I bought 2 of these inverters. they are far from the best inverters under 1000 dollars. I still have one, it just sits on a shelf. I do have the best inverter under 1000 dollars and it is a Growatt 5000 es. They will power everything you can think of your house and garage and your power tools.
I've been researching inverters and trying to decide between the 3000ES and the 5000ES. You have helped me decide on the 5000ES. I am creating a portable system on a hand truck.
I recently found out that the 5000 es is 240v. It would work as a stationary home system connected to a transfer box, but not a portable 120v system, which I need to make.
I saw a pro/con video on the unit where the gentleman gave a few cons. Some were just minor like the space for the wiring, but a couple major ones as well. One was the sine wave at times would have little fit like spasms. Another was the unit would not switch over to Grid power when he had it set to switch because there was still some voltage from the PV but low voltage, he believes because of a condenser, and then would not come back onto the PV when it was supposed to. Didn't happen all the time but enough to be a major issue for him. In his comment section there were others that chimed in stating they have the same issue but they only have for emergency backup so not real concerned about the issue.
That's similar to my experience. I only use it as an inverter. I use separate Victron chargers and rarely connect to the grid unless my batteries get excessively low. Maybe happens once or twice a year. I haven't noticed any issues if there are problems with the sine wave, I run all of my computers, electronics, and some music gear with no issues. Wiring it is a very tight, it could use a better design at the wiring terminals.
@@ReelClearMediaLLC I did catch your charging set up from you video. I am looking into different ways at this time, mainly research. Retired on fixed income but have adult kids living home and electric is through the roof. Looking to offset some cost with a system for running a few things and as emergency back up as well. Looking at building my own system, possibly obtaining used panels also. It does seem however materials are out of stock for many items so it might be an issue now with how the supply is messed up yet again. I liked the growatt for price and ability to expand later if I decide to do so. I just don't want a system that will end up being useless to me after a year or two. Will not be attaching to the grid but will move the items I want to run out of house panel over to a new panel. 3 items will be refer and 2 chest freezers, they don't really use that much wattage per day, so I may put 1 bedroom and living room on it as well. Will look at specs for our washer also as it is on a dedicated circuit.
I am attempting to do a similar setup using a Growatt. I see you mentioned an ATS. Would you provide so me more information on it or perhaps make s short video. I want to absolutely make sure I do not back-feed the grid. Again, thanks for a great video.
Great review , I believe Growatt inverters are good ones, but their problem that they did not their product very well , and they don't have enough content on TH-cam about Growatt in English . ~Thanks
I've been using mine for over 6 months now. I think it's a great inverter. The solar and utility chargers don't work for some situations. I only use the inverter in mine (and occasionally the utility charger). I would buy it again just for the inverter.
@@ReelClearMediaLLC If you can clarify few points I would be thankful. 1-Using batteries becauseillegal which model you recommend . Note : in Qatar we have 240v & 50 HZ like Europe and single Phase & 3Phase . Thanks a lot
@@hamadal-rakeb9655 Sorry I am still looking for better batteries myself. I think you can use two of these SPF3000TL in parallel and get 240v, and set it to 50hz. Growatt might make a model that does just what you need, I'm not sure. They make many models for different voltages/frequencies around the world.
Yes the combiner box has DC breakers made by Midnight Solar. It wasn't neccesary, but I added a second set of breakers to isolate my Victron chargers without having to walk 150' to my combiner panels. You'll have to check with local building codes in your area.
FYI the Growatt has a user-defined battery type option. I believe it could be made to work with the Chevy batteries, if you want to sell your Victrons.
The chevy volt modules I have are 12S and I want the max charge to be 4v/cell or 48v/module. The lowest Growatt voltages for settings 19 and 20 (bulk and float charge) is 48v, but it would tend to charge slightly higher than that. I believe the Growatt may work fine on typical "48v" batteries with 13 or more cells. Also, I have two separate arrays with voltages of 100-120v so one Growatt couldn't handle that. I plan in using the Growatt charger if I add a 3rd array in the future.
The Growatt look excellent for our two RV air cons but I need to confirm with testing that the running watts won’t go over 3000W. I’ll be installing a SoftStart to handle the startup surge so that shouldn’t be a problem.
you can add a third reason why you should not use the growatt MPPT charge controller , which is it only takes 1800 W from PV array . and if you do a deep search you wil find it is an upgraded PWM , not an MPPT at all .
I'm shooting a video on that right now, should be out next week. Basically just attached the hot lead from the Growatt to both legs of the transfer switch, all 6 breakers are on Line 1 now. I just don't run over 3000w total, that's the limit on the inverter, the transfer switch handles 6000w.
Thank you so much. I've been wanting to do this for so long and just couldn't find any info. I just assumed I had to buy a parallel unit. The way you present your material and your editing skills are first rate. Keep up the good work.
It depends on the "open circuit" voltage of your panels. Check the literature on your panels. When wiring in series, multiply the number of panels times the open circuit voltage (Voc). The Growatt can take between 60 and 115 Voc. For example, If the Voc was 25v, four panels in series would give you 100Voc. This is a rough estimate. It gets a little more complicated, there are temperature factors and voltage drop due to resistance, esp. on long runs.
This is a high frequency transformerless inverter that's not going to last very long running inductive loads such as your air conditioner and is far more susceptible to damage from lightning strikes. After operating a factory authorized inverter repair center for over 23 years, When this inverter fails, I would highly recommend installing a low frequency transformer based inverter instead.
Installed the Growatt LVM in the fall of 2020, still running flawlessly. I'm not running any big inductive loads, one of my air conditioners is a 1 ton Midea U-shaped, has a variable speed compressor, and doesn't pull a big surge on startup. The other is a GE 1 ton window AC. I also charge my Nissan Leaf with this system. I agree a low freq. inverter would be better for big inductive loads, well pumps, a 3 ton AC, etc.
I got inspired when I watched your video. I just bought myself one as well, thanks to you in South Africa 🇿🇦 Mine is quite noisy, the fans are running none stop. Is there a way I can fix?
Question: I'm doing some initial connections of this inverter to a 14s 48v battery. Solar array is still not fully installed due to weather. Is it okay to connect only to utility power and battery without solar connection in the meantime so I can charge and discharge the battery? Thanks.
