Best Value Inverter, All-in-one MPPT Solar Charger, Growatt SPF5000ES, Part 1

[@wellwisher541]

This is Growatt you're talking about. They make world class inverters and they are among the top 10 inverter suppliers in the world with less than 2% failure rate. I have been using one of their inverter for over a year now and I have been using the 5000 es model for a couple of months now.

[@mark_osborne]

This is good to know !

[@tourvanvan2145]

Is it safe? How is the ground-neutral bond?

[@firstsat2000]

One string of panels or 2?

[@noanyobiseniss7462]

Those 'warranty void if removed' stickers are illegal, says the FTC. ... “Unless warrantors provide the parts or services for free or receive a waiver from the FTC, such statements generally are prohibited by the Magnuson-Moss Warranty Act, a law that governs consumer product warranties,” the Commission noted Under the 1975 Magnuson-Moss Warranty Act, the Feds mandated that you can open your electronics without voiding the warranty, regardless of what the language of your warranty says

[@SetTheCurve]

With Chinese parts, warranty is always void.

[@FG-vf7pq]

@@SetTheCurve Not necessarily - there are good businesses in China as in the US and elsewhere!!

[@joe7272]

Yes those stickers are illegal. Also, failing to honor warranty due to modification that couldn't have caused the issue is illegal. Meaning if I buy a Dell PC, upgrade the ram, and the psu dies they still have to honor the warranty, regardless of "no modifications" agreements. Actually getting them to honor this law may be a challenge.

[@OtherMike5000]

SCIENCE!

[@OtherMike5000]

@@SetTheCurve 🤣

[@illjohnno]

I own one. Forms a part of my 12X330 wp installation, including 2,4 kwh pylontech lytium battery, functions flawlessly... No, I'm not sponsored, just a satified customer from Romania

[@TheSleepyCraftsman]

FYI...voiding a warranty based on a sticker is actually illegal in the U.S., since 1975. The manufacturer can't hold it against you for opening the case.

[@DavidPozEnergy]

OK, thanks. I didn't know.

[@TheSleepyCraftsman]

@@DavidPozEnergy I too thought the same. Manufacturers have gone out of their way to make everyone think they can void your warranty over a sticker. I'm sure it saves them a ton of $$$.

[@AGhostInTheMachine]

that's good info. do you have a link to more info about that?

[@michaelwagner6877]

This needs to be a top comment.

[@JonOffgrid]

cool that,s good news

[@mannymota3442]

"I don't know what I'm looking at but it looks really cool." Good enough for me.

[@randybobandy9828]

Honest answer.

[@j.allenhood7429]

Hells yeah brother!

[@Skashoon]

Ditto

[@howardkearney7989]

I'm currently building a storage/work shed which I plan to use solar. So I really appreciate your content! For me, very timely.

[@abdulshukkur499]

Tttgg

[@donstringer7422]

I've been using Growatt and love it. So easy to setup and use. Powers my entire off-grid home easily.

[@op8995]

I just got my 3kw 48v modlr today. I can't wait until I get my batteries and get everything situated.

[@dominique___1980]

I'm trying to build an off-grid generator for my RV for when I boondock. (Think Inergy/GoalZero/PointZero but with more capacity.) Will the 24v inverter be sufficient?

[@michaelbouckley4455]

@@op8995 if you have enough solar, this is supposed to work without battery

[@georgemouer4565]

@@michaelbouckley4455 I hope he tests that capability !

[@childofyeshua9006]

A 24V is harder to connect to AC then if you use a 12V, right ? Do these only work with Roof Solars or 2-4 individual stand up ones ? Also, it comes with a battery ? Do you add an additional one like a lithium to make it last longer ? I'm looking at Solar Hybid inverters but nothing's going on my roof........ I've called Electricians, contractors and nobody can answer this ......

Looks like MPP Solar: same parallel connection, same disposition as my PIP-5048MG, same display, same kind of price and characteristics. Good stuff!

