is the sun at max, and temperature and RH as well (very hot), so it is a shame I cannot take advantage of the sun to reduce my electricity bill. Replacement requested already to the vendor, and I am so used to Amazon where they ship it immediately that waiting for this other vendor to reply, confirm and ship replacement is an eternity, probably not worth the $100 savings over Amazon. Hopefully next year, I would expand my system and use an AIO system like the majority on this forum. By the way, I had already changed the title of this post, so you guys can continue discussing about who manufactures to what brand...
 
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A week since defective oupes reported, and still not an RMA from vendor to return / replace the unit...
 
Why no body told me there are AIO that does not require battery? that would be the nearest to my original cheap option of grid tie but without grid feedback. I just ordered the Growatt LVM 3000TL-ES for much cheaper than a power station with a battery, and if I want in the future to add a battery I still have that option. Even adding a 2560wh battery plus the AIO will be around $1000 usd, considering I bought that trash oupes for $1200.
 
That has not been my experience in California but my case may be unique. I have had three GT setups and received Permission to operate for one with SCE and for two with PG&E. In all those systems I have increased the capacity after the fact and never got a phone call or a message from either power company. My latest clandestine increase is on an 8 kW system which I added 3kW of additional panels for a total of 11kW. I rarely see more than 8.5kW of production at any one time and with overhead and house loads the export rarely exceeds 7.6kW. That peak output only for about an hour because the additional panels are West facing and peak at a different time than my main system. My total kWhs exported is less than 70% of what my permitted system could produce because I charge two EVs from excess solar during the day and usew batteries to avoid using the grid during peak times. Both those things may mask my clandestine increase in capacity.
Thanks for this tidbit!!
 
Why no body told me there are AIO that does not require battery? that would be the nearest to my original cheap option of grid tie but without grid feedback. I just ordered the Growatt LVM 3000TL-ES for much cheaper than a power station with a battery, and if I want in the future to add a battery I still have that option. Even adding a 2560wh battery plus the AIO will be around $1000 usd, considering I bought that trash oupes for $1200.
Have you gotten the growwatt yet? I was about to pull the trigger on buying an Oupes Mega 5. I bought an unbranded version of it called the “Power S5”, and found that it was 1.6 kW short of rated capacity, and then began shutting off at around 26% to 27% remaining capacity per its display as it was discharging. I had to return it. Sales vendor was good about it, and return the money pretty quickly. I was about to buy the brand name, then came across this forum. I want something that I can charge from my homemade solar array and discharge at the same time without causing damage to the unit. Maximum discharge so far is 450 W. Maximum charge. 750 W at 77 V.
 
Have you gotten the growwatt yet? I was about to pull the trigger on buying an Oupes Mega 5. I bought an unbranded version of it called the “Power S5”, and found that it was 1.6 kW short of rated capacity, and then began shutting off at around 26% to 27% remaining capacity per its display as it was discharging. I had to return it. Sales vendor was good about it, and return the money pretty quickly. I was about to buy the brand name, then came across this forum. I want something that I can charge from my homemade solar array and discharge at the same time without causing damage to the unit. Maximum discharge so far is 450 W. Maximum charge. 750 W at 77 V.
look at my signature for my final setup... I finally returned the oupes and got a refund.. then bought the growatt, and a small ecoworthy 50ah 48v battery (same capacity as the oupes). It was working everything really good until I got a visit from my utility company because on the mode (Solar and utility same time, and battery if utility went down) I set the growatt, it backfeed a small amount for around 10 minutes after 2 weeks. I changed the mode to Solar and Battery that changes back to utility if no sun or battery reach certain low level I set; so far that mode does not export back to grid. I am getting another ecoworthy battery because on sale for $400 on ebay, and that will allow me more time on cloudy days. Definitely those oupes or bluetties, is not an option for home. Just check what system works for the Vocs of your batteries, and mppt, eg4 or growatt are good economical choices. You can get your system cheaper and maintenance and troubleshooting will be better, because for example with the oupes, it just went as a brick... and nothing else to do.
 
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