Yes. Put setting 14 (charge source) on anything but OSO so the utility in can run the charger. Settings 12 and 13 will control when the charger kicks in. It's more like a relay, starts charging when battery gets to setting 12, stops charging when battery gets to setting 13. Float and bulk settings don't apply to utility charge. See my video on the settings th-cam.com/video/oDiva1SJwpc/w-d-xo.html Hopefully you'll get a break in the weather soon!
@@ReelClearMediaLLC Thank you! for the timely and excellent reply. Subscribed. Apparently, a new series of storms begin tonight ☹️ Hope you don't mind more questions...about pre-charging the inverter capacitors when connecting the battery: When you connect, did you use a resistor or light bulb to avoid a big spark? If not, did you experience a spark?
@@mikecraig9368 Between the battery and inverter, I have a 120watt dc breaker on the positive cable and a disconnect switch on the negative, so inverter wasn't live when I connected battery. I've seen guys use a big resistor or light bulb on some systems. I don't know if it's necessary with the Growatt, but it can't hurt.
@@ReelClearMediaLLC I think you mean 120amp dc breaker. Also, I was able to connect the battery without the spark that I've seen with other inverters. Thanks again!
Hello, thanks for creating this video it is very helpful. I was wondering whats the kw rating of you're battery bank in the video and how what size array do u recommend for a 10kw battery bank with a 3k growwat inverter?
My battery system has about 7 kwH of usable energy. I'll eventually be replacing it with a larger Lithium Iron battery. The battery isn't the only thing you have to consider when sizing your array. Average daily use is key. Measuring your daily use is the first step to figuring out your array. You can also start small and grow your system after you've been using it for a while. The battery size determines how long you can go with cloudy weather. That being said, my arrays total about 4.8 kW. In reality, I get 3.3kW peak power mid-day, and 10-15 kWh total energy daily. Location and local weather can change the results.
So what do you do as far as ground and neutral if you are using the GW completely independent from your house AC? I plan to get a new panel and from it run AC to outlets in my home independent of the existing wiring.
The 16S LiFePO4 battery bank I'm planning on building has a voltage range from 2.5 X 16 = 40 volts to 3.65 X 16 = 58.5 volts depending on the state of charge. Can you please confirm that this particular growatt model can support this? I couldn't find this detail in the specs sheet or the manual.
In the manual... settings 19 (bulk charging voltage) and 20 (float voltage) are both 48-58.4 volts. setting 21 (low cutoff voltage) 40-48volts.This shuts down the unit. setting 12 (switches back to utility source when voltage drops to this level) 44v-51.2v setting 13 (switches back to battery mode when the voltage rises to this level) 48-58v. Hope this helps. Again, I only use the Growatt as an inverter... I don't use the solar charger in the Growatt, so I don't have any experience with that. Read through the comments to see what other owners have said, some are happy with the built-in solar charger, others are not.
@@ReelClearMediaLLC Thank you so much. I too am initially planning on using this as a back ups inverter to deal with outages. Maybe later I'll plan on getting some solar panels.
@@anonymouse2428 I assume you will be charging from the grid. I was giving you settings on the solar charger. Again, read through the comments, some people were saying the utility charger doesn't go through bulk and float stages, instead it starts charging when the voltage drops to setting 12, and stops charging when it reaches the voltage in setting 13.
@@ReelClearMediaLLC Thank you so much for educating me as I'm new to all this. The seller for the batteries in planning on acquiring, states CC/CV charging at 3.65 volts and 140Amps with no mention of bulk or float. Do I need to use the bulk and float or can I disable them? m.aliexpress.com/item/4000450780132.html?spm=a2g0n.detail.0.0.62d2lM0llM0lqp&gps-id=storeRecommendH5&scm=1007.18500.139671.0&scm_id=1007.18500.139671.0&scm-url=1007.18500.139671.0&pvid=d6adf856-ec3a-4356-b248-aebd0b8ca1cc&_t=gps-id%3AstoreRecommendH5%2Cscm-url%3A1007.18500.139671.0%2Cpvid%3Ad6adf856-ec3a-4356-b248-aebd0b8ca1cc%2Ctpp_buckets%3A668%230%23177981%239_668%23808%235965%23542_668%23888%233325%2316_668%232846%238114%23726_668%232717%237561%23382_668%233164%239976%23788&browser_id=c9b060b57fe84e08961dd89fc03a9d78&aff_trace_key=0ca0481014814e7381bd6f2237d9cdfe-1582497237401-04372-sWqABqDK&aff_platform=msite&m_page_id=0ojzfjelj2gcazte172f6f64dfb1157359ab21c82e&gclid=&_imgsrc_=ae01.alicdn.com%2Fkf%2FH688b42497ef64b5a851c4b581493c6a2E.jpg_640x640Q90.jpg_.webp
Cool video man 👍 i have gotta ask bro where did you get that Tesla, Edison shirt, i must purchase one, and i love AC/DC I'm in 🇨🇦 but born In Australia
It would depend on the startup surge that your pump pulls. I need to eventually run my well on solar backup also. My well pump, like most in the USA, is 240v. When running it pulls 11.3 amps for 2712 watts. The startup inrush surge is 51.14 amps, so 12,273 watts. That's just over the limit for two growatt spf-3000s in split phase. So I have two choices: 1. use a bigger low frequency inverter. The Growatt 6000T DVM has a surch rating of 18,000 watts. 2. replace my well pump with one that has a low startup surge.
Hi Steve Great video How many batteries can you have in this inverter The dealer says that you can arrange 12 but I’ve seen similar inverters with more than 20 kwh battery capacity
The number of batteries is decided by the battery manufacturer. The only requirement that I see in the manual is the whole battery pack should have at least 100 amp-hours, and be a 48v system. Growatt also makes a 24v version, but I like 48v... allows for smaller cable sizes.
@@ReelClearMediaLLC I want to use lithium batteries but the manua says that you need a BMS (conected to the inverter) but my batteries have the BMS integrated How can you set up the batteries?
Can this unit charge the Chevy volt batteries? In the video you mentioned you didn't want to change your setup and the victrons gave you more flexibility, but I wasn't sure if you said if it's possible or not. If it is possible what are the down sides of using the growatt to charge vs victron or different charge controllers. Thanks for the video
Technically, the Growatt could charge the volts, but I decided to keep my Victrons. The volt modules are only 12s, and should only be charged to 4.03V/Cell, 48.3V/Module. maximum. My BMS burned up in the lightning storm, and to be safe and get more life from the batteries, I'm charging to 4.0v/cell, 48v/module. When I tried charging with the Growatt the batteries would charge up around 48.3v. So, if I had a BMS on each of the six volt batteries, it would be OK. It makes more sense to me to invest in new batteries (probably LiFePo4) rather than put more money into a BMS for the volts.