[@oleksii.zagorskyi]

I had the same thoughts. It also on sales all around the world with different brands, while actually produced by Voltronicpower

[@bricelarie6527]

Quite the same thing : Sorotec revo series 5.5 kw It's High frequency ... Unfortunately I "break" 2 Sorotec Revo series 5.5 kw : One cause of the max Solar input array ... ( 4000 wpeak ) One cause of an undetected weak wet short-circuit in between both phase ( neutral-phase-earth ) My set up cannot detect it cause when you're running on solar you got no "back point" to mass or "earth" ... Automatic switching between mass "regime" is not a "built in" to these models ... So all the ground "security" systems from usual "grid" were inefficient ... You ought to built up a neutral to ground automatically swichable connection for these that works only with non-connected to ground solar panels . Got a Mpp pip 7048 max ... Running quite good so far with 2 times 7 panels string south oriented on one "side" And one 7 panel string west oriented onto the other .... I would have a 8048 max ... If and only import taxes weren't that kind an help thoses who gather this kind a material which is not produced at all in that "great" ... Union !!! Dare, care, ride safe, clean, have fun ... From France, with .

[@Ayzee5363]

These units are pretty reliable. I have a similar 5kw one that I’ve been using for the last 2 years running non stop with zero issues. It’s not the same brand but has similar settings and display and is build by VoltronicPower.

[@johnfitbyfaithnet]

Thank you for sharing this important information

[@uittyman]

Is it Loud?

[@Ayzee5363]

@@uittyman It does get louder when the cooling fans ramp up but thats only when it needs cleaning.

[@randomnamehererandoname1727]

@@Ayzee5363 How do you clean yours? I didn't realize these could be opened up or cleaned? Or do you just shoot compressed air (not canned) into it? Thanks!

[@Ayzee5363]

@@randomnamehererandoname1727 I clean mine with a blower. The front face can be removed by undoing the side and top screws.

[@philipacovington]

I have SDGE power. I am thinking about a x6 configuration on the GroWatts. I love the rack mount batteries. I wish they'd make a rack mount inverter.

[@OtherMike5000]

COMMENT OF THE YEAR

[@mistersandy]

As long as each component in the system can be replaced, it's cool.

[@boblevey]

I got the Growatt 12000 and am really happy with it. Quite a bit bigger and more expensive but that’s what I needed

[@evlhat]

I have one too I love it!

[@boblevey]

@Joshua Kiser about 4 months

[@boblevey]

@Joshua Kiser about 4 months

[@_a1001]

Same here, and I'll be adding another one. I wish the original 12k could do 250v solar like the new ones.

[@randybobandy9828]

Wow that's awesome! Can you give me a pros and cons? Would love to hear your opinion on it.

[@SuperJamster1]

David! Thank you, I'm as excited as you are to find a great company like signature solar, with reasonable priced products. That inverter/battery system might just be the defining piece of the puzzle for many of us. Thank you, can't wait until your next test video.

[@fullyelectric]

So far amazing.. awaiting next video before buying one .. thank you!

[@techfine-andrewchan5893]

I definitely can meet your requirement of solar inverter in competitive price

[@tourvanvan2145]

Is it the dangerous model that can electrocute you? What's the ground-neutral bond issue?

[@stalwart56k]

Last year I bought the MPP GK5048, a similar product to the Growatt, from our friends in Taiwan at MPP Solar, for around $600 and used a $150 120/240 single phase 3000W transformer from Amazon to run a pair of dehumidifiers in my basement. Trying to use the same transformer to step up from 120 to 240 for the AC input worked but it was very loud. I'm looking forward to getting my pair of MPP LV6548 next week (after waiting a month for them to be cleared by customs) 120v input each, paired for split phase operation. If you buy on Ebay direct from MPP, shipping from Taiwan using DHL arrives much faster. I'm very much looking forward to the review of the Solar Edge Auto transformer. It was something I considered getting, as I'm sure it beats the tar out of what I'm using currently (and may still use for something in the future....)

[@dannybruff]

How long before it pays for itself?

[@johnsavage3762]

Those are inductors and which are an essential component in transformers. They are also toroidal transformers which are used for various advantages.

[@haseebahmad3045]

Hi david .... Yes we are using such all in 1 packages that even have grid feeding capabilities in range of 600$ to 700$ .... Here in Pakistan and these things do work great

[@iffy98]

Share the name

[@toysareforboys1]

The thing I love about it most? You can use it without a battery! :) If you can test it running off your solar without a battery that would be awesome, thanks!