Also, I had two arrays already wired into combiner boxes and cables running 160' to the house. I could only run one of those arrays off of the growatt. So the takeaway is, you have to design your solar arrays around the MPPT charger(s0 you want to use. However, I'm super happy just using the Growatt as an inverter and emergency grid/generator charger.
One more thing... there is an updated firmware with a new charging setting. In setting 5, (the battery type) the new parameter is US2. It is similar to USE but corrects some charging issues. I'm still running old firmware, so can't verify it.
@@ReelClearMediaLLC ok, I'm considering buying the 12kw inverter and I have volt batteries as well. I was hoping I could use it as an all in one so this is very useful information, thank you
@@mosesbear8086 Two things to watch. 1) Solar input to charger needs to be between 60v and 115vdc, maximum 145v. use open-circuit voltage of your panels to calculate. 2) the lowest charge voltage you can set on setting 19(bulk charge) and 20(float charge) is 48v. A BMS is recommended. Also, check the specs for the 12K model and make sure they are the same.
I just turned off setting 15. You may want to try turning off the inverter (power switch on bottom of unit). With the unit off turn off turn off both settings 15 and 17. Then turn the unit back on. Let me know.
@@ReelClearMediaLLC I'm having the same issue as @beefitter. I did all the steps you suggest, such as setting 15 and 17, turning the unit off/on, but the beep is still there. Any further suggestions?
Yes, you use the AC input from the generator. I have a video on the settings (th-cam.com/video/DVVZK3Glr0o/w-d-xo.html&lc=UgxpQp12chwgvb2QDeZ4AaABAg.9HqJvSH2Urv9Hu70-fuBpR&feature=em-comments) and a new video out soon on using it with a generator.
Works really well with a generator. I have a transfer relay that normally supplies power to the inverter from the utility source but if the utility source goes down and the generator is started, it switches to supply power to the inverter from the generator. This allows the inverter to be able to charge the batteries from the generator source during an extended outage if there isn't enough solar. This would allow you to run the generator long enough to top off your batteries, and then shut it off instead of needing to run it 24/7. Major fuel saver then.
Hello , by watching your video i got convince to upgrade my Go Power and morning star set up , just got it last week and set it up the next day , but what i noticed the ground is OPEN when i checked the output voltage , even i hook up the AC input that is properly wired with Ground from the house still the same " OPEN GROUND " Please advise ... Thank you for sharing your knowledge ...
Where does the AC out from the Growatt go ? Are you using a separate breaker box? You need the ground to connect to your house ground, and you need the ground and neutral to be bonded in ONE PLACE for your whole electrical system. There are a few ways to do this, but I need to know how your AC out of the Growatt is hooked up.
Also check the comments from Ben Kanobe on the video linked below. I made a really long explanation of grounding and bonding. I hope to be able to make a video soon, but I've been busy lately. th-cam.com/video/oDiva1SJwpc/w-d-xo.html&lc=Ugy8kTxTihxbTlPxjxd4AaABAg.9L0kqVC4ReG9L2Mpx41uWN
Yes sir , the Growatt AC output got "No ground ", i hook up a "CO" convenient outlet to the AC growatt output terminal " ground , line , neutral " The Growatt AC INPUT is supplied from the house breaker with Neutral and Ground bonded together ,I confirmed that , The battery is supplying the inverter to provide 120 volts AC and the ground is out, confirmed by using a plug in tester for proper wiring , Thank you
I will check that ,I will run a dedicated 30 amps AWG10 wire straight to the main breaker panel to supply the AC INPUT of the Growatt unit , i will update you later , Thank you Sir
Growatt is absolute garbage and their service is worse! I’m off grid and mine went out after 8 months and they wouldn’t ship a new one while I sent the defective one back. It’s 4 weeks since I shipped it in an no word from support. No AC, no refrigerator, nothing. I bought an Outback replacement. My neighbor had 2 go out in 1 year w/ a similar experience with support.
There are inverter manufacturers based in Europe... Magnum, Fronius, SMA, and others. Not sure if they have any all-in-one units with built-in charger and transfer switch. They are great inverters, but more expensive.
Victron has a similar product. The lowest price I've found it for was $1900. They are based in the Netherlands with manufacturing and Slovenia, India, China, Malaysia, Hungary, Germany, Taiwan and of course the Netherlands, etc.
That would depend largely on where you want to install your system Trevor. Victron makes great products, but if you are looking for an all-in-one for split phase (ie; North America) they do not make one. I could be mistaken, but I believe Sol-Ark is the only one doing all-in-ones for NA. But if you are looking to spend more than the >$1000, many companies around the world put together some very nice pre-wired/pre-assembled units that are essentially plug and play.
Hi, great video. Do you know the idle power consumption of this growatt? How many watts does it consume just being on without eco mode? I plan to use this 24/7 powering the same critical loads as you have.
Thanks for the reply. So compared to a standard setup, with just charge controller and inverter, is it still worth it? 50W x 24 hrs is 1200 watt hours everyday just to keep this running. I like the idea of these units but it seems like there is a lot of loss in the system. Is your setup saving you a significant amount off your electric bill?
@@Noah-qt3rq It was not designed to save money on my electric bill, instead it was designed to give me back up power during a power outage. Since I have it already, I use the solar production for charging my chevy volt about 70% of the time, and run my air conditioners at my house. My electric bill is always under $100 / month now. My breakeven would be around 10 years.
Yes, I'm still using it. As an inverter, it works great. It has older firmware, so unfortunately no BMS communication. For on of my two PV arrays, I programmed the Growatt's internal PV charger to the recommended 56v bulk, 54v float. For the second array, I'm still using one of my Victron Smartchargers. I've got a Growatt 5kES that I haven't had time to try out. I might use the charger in that.I'd have to rewire the array for higher voltage and swap out the breakers.
Thanks for your video! I own a Growatt SPF3000TL and 48 v. batteries. Not connected to panels. At the moment, I want to use my Growatt as a backup in case of power outage. If I connect to to the AC, do I have to install a 40 amps breaker to feed my Growatt? I planned to plug it on a regular home power outlet (15A). Will my Growatt try to draw 40 amps (max) or is it adjustable by programming? Thank!