[@majidjan3990]

Hello honey how are you

[@techfine-andrewchan5893]

I can help you

[@whatmust8146]

After much more research i agree with you. I am buying 2 and build my own battery. 10Kw inverter and 15kwh LFP battery and easy enough to add on if i need more capacity as the GW can stack up to 6. For the newbies you can easily run the whole house under 5kw for all the 110V stuffs. For the energy suckers water heater, dryer, stove and AC those requires 220V if all on at the same time 15kw will do but no more than 2 on at the same time then 10kw will do. I know for sure that will work for most if NOT all US household. You can add more solar panel, battery pack and inverter if more capacity is needed easily. I know for sure because for years i have been running the whole house from a repurpose UPS as an inverter and 18650 packs that i built from recycle battery. The 110V stuffs that is. Everything works for years and NO issue. I hung my clothes under the sun to replace the dryer. I changed to solar water heater. I use propane and home made charcoal for cooking and baking. I use the 110V AC . Those will do away the 220V stuffs. Now i need 220V because i have a spouse and women usually are NOT OK with the inconvenience!!!!!!!!!!!! Seriously no one should do grid tie anymore. I never was and never will.

[@DavidPozEnergy]

Sounds like a good plan. Please note: I bought mine from Signature Solar. SS had these modified for the US market by Growatt. Some people who complain about these models bought from Chinese sellers, and the units were not modified. So just be cautious. Also, if you don't mind helping out this channel, please use the affiliate links in the description.

[@frederichoyos678]

Test it under some heavy start loads like your miter saw and split air conditioner/heat pump

[@anywidget]

Yeah...that would be some good tests

[@randybobandy9828]

Good think most new split/mini split AC are inverter based and dont surge.

[@andymendez24]

He just tested it with a 4.1kW load. That's a pretty good test to me

[@kh8655]

@@andymendez24 it's fine for a quick test, but not a realistic usage though

[@brizzx32]

I don't know whole lot about solar but basically he said this inverter is only able to power up a water heater. I don't know but that doesn't sound like a whole lot. Is 5kilowatts alot of power? I mean spending $900 not cheap.

[@ronbinkc4625]

They are Toroid Coils. A toroid is a coil of insulated or enameled wire wound on a donut-shaped form made of powdered iron. A toroid is used as an inductor in electronic circuits, especially at low frequencies where comparatively large inductances are necessary.

[@shahfaisalhayat8690]

its a heavy duty inverter we are using here in pakistan, connected with solars and batteries and running all of the home load without any break. they are offering 5 year warranty. and its quite cheap for US market.

[@curavida5013]

I have 2 of these units in par and 20kwh lifepower4 and 2 pv arrays - 7KW ..... awesome!!!! Bought them from Signature Solar.

[@a2cryss]

9:00 I have seen a lot of failed CapXon capacitors in computer power supplies, motherboards, and monitors. Hopefully those bigger ones are better. I have noticed that the bigger ones in LCD/LED TVs are not the failure point. Thumbs up.

[@KarrasBastomi]

Recapping with better caps would cost more than the unit... LOL...

[@user-vw4cg8cy4f]

You might have not SEEN them, but did you take ESR measurements? I did. These fail just like the smaller ones, but more slowly.

[@cutweldngrind]

I couldn't afford one of these all in ones and had to settle for a MSB 60A controller and a 24v 3k inverter. I used to run 48v but my inverter fried about 3 years ago. Awesome video.

[@gmanweber3776]

Growatt just came out with new batteryless model. Off grid. Looking forward to seeing more reviews on that one. Thanks for your videos david. Also looking forward to the autotransformer video.

[@gmanweber3776]

@Signature SolarYes, I see that but the SPF 3000TL LVM-ES doesn't require transformer correct?

[@gmanweber3776]

@Signature Solar can I use this transformer for any 120v inverter? I have a meanwell inverter

[@ambersmith6517]

@Signature Solar wow batteryless is cool i wander if the adding of the tranny adds the flux amps for starting big motor type loads kinda like low frq inverters

[@onthelake9554]

@Signature Solar Question , What is the grid line in for grid support for the 240 volt only model ? Does this have grid support feature the 3k has ? Thanks !

[@bobschieble5737]

Hi David ,We repair inverters,These Hi Freq units are a problem with certain loads. We prefer inverters that have copper wound output transformers. These handle reactive loads . They also isolate the high voltage dc .I know the cost is higher ,but reliability is much better.One more point,The GROWATT inverter your testing has the same inverter and charge controler circuits we've seen in other inverters,it a universal plug and play uit. By the way ,I just received my GULL 5 KW BATTERIES, THANKS FOR YOUR VIDEO ON THESE ,GOOD JOB!!!

[@DavidPozEnergy]

Thanks for sharing your experience. I've blown up a couple inverters in the past with my miter saw. I'm going to try my miter saw and air compressor on this unit too, but since those are 120v, it will be with the auto transformer.