Nice layout, and well done video. As one who's been professionally impacted by the growth of the 'foreign' solar industry, I still prefer US made components, but this unit is very tempting. how would you contrast it to, say, an Outback FXR 3048?
I only have first-hand experience with this Growatt, and before that, a CNBou. I would imagine the Outback, as well as European inverters like Magnum would have superior build quality. They also cost twice what the Growatt does. That being said, I have been using this daily for a few years now with no issues. I've even occasionally pushed it slightly over its 3000w limit and it kept going.
Ian on eBay (see my link in description) offers a two year swap out warrantee. No bluetooth but you can get an optional wifi dongle. I believe you can use the relay to start certain auto-start generators
Hi Steve. Thank you for the good video. Please can I have your opinion of the Growwatt inverter. Is it a entry level, mid range or top of the range unit. I had 3 sales persons/installers trying to talk me out of buying the Growat. I need a system that works. I don't have to arrive in Rolls Royce style.
Growatt seems like a good midrange. The inverter part has been very good for me. Some people have trouble with the utility charger, It doesn't work like solar charger, so instead of maintaining battery in float, it cycles on and off. Depending on your use, that may not matter. I don't use the utility or solar charger in the Growatt, I just use the inverter, and have been happy with that.
Hi, thanks for your video, just today i installed the 24 v off grid. In the Day time it seemingly worked well, except the fan, which was working all the time, even though today was a cold and rainy day here. I have a question regarding the stand-by mode at night. having no experience it seems to me that every minute, the system tries to start itself, all the indicators blink a few times, then the LCD Display tuns on and the fan runs. After one minute everything goes off, Again after one minute the whole process repeats. it goes non stop. Is this behavior a normal stand-by mode for this machine? I am wondering because there is no fault code indicated in the display, and there is no such situation explained in the manual or on the Trouble Shooting table. I appreciate and value your kind effort and time....
.@@rnanubandha1385 Sorry, I leave mine on all of the time, so I haven't experienced that. Looking in the manual, section 4.4, the unit can still charge batteries even when inverter is turned off. Press one of the display buttons and see if it shows any charging occuring.
I haven't got any big motors on mine, the fridge and window ac, but that has a variable speed compressor that ramps up slowly. I've been really happy with mine. I might add a second one for split phase 240 at some point.
@@ReelClearMediaLLC Two in series works well. I think for an average home that it would need four though. Being transformer-less inverters, they don't have the surge capability of a transformer based inverter. Where I live everyone has a well so well pumps need to be added to the mix.
@@mendohomepower7492 What size well pump have you been able to run on two in split phase 240v? My well pump is 1.5hp, 20 amp breaker, but the inrush surge is just over 51 amps for a millisecond.
@@ReelClearMediaLLC One one system there is a 1hp surface pump, on another there is a 1/2hp surface pump and then on another there is a 3/4hp surface pump along with a 1/2hp submersible pump. All of the systems seem to react the same on startup of the pump motors or fridge. The only thing that will cause a reset is something a bit higher on constant draw such as a clothes dryer. I've been looking into slow startup switches that look promising. Much cheaper than going over to slow start pumps such as the Grundfos SQ.
@@mendohomepower7492Thanks. Are those systems split phase, or single phase, and how many inverters? I'd be ok if there were a flicker, I don't plan on using inverters for the pump on a daily basis, just during grid outages. Trying to decide on another 3000TL, or getting the growatt 6000T DVM, which has a big low freq transformer. Heavy beast to mount though.
I bought 2 of these inverters. they are far from the best inverters under 1000 dollars. I still have one, it just sits on a shelf. I do have the best inverter under 1000 dollars and it is a Growatt 5000 es. They will power everything you can think of your house and garage and your power tools.
I've been researching inverters and trying to decide between the 3000ES and the 5000ES. You have helped me decide on the 5000ES. I am creating a portable system on a hand truck.
I recently found out that the 5000 es is 240v. It would work as a stationary home system connected to a transfer box, but not a portable 120v system, which I need to make.
This was a very helpful video, I appreciate the info and detailed walk through! -Sam
Glad you enjoyed it!
You're a blessing for reviewing a growatt. Gonna hop on top of that 6kw
Thanks, I've been happy with my 3kw.
So, how do you contact watt247 for support?
@@davewilson2448 go to watts247.com, Ian's email and phone are about halfway down the right side of each page
Really excellent explanation of the growatt setup
Thanks! You're really good at presenting this info. Calm, measured, thorough, the appropriate amount of enthusiasm etc...right on!
thanks
Excellent job explaining this. Appreciate this
Your demonstration was on point, thank you!
Do you need an electrician to install it? Just in case it goes up in flames and the home insurance refuses to pay? Great video. I love your channel!
Could you please do a video showing how to properly wire a generator to this grow watt?
GENERATOR POWER ISN'T CONSISTANT ENOUGH TO HOOK UP TO YOUR INVERTERS.
Great Seeing you guys here!
We have a new super cool 5kw version as well
Holler at us for any solar needs :)
Which version is that?
Biggest question is about self consumption from battery, ~50-70W ?
Great review. Very well done! Thanks
I saw a pro/con video on the unit where the gentleman gave a few cons. Some were just minor like the space for the wiring, but a couple major ones as well. One was the sine wave at times would have little fit like spasms. Another was the unit would not switch over to Grid power when he had it set to switch because there was still some voltage from the PV but low voltage, he believes because of a condenser, and then would not come back onto the PV when it was supposed to. Didn't happen all the time but enough to be a major issue for him.
In his comment section there were others that chimed in stating they have the same issue but they only have for emergency backup so not real concerned about the issue.
That's similar to my experience. I only use it as an inverter. I use separate Victron chargers and rarely connect to the grid unless my batteries get excessively low. Maybe happens once or twice a year.
I haven't noticed any issues if there are problems with the sine wave, I run all of my computers, electronics, and some music gear with no issues.
Wiring it is a very tight, it could use a better design at the wiring terminals.
@@ReelClearMediaLLC I did catch your charging set up from you video.
I am looking into different ways at this time, mainly research. Retired on fixed income but have adult kids living home and electric is through the roof. Looking to offset some cost with a system for running a few things and as emergency back up as well.
Looking at building my own system, possibly obtaining used panels also. It does seem however materials are out of stock for many items so it might be an issue now with how the supply is messed up yet again.
I liked the growatt for price and ability to expand later if I decide to do so. I just don't want a system that will end up being useless to me after a year or two.