[@chrisfryer3118]

I've been liking your recent reviews, more appropriate to my stage of solar enthusiasm.

[@Dailymailnewz]

It is better to design your own one, the component inside are not even 70 dollars.

[@meredithbrown8696]

I have a MPP Solar 5kva PIP5048MK unit that looks exactly like the Growatt Unit. Even the instruction book is printed exactly the same. Coincidence? I have been running the MPP Solar for over a year now with no hiccups. We run welders and aircons off it without a problem

[@fisherus]

I saw this Growatt on Signature Solar's website when I was wondering about the GyLL battery after watching your video. So glad to see you reviewing it as I couldn't glean much info about it on their website. Be looking forward for the follow-up video, David!

[@evlhat]

Signature solar actually has a pretty good KZbin channel with a demo of this inverter using the transformer.

[@deanstraker5326]

In China we sold 600usd... but l just want to say, I do really enjoy the testing video, I got a lot from your video.

[@MrCarl312]

Lower cost when everything is combined in one unit. However if any one part fails then you have to replace the whole unit. Or send it in for repair. With separate units, you only have to replace the failed unit.

[@serversurfer6169]

If you have multiple units in parallel - which is comparatively affordable - then you can continue running at partial capacity while you wait for servicing. A pair of 5kW inverters would make a fairly capable and robust system. Three units would be quite a beast. 🤓🤔🤷‍♂️

[@mahannaidu5228]

E hi

[@A2an]

8:08 It seems to be STGWA80H65FB in the output module, if so it is from STMicroelectronics and it is is a IGBT Transistor, not a FET. Thanks for taking the lid of, to show the inside. 👍

[@RS-ms1bz]

The Gyll battery bms will not communicate with the GroWatt. I have both, my GroWatt is 48v 3kw, and purchased the Gyll using David’s coupon code. I talked with Signature Solar and they are in the process of making a new bms that will communicate with the GroWatt. So it’s in the works.

[@wibla2578]

Really cool that they're implementing that communication - should be (fairly) straightforward with RS485

[@theupsideofdownsizing]

Crazy how quickly the market has changed and prices have fallen. I'm looking at my Schneider electric 3200watt inverter. For the price of that thing, I could have gotten 2 of these Growatts with a transformer! Looking forward to your upcoming videos. Hopefully this trend in solar will continue!

[@DavidPozEnergy]

Thanks. You guys are doing great down there. Part 2 is online: kzbin.info/www/bejne/r4i4l6msiMZmgZo

[@1981dasimpson]

i just wish they where rack mount to work with the rack mount batterys

[@iron0xide974]

Hot water heaters are two 120v lines. Which makes the 240v. As the US standard is split phase 120v into your electrical panel. Other countries and higher end equipment can have a single 240v line however not common at all in the USA.

[@josephbrabenderiii2049]

As a few others have said. Really interested in how it performs with the transformer. You have had problems with high frequency inverters before starting induction loads like your miter saw. Also try with a big shop vacuum ad the universal motors are notoriously inefficient. Your transformer might give it enough of a "flywheel effect" to ride through.

[@iztherelife1340]

We’re having issues now. With pass thru power. Fried a transformer. No problems until we added batteries and paralleled two. Now the grid assist isn’t possible. We saw where a grounding issue inside is problem being tied to the neutral. We’re getting an error 8. Frustrating.

[@larrybingham2415]

David, I was glad to view your video about the GR3 battery and the Growatt single phase inverter. I'm planning to use an auto transformer to provide 120-volt 60 Hz utility-type power for use by small appliances during utility outages. The battery-inverter-auto transformer will function as my emergency backup power system to serve my hydronic heating system, refrigerator/freezer, a couple of small desktop space heaters., and our microwave oven.😊

[@georgedrenes8143]

Thanks for doing this great review. I’m still on the fence regarding which inverter, solar charge controller, and panels to get and use with my GYLL 6 pack, so your review is really timely. Anxious to see the upcoming videos where you try the transformer too.

[@DavidPozEnergy]

Your welcome. There are lots of great options on the market.

[@TheOneJacinto]

I have a similar model of this Growatt inverter, and it is great!! I still haven't dared to take off the covers for not to loose guarantee, thanks you to do this for me ;) Now I know what are inside! Great video, David. Regards form Argentina!

[@strottier57]

Can you check the standby consumption with and without search mode on?