Will not be attaching to the grid but will move the items I want to run out of house panel over to a new panel. 3 items will be refer and 2 chest freezers, they don't really use that much wattage per day, so I may put 1 bedroom and living room on it as well. Will look at specs for our washer also as it is on a dedicated circuit.
I am attempting to do a similar setup using a Growatt. I see you mentioned an ATS. Would you provide so me more information on it or perhaps make s short video. I want to absolutely make sure I do not back-feed the grid. Again, thanks for a great video.
I'm using a Reliance Pro/Tran2 transfer switch. It is a manual transfer switch, not automatic. I'll make a video when I get a chance.
Wonderful and very informative video👍🏾🇯🇲🇯🇲🇯🇲
Great review , I believe Growatt inverters are good ones, but their problem that they did not their product very well , and they don't have enough content on TH-cam about Growatt in English . ~Thanks
I've been using mine for over 6 months now. I think it's a great inverter. The solar and utility chargers don't work for some situations. I only use the inverter in mine (and occasionally the utility charger). I would buy it again just for the inverter.
@@ReelClearMediaLLC If you can clarify few points I would be thankful.
1-Using batteries
becauseillegal
which model you recommend . Note : in Qatar we have 240v & 50 HZ like Europe and single Phase & 3Phase .
Thanks a lot
@@hamadal-rakeb9655 Sorry I am still looking for better batteries myself.
I think you can use two of these SPF3000TL in parallel and get 240v, and set it to 50hz. Growatt might make a model that does just what you need, I'm not sure. They make many models for different voltages/frequencies around the world.
@@ReelClearMediaLLC thanks a lot
Great video, very helpful.
Do you have breakers in the combiner boxes outside? if so, is it necessary to have the panel dc come into the house to another set of breakers?
Yes the combiner box has DC breakers made by Midnight Solar. It wasn't neccesary, but I added a second set of breakers to isolate my Victron chargers without having to walk 150' to my combiner panels.
You'll have to check with local building codes in your area.
FYI the Growatt has a user-defined battery type option. I believe it could be made to work with the Chevy batteries, if you want to sell your Victrons.
The chevy volt modules I have are 12S and I want the max charge to be 4v/cell or 48v/module. The lowest Growatt voltages for settings 19 and 20 (bulk and float charge) is 48v, but it would tend to charge slightly higher than that. I believe the Growatt may work fine on typical "48v" batteries with 13 or more cells.
Also, I have two separate arrays with voltages of 100-120v so one Growatt couldn't handle that. I plan in using the Growatt charger if I add a 3rd array in the future.
The Growatt look excellent for our two RV air cons but I need to confirm with testing that the running watts won’t go over 3000W. I’ll be installing a SoftStart to handle the startup surge so that shouldn’t be a problem.
@@cdevidal Even with the sofstart you may want to check the surge with a meter that can check inrush.
you can add a third reason why you should not use the growatt MPPT charge controller , which is it only takes 1800 W from PV array . and if you do a deep search you wil find it is an upgraded PWM , not an MPPT at all .
I haven't seen that, do you have a link?
I have two questions if you don’t mind 1)Can the growatt operate without a battery? 2)does it have a battery equalization cycle for lead acids?
It requires a battery to operate. It has a charging algorithm for "flooded battery" and AGM. I dont see a equalization cycle setting, though.
It sure would be nice if they had a Windows interface that would duplicate all the settings on the display.
How did you wire 120v into the Transfer Switch when it's expecting 2 hot leads?
I'm shooting a video on that right now, should be out next week.
Basically just attached the hot lead from the Growatt to both legs of the transfer switch, all 6 breakers are on Line 1 now. I just don't run over 3000w total, that's the limit on the inverter, the transfer switch handles 6000w.
Thank you so much. I've been wanting to do this for so long and just couldn't find any info. I just assumed I had to buy a parallel unit. The way you present your material and your editing skills are first rate. Keep up the good work.
Steve, for the Growatt 48v, what is the maximum number of 200w solar panels can I use with this system before I possibly damage the system?
It depends on the "open circuit" voltage of your panels. Check the literature on your panels.
When wiring in series, multiply the number of panels times the open circuit voltage (Voc). The Growatt can take between 60 and 115 Voc.
For example, If the Voc was 25v, four panels in series would give you 100Voc. This is a rough estimate.
It gets a little more complicated, there are temperature factors and voltage drop due to resistance, esp. on long runs.
This is a high frequency transformerless inverter that's not going to last very long running inductive loads such as your air conditioner and is far more susceptible to damage from lightning strikes. After operating a factory authorized inverter repair center for over 23 years, When this inverter fails, I would highly recommend installing a low frequency transformer based inverter instead.
Hi! Which model you can advise for 3kW and 48 V battery? Thank you
Installed the Growatt LVM in the fall of 2020, still running flawlessly. I'm not running any big inductive loads, one of my air conditioners is a 1 ton Midea U-shaped, has a variable speed compressor, and doesn't pull a big surge on startup. The other is a GE 1 ton window AC. I also charge my Nissan Leaf with this system.
I agree a low freq. inverter would be better for big inductive loads, well pumps, a 3 ton AC, etc.
I got inspired when I watched your video. I just bought myself one as well, thanks to you in South Africa 🇿🇦
Mine is quite noisy, the fans are running none stop. Is there a way I can fix?
The fans will run to keep it cool, not sure of any way around that.
Great video
What size breaker box do you suggest using with this controller ?
This depends on your loads.
@@ReelClearMediaLLC Maybe I did not ask the right quaestion. How many amps come out of the converter @ 120 vac
@@benoitlalonde5335 3000 watts ÷ 120v = 25 amps. The manual recommends a 40 amp breaker, and 8 guage wire for the AC side..
Question: I'm doing some initial connections of this inverter to a 14s 48v battery. Solar array is still not fully installed due to weather. Is it okay to connect only to utility power and battery without solar connection in the meantime so I can charge and discharge the battery? Thanks.
Yes. Put setting 14 (charge source) on anything but OSO so the utility in can run the charger. Settings 12 and 13 will control when the charger kicks in. It's more like a relay, starts charging when battery gets to setting 12, stops charging when battery gets to setting 13. Float and bulk settings don't apply to utility charge.
See my video on the settings th-cam.com/video/oDiva1SJwpc/w-d-xo.html
Hopefully you'll get a break in the weather soon!
Also check setting 2 and 11 to set how many amps the charger pulls.
@@ReelClearMediaLLC Thank you! for the timely and excellent reply. Subscribed. Apparently, a new series of storms begin tonight ☹️
Hope you don't mind more questions...about pre-charging the inverter capacitors when connecting the battery:
When you connect, did you use a resistor or light bulb to avoid a big spark? If not, did you experience a spark?
@@mikecraig9368 Between the battery and inverter, I have a 120watt dc breaker on the positive cable and a disconnect switch on the negative, so inverter wasn't live when I connected battery. I've seen guys use a big resistor or light bulb on some systems. I don't know if it's necessary with the Growatt, but it can't hurt.
@@ReelClearMediaLLC I think you mean 120amp dc breaker.
Also, I was able to connect the battery without the spark that I've seen with other inverters. Thanks again!
Hello, thanks for creating this video it is very helpful.
I was wondering whats the kw rating of you're battery bank in the video and how
what size array do u recommend for a 10kw battery bank with a 3k growwat inverter?
My battery system has about 7 kwH of usable energy. I'll eventually be replacing it with a larger Lithium Iron battery.
The battery isn't the only thing you have to consider when sizing your array. Average daily use is key. Measuring your daily use is the first step to figuring out your array.
You can also start small and grow your system after you've been using it for a while.
The battery size determines how long you can go with cloudy weather.
That being said, my arrays total about 4.8 kW. In reality, I get 3.3kW peak power mid-day, and 10-15 kWh total energy daily. Location and local weather can change the results.
The Best, I hace one and care My batteries.
So what do you do as far as ground and neutral if you are using the GW completely independent from your house AC? I plan to get a new panel and from it run AC to outlets in my home independent of the existing wiring.
Put in a new ground rod, and bond the ground and neutral in your new breaker box.
bro where is your bms?
The 16S LiFePO4 battery bank I'm planning on building has a voltage range from 2.5 X 16 = 40 volts to 3.65 X 16 = 58.5 volts depending on the state of charge.
Can you please confirm that this particular growatt model can support this? I couldn't find this detail in the specs sheet or the manual.
In the manual...
settings 19 (bulk charging voltage) and 20 (float voltage) are both 48-58.4 volts.
setting 21 (low cutoff voltage) 40-48volts.This shuts down the unit.
setting 12 (switches back to utility source when voltage drops to this level) 44v-51.2v
setting 13 (switches back to battery mode when the voltage rises to this level) 48-58v.
Hope this helps. Again, I only use the Growatt as an inverter... I don't use the solar charger in the Growatt, so I don't have any experience with that.
Read through the comments to see what other owners have said, some are happy with the built-in solar charger, others are not.
@@ReelClearMediaLLC Thank you so much. I too am initially planning on using this as a back ups inverter to deal with outages. Maybe later I'll plan on getting some solar panels.
@@anonymouse2428 I assume you will be charging from the grid. I was giving you settings on the solar charger.
Again, read through the comments, some people were saying the utility charger doesn't go through bulk and float stages, instead it starts charging when the voltage drops to setting 12, and stops charging when it reaches the voltage in setting 13.
@@ReelClearMediaLLC Thank you so much for educating me as I'm new to all this. The seller for the batteries in planning on acquiring, states CC/CV charging at 3.65 volts and 140Amps with no mention of bulk or float. Do I need to use the bulk and float or can I disable them?
m.aliexpress.com/item/4000450780132.html?spm=a2g0n.detail.0.0.62d2lM0llM0lqp&gps-id=storeRecommendH5&scm=1007.18500.139671.0&scm_id=1007.18500.139671.0&scm-url=1007.18500.139671.0&pvid=d6adf856-ec3a-4356-b248-aebd0b8ca1cc&_t=gps-id%3AstoreRecommendH5%2Cscm-url%3A1007.18500.139671.0%2Cpvid%3Ad6adf856-ec3a-4356-b248-aebd0b8ca1cc%2Ctpp_buckets%3A668%230%23177981%239_668%23808%235965%23542_668%23888%233325%2316_668%232846%238114%23726_668%232717%237561%23382_668%233164%239976%23788&browser_id=c9b060b57fe84e08961dd89fc03a9d78&aff_trace_key=0ca0481014814e7381bd6f2237d9cdfe-1582497237401-04372-sWqABqDK&aff_platform=msite&m_page_id=0ojzfjelj2gcazte172f6f64dfb1157359ab21c82e&gclid=&_imgsrc_=ae01.alicdn.com%2Fkf%2FH688b42497ef64b5a851c4b581493c6a2E.jpg_640x640Q90.jpg_.webp
very cool. How much did the entire set up cost you
Less than $10,000 (US dollars).
Great video . Thanks
Cool video man 👍 i have gotta ask bro where did you get that Tesla, Edison shirt, i must purchase one, and i love AC/DC I'm in 🇨🇦 but born In Australia
I think it was on Amazon... not sure. Cool shirt though!
Hi, do you, or can you run a water well pump with high start up power consumption?
It would depend on the startup surge that your pump pulls. I need to eventually run my well on solar backup also. My well pump, like most in the USA, is 240v. When running it pulls 11.3 amps for 2712 watts.
The startup inrush surge is 51.14 amps, so 12,273 watts.
That's just over the limit for two growatt spf-3000s in split phase. So I have two choices:
1. use a bigger low frequency inverter. The Growatt 6000T DVM has a surch rating of 18,000 watts.
2. replace my well pump with one that has a low startup surge.
Hi Steve
Great video
How many batteries can you have in this inverter
The dealer says that you can arrange 12 but I’ve seen similar inverters with more than 20 kwh battery capacity
The number of batteries is decided by the battery manufacturer. The only requirement that I see in the manual is the whole battery pack should have at least 100 amp-hours, and be a 48v system. Growatt also makes a 24v version, but I like 48v... allows for smaller cable sizes.
@@ReelClearMediaLLC I want to use lithium batteries but the manua says that you need a BMS (conected to the inverter) but my batteries have the BMS integrated
How can you set up the batteries?
@@artytecmty What batteries do you have? Is your Growatt the same model as mine (SPF3000TL-LVM48)?
Hi, was just watching the video . Can you give me a long to the bus bars in the battery case?
Sure, www.amazon.com/gp/product/B00MYSS8L4/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
Blue sea makes the plastic covers for them too.