[@PeaceChanel]

Thank You for All that you are doing for World Peace and for our Planet... Peace.. Shalom.. Salam.. Paz.. Namaste .. 🙏🏻 😊 🌈 ✌ ☮️ ❤️ 💐 🕊

[@philipmorgan1438]

Very cool video! It inspires me to buy the DIY components for use as a backup solution for my home.👏👍

[@gvmiketodd]

Great stuff, David. Keep up the great work. I've been looking at much more expensive options. I'm anxious for your final video on this unit.

[@gershomg1537]

I'd like to see a comparison (performance, efficiency, costs, etc.) between this inverter and the ones that you have had.

[@johnmarkm.5743]

In addition let me attach a few more questions here to @DavidPoz and hopefully he can handle them collectively: 1. Hopefully if it isn't too much to ask, you could do an efficiency load test across 1kw to 5kw (in 5 steps would especially really like to see efficiency of different motor loads since most manufacturers rate their efficiencies on non-motor simple resistive loads instead of the more dodgy & trocky inductive motor loads) so you don't really get the whole picture. 2. Probably do an idle test no load dc power draw. 3. Probably do a AC charger power draw when charging the batteries. 4. Inform whether it has a power saver function to reduce night battery drain when it senses loads below X number of watts. 5. How quick is the transition from AC to DC and back in the event a power outage occurs (will you notice a startling flicker/stutter of equipment or is it seamless in transition performance?)

[@jptucsonaz8503]

I wonder about if there is Radio Frequency Interference (RFI) from this, as many inverters produce RFI which interferes with Ham, Shortwave, FM radio & sometimes televison reception. I this it would be a good idea to use a shortwave radio to listen for the repetitive "birdies" as you tune through the bands. When you hear one (high noise static), turn off the source (inverter) & see if the RFI goes away. RFI is becoming a huge problem in our homes as wall warts (phone chargers, ac adapters, for Wi-Fi, etc.) don't really pass FCC part 15 requirements & create more & more hash. Also David, when you checked to see if that large gauge wire (4/0 ?) Would fit & it didn't; I think if you remove the plastic sleeve from the case, slip it over the wire then insert it, that it should fit... WARNING, don't push it in & lock it until you're ready to do so, as it will be tough getting it unlocked. They should install cable clamps with heavy duty rubber grommets for strain relief.

[@carlossousa3285]

David, nice videos from you! This inverter seems to be the same as the MPP solar from Taiwan. I have the 4048 MS and has been running 24/7 since June 2017 without a glitch. Interesting to see Growatt put its label on this product. Makes me happy :)

[@healeydave]

In the absence of Part 2 😀 I decided to bite the bullet an try to purchase one of these in the UK. The irony, a decent 5kW 230V inverter and Growatt won't sell me one in the UK, despite there being many sellers in the USA. They say they don't have certification and when I said I didn't care, their response and I quote this verbatim, "We do not offer it into UK market. It is mainly for African countries. For UK Market we only sell premium products."

[@DavidPozEnergy]

Part 2 is here: kzbin.info/www/bejne/r4i4l6msiMZmgZo

[@reflections9409]

Hahahahahaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa. I am African, and I am busy looking for Victron Easysolar, having chosen this over Growatt. The worrying thing for me with Growatt is the number of burn and smoke reports out there. This response you got from them is quite telling though.

[@jjackson3240]

I was looking at their 12k inverter recently. While the price is outstanding there are a couple items that bother me. Their max efficiency is rated at only 88% compared to say your Sunny Islands at 95% plus. Also the idle usage is near 200 watts on the 12k inverter. That seems like a lot. If you can fit it in, please address those specs on your 5kw inverter. Thanks David.

[@DavidPozEnergy]

Thanks for the comment. It's great to hear what people want to see. I'll include this in the next video. I'm especially interested in the idle watts for myself.

[@jstaffordii]

Average Joe is testing the 12kw LF split phase model, it showed 67 watts at idle

[@DavidPozEnergy]

Hi John Stafford II, I watched and enjoyed Average Joes video testing his 12kw LF inverter. You are referring to the "Power Saver" mode. When the inverter was ON, but no load (idle) it drew 161 watts.

[@jimginnyohio]

Nice. I picked up a couple of the 3000 watt Growatt inverters a few months back. Looking forward to seeing your test results!

[@bonniefrench9595]

Did you install them? How are the working, I'm looking at buying 2 SPF 3000TL LVM-24P or 488P to go off grid if I need to.