Can this unit charge the Chevy volt batteries? In the video you mentioned you didn't want to change your setup and the victrons gave you more flexibility, but I wasn't sure if you said if it's possible or not. If it is possible what are the down sides of using the growatt to charge vs victron or different charge controllers. Thanks for the video
Technically, the Growatt could charge the volts, but I decided to keep my Victrons. The volt modules are only 12s, and should only be charged to 4.03V/Cell, 48.3V/Module. maximum. My BMS burned up in the lightning storm, and to be safe and get more life from the batteries, I'm charging to 4.0v/cell, 48v/module. When I tried charging with the Growatt the batteries would charge up around 48.3v. So, if I had a BMS on each of the six volt batteries, it would be OK. It makes more sense to me to invest in new batteries (probably LiFePo4) rather than put more money into a BMS for the volts.
Also, I had two arrays already wired into combiner boxes and cables running 160' to the house. I could only run one of those arrays off of the growatt. So the takeaway is, you have to design your solar arrays around the MPPT charger(s0 you want to use.
However, I'm super happy just using the Growatt as an inverter and emergency grid/generator charger.
One more thing... there is an updated firmware with a new charging setting. In setting 5, (the battery type) the new parameter is US2. It is similar to USE but corrects some charging issues. I'm still running old firmware, so can't verify it.
@@ReelClearMediaLLC ok, I'm considering buying the 12kw inverter and I have volt batteries as well. I was hoping I could use it as an all in one so this is very useful information, thank you
@@mosesbear8086 Two things to watch. 1) Solar input to charger needs to be between 60v and 115vdc, maximum 145v. use open-circuit voltage of your panels to calculate.
2) the lowest charge voltage you can set on setting 19(bulk charge) and 20(float charge) is 48v. A BMS is recommended. Also, check the specs for the 12K model and make sure they are the same.
Hey Reel, great video. So i have same inverter. I can't turn off the annoying beep. I change setting 15.. but nothing happens. How did you do it?
th-cam.com/video/V0peZR8AyaU/w-d-xo.html go to 3:20 on the video
@@beefitter that is a "great" advice. I did that at least 20 times and it's not working. That's why I am asking the question here
I just turned off setting 15. You may want to try turning off the inverter (power switch on bottom of unit).
With the unit off turn off turn off both settings 15 and 17. Then turn the unit back on. Let me know.
@@ReelClearMediaLLC I'm having the same issue as @beefitter. I did all the steps you suggest, such as setting 15 and 17, turning the unit off/on, but the beep is still there. Any further suggestions?
@@mikecraig9368 Sorry, I don't know. I've turned mine on and off repeatedly with no problem.
Can you use a generator with this to charge the batteries?
Yes, you use the AC input from the generator. I have a video on the settings (th-cam.com/video/DVVZK3Glr0o/w-d-xo.html&lc=UgxpQp12chwgvb2QDeZ4AaABAg.9HqJvSH2Urv9Hu70-fuBpR&feature=em-comments) and a new video out soon on using it with a generator.
Works really well with a generator. I have a transfer relay that normally supplies power to the inverter from the utility source but if the utility source goes down and the generator is started, it switches to supply power to the inverter from the generator. This allows the inverter to be able to charge the batteries from the generator source during an extended outage if there isn't enough solar. This would allow you to run the generator long enough to top off your batteries, and then shut it off instead of needing to run it 24/7. Major fuel saver then.
How is this inverter holding up?
It runs 24/7 no problem. Sometimes the loads are light (office computers, modems, etc), Many days I charge my EV at Level1 and run window ac units.
HOWdy R-C-M,
48 volt Solar = thanks
COOP
...
Is this unit decent for a large rv/solar battery set up ?
As long as the specs work for you... i.e., 3000watts, 48v battery, PV array 60-115vdc open circuit, etc.
Hello , by watching your video i got convince to upgrade my Go Power and morning star set up , just got it last week and set it up the next day , but what i noticed the ground is OPEN when i checked the output voltage , even i hook up the AC input that is properly wired with Ground from the house still the same " OPEN GROUND " Please advise ...
Thank you for sharing your knowledge ...
Where does the AC out from the Growatt go ? Are you using a separate breaker box?
You need the ground to connect to your house ground, and you need the ground and neutral to be bonded in ONE PLACE for your whole electrical system. There are a few ways to do this, but I need to know how your AC out of the Growatt is hooked up.
Also check the comments from Ben Kanobe on the video linked below. I made a really long explanation of grounding and bonding. I hope to be able to make a video soon, but I've been busy lately.
th-cam.com/video/oDiva1SJwpc/w-d-xo.html&lc=Ugy8kTxTihxbTlPxjxd4AaABAg.9L0kqVC4ReG9L2Mpx41uWN
Yes sir , the Growatt AC output got "No ground ", i hook up a "CO" convenient outlet to the AC growatt output terminal " ground , line , neutral "
The Growatt AC INPUT is supplied from the house breaker with Neutral and Ground bonded together ,I confirmed that ,
The battery is supplying the inverter to provide 120 volts AC and the ground is out, confirmed by using a plug in tester for proper wiring ,
Thank you
@@arminaromin2484 See if your ground meter shows good when in utility mode setting 1.
I will check that ,I will run a dedicated 30 amps AWG10 wire straight to the main breaker panel to supply the AC INPUT of the Growatt unit , i will update you later , Thank you Sir
Growwatt are without doubt the worst inverter currently on the market
Growatt is absolute garbage and their service is worse! I’m off grid and mine went out after 8 months and they wouldn’t ship a new one while I sent the defective one back. It’s 4 weeks since I shipped it in an no word from support. No AC, no refrigerator, nothing. I bought an Outback replacement. My neighbor had 2 go out in 1 year w/ a similar experience with support.
Great vid. I have been looking for this solution. Question. Is there anything like this that is not made in China?
There are inverter manufacturers based in Europe... Magnum, Fronius, SMA, and others. Not sure if they have any all-in-one units with built-in charger and transfer switch. They are great inverters, but more expensive.
Victron has a similar product. The lowest price I've found it for was $1900.
They are based in the Netherlands with manufacturing and Slovenia, India, China, Malaysia, Hungary, Germany, Taiwan and of course the Netherlands, etc.
That would depend largely on where you want to install your system Trevor. Victron makes great products, but if you are looking for an all-in-one for split phase (ie; North America) they do not make one. I could be mistaken, but I believe Sol-Ark is the only one doing all-in-ones for NA. But if you are looking to spend more than the >$1000, many companies around the world put together some very nice pre-wired/pre-assembled units that are essentially plug and play.
Hi, great video. Do you know the idle power consumption of this growatt? How many watts does it consume just being on without eco mode? I plan to use this 24/7 powering the same critical loads as you have.
40-50 watts.
Thanks for the reply. So compared to a standard setup, with just charge controller and inverter, is it still worth it? 50W x 24 hrs is 1200 watt hours everyday just to keep this running. I like the idea of these units but it seems like there is a lot of loss in the system. Is your setup saving you a significant amount off your electric bill?
@@Noah-qt3rq It was not designed to save money on my electric bill, instead it was designed to give me back up power during a power outage. Since I have it already, I use the solar production for charging my chevy volt about 70% of the time, and run my air conditioners at my house. My electric bill is always under $100 / month now. My breakeven would be around 10 years.
@@Noah-qt3rq MY SYSTEM IS DESIGNED TO NOT ONLY SAVE ON MY ELECTRIC BILL. BUT IT WILL ELIMINATE MY ELECTRIC BILL...
Are you still using this Growatt w/ your new EG4 batteries? If so, still happy w/ it? Are you using BMS communications?
Yes, I'm still using it. As an inverter, it works great. It has older firmware, so unfortunately no BMS communication. For on of my two PV arrays, I programmed the Growatt's internal PV charger to the recommended 56v bulk, 54v float.
For the second array, I'm still using one of my Victron Smartchargers. I've got a Growatt 5kES that I haven't had time to try out. I might use the charger in that.I'd have to rewire the array for higher voltage and swap out the breakers.
This looks great. Does it have a CSA or ULc certification to allow use in Canada?
The only certification I see is CE.
You could eliminate about 80% of all of that with a true 48 volt battery arrangement.
I've upgraded to EG4 batteries.
thanks
Thanks for your video!
I own a Growatt SPF3000TL and 48 v. batteries. Not connected to panels. At the moment, I want to use my Growatt as a backup in case of power outage. If I connect to to the AC, do I have to install a 40 amps breaker to feed my Growatt? I planned to plug it on a regular home power outlet (15A). Will my Growatt try to draw 40 amps (max) or is it adjustable by programming?
Thank!
Lol, thanks anyways, I found my answer in another video of yours :) Thanks for your excellent job!
I'm planning to by the Spf 2000 tl hvm.
Hope I can use it without the AC input
I'm not familiar with it, but there's a good chance it will work fine on just battery and solar.
@@ReelClearMediaLLC thanks
Nice layout, and well done video. As one who's been professionally impacted by the growth of the 'foreign' solar industry, I still prefer US made components, but this unit is very tempting. how would you contrast it to, say, an Outback FXR 3048?
I only have first-hand experience with this Growatt, and before that, a CNBou. I would imagine the Outback, as well as European inverters like Magnum would have superior build quality. They also cost twice what the Growatt does.
That being said, I have been using this daily for a few years now with no issues. I've even occasionally pushed it slightly over its 3000w limit and it kept going.
good afternoon, do you perhaps also have had error code 122 , bus voltage too high and know how solved it?
Sorry, I have no idea.
Good video, lots of information. What is the warranty on this ? Does it have Bluetooth ? Will it start a generator ?
Ian on eBay (see my link in description) offers a two year swap out warrantee.
No bluetooth but you can get an optional wifi dongle.
I believe you can use the relay to start certain auto-start generators
Hi Steve. Thank you for the good video. Please can I have your opinion of the Growwatt inverter. Is it a entry level, mid range or top of the range unit. I had 3 sales persons/installers trying to talk me out of buying the Growat. I need a system that works. I don't have to arrive in Rolls Royce style.
Growatt seems like a good midrange. The inverter part has been very good for me. Some people have trouble with the utility charger, It doesn't work like solar charger, so instead of maintaining battery in float, it cycles on and off. Depending on your use, that may not matter. I don't use the utility or solar charger in the Growatt, I just use the inverter, and have been happy with that.
@@ReelClearMediaLLC Thank you very much for your value add. Much appreciated. Take care.
Hi, thanks for your video, just today i installed the 24 v off grid. In the Day time it seemingly worked well, except the fan, which was working all the time, even though today was a cold and rainy day here. I have a question regarding the stand-by mode at night. having no experience it seems to me that every minute, the system tries to start itself, all the indicators blink a few times, then the LCD Display tuns on and the fan runs. After one minute everything goes off, Again after one minute the whole process repeats. it goes non stop. Is this behavior a normal stand-by mode for this machine? I am wondering because there is no fault code indicated in the display, and there is no such situation explained in the manual or on the Trouble Shooting table. I appreciate and value your kind effort and time....
That doesn't seem right... What do you mean exactly by stand-by mode?
@@ReelClearMediaLLC i mean the power saving mode at night, while the inverter was also switched off.
.@@rnanubandha1385 Sorry, I leave mine on all of the time, so I haven't experienced that. Looking in the manual, section 4.4, the unit can still charge batteries even when inverter is turned off. Press one of the display buttons and see if it shows any charging occuring.
@@ReelClearMediaLLC Thanks for your reply, the problem solved,
I've installed a number of these in pairs for 240v. They are great except for the light flicker when motors start up
I haven't got any big motors on mine, the fridge and window ac, but that has a variable speed compressor that ramps up slowly. I've been really happy with mine. I might add a second one for split phase 240 at some point.
@@ReelClearMediaLLC Two in series works well. I think for an average home that it would need four though. Being transformer-less inverters, they don't have the surge capability of a transformer based inverter. Where I live everyone has a well so well pumps need to be added to the mix.
@@mendohomepower7492 What size well pump have you been able to run on two in split phase 240v? My well pump is 1.5hp, 20 amp breaker, but the inrush surge is just over 51 amps for a millisecond.
@@ReelClearMediaLLC One one system there is a 1hp surface pump, on another there is a 1/2hp surface pump and then on another there is a 3/4hp surface pump along with a 1/2hp submersible pump. All of the systems seem to react the same on startup of the pump motors or fridge. The only thing that will cause a reset is something a bit higher on constant draw such as a clothes dryer. I've been looking into slow startup switches that look promising. Much cheaper than going over to slow start pumps such as the Grundfos SQ.
@@mendohomepower7492Thanks. Are those systems split phase, or single phase, and how many inverters?
I'd be ok if there were a flicker, I don't plan on using inverters for the pump on a daily basis, just during grid outages. Trying to decide on another 3000TL, or getting the growatt 6000T DVM, which has a big low freq transformer. Heavy beast to mount though.