[@Skylapser]

This is really exciting, regretting buying a Schneider 2524 now for my 24V Gyll batts. Can't wait to see the final installation. Keep up the great work!

[@gettinglucky]

shopping these things right now, check idle consumptions

[@remog38]

Great news David these are available in UK so very relevant thanks

[@mal209]

I would love to see a test of the the parasitic load on the whole unit with and without the invert active- what is the current draw from the batteries when the unit is in standby (switch off, but batteries connected) vs power-saving (power-saving setting enabled, switch on, but no AC load connected) vs inverter on with no load (power-saving setting disabled, switch on, no AC load)?

[@willrobertson826]

70 watts idle load I hope they improve on that in the future.i bought one just for the charge contol I lose a third of my PV input from parasitic loss going back to my trace 5548 and a low consumption charge contoller. Like to find out what growatt charge controller stand alone unit consumes

[@Masteradamant]

dude this is exactly what I've been looking for thank you

[@amoscardoza5253]

That would fit nicely in my jeep. I hope it gets a positive review!

[@good4politics]

Jeep??

[@MN7033]

I understand as per the manual there are priorities can be set for charging the batteries (solar, utility) and priorities can be set for AC output (solar, batteries, utility). Is there any priority can be configured with AC output over charging? In example, if I have 4000w of PV at peak hours and batteries are drained, at the same time I have high consumption of 3500w for households. Will the inverter provide with 3500w from PV and keeps only 500w for charging the batteries? Or charge the batteries with 4000w and provides the household with 500w from PV and 3500w from utility if SUB priority was selected as “Output source priority”

[@jaynewstrom]

Can you test idle consumption in one of the upcoming videos?

[@DavidPozEnergy]

Yes Sir! I plan to test the idle watt draw with, and without, the transformer.

[@bousabousa2377]

I’ve been looking at this inverter as well. It says in the manual that it has a power saving mode. This is mentioned in the screen display section of the manual. It also says in the specs that it has a no load draw of 60w. That is a lot and probably a deal breaker for my scenario. Would be great to see David’s results

[@LordGeva]

I've got mine this week! When it is on, without batteries, connected to the grid, connected to the PV array and the loads disconnected, the clamp meter on the AC-in measures almost 4 amps. What could be the cause? (my grid is 220v and 50Hz)

[@Gebruikersstation]

can't wait for your review part 2!! I feel like I already want to get this thing

[@DavidPozEnergy]

Thanks for watching. It has it's place, but not perfect for every situation. I'm working on editing part 2.

[@videostar555]

@@DavidPozEnergy please mention what the difference is with their older TL models..

[@arleneallen8809]

Nice. Single string up to 400V might be around 13 average panels. If more panels are paralleled then current limit might be a concern, although maybe 16 or so panels is the limit due to the 5Kw limit. With more videos coming I'd also be interested in the AC input testing as well. I assume it frequency and phase syncs to the AC input, if present. If these are then paralleled, let's say 2 units, and one has AC input, then both units should sync with each other and the AC input gong into one of the units. I'm asking because this would be a great solution for a solar car port I'm constructing that is not on my house system. It's standalone and will comprise 36 panels equating to about 10kW. The single appliance connected to the AC out will be a 240V car charger. When not charging the car, I want to fill the batteries. Yes, this will result in power sometimes being thrown away, but I live in California, and the utilities have gotten very negative about more daytime power back feeding to the grid.

[@Keepskatin]

So 10 to 15k, just to charge your car for free🙄❓💲

[@offgridinthepacificnorthwe3210]

I just cant imagine that it could last as long as Magnum inverter/charger or The Midnite classic. Running a well pump on a High frequency inverter sounds like the mosfet would fry pretty fast to me. If I had a weekend cabin then it sounds great but for my full time off grid house? What I have found with solar equipment is you get what you pay for.

[@wim0104]

yeah, these are not industrial units, good for light-duty residential. I wouldn't run an old/Harbinger-o-Fright welder off these either ;-)

[@aspendell209]

Well said my friend. Judging by the components inside I'd say u may get 5 years of light use with it with only resisitive loads and no transformer.

[@dama054]

Can you set time back to grid and time back to inverter

[@t.c.3027]

Thanks DavidPov for this presentation! You have definitely earned a new sub

[@JBK63]

What I find missing in all these inverter reviews and evaluations is no one seems to be technical enough to evaluate the circuitry or the build quality and that’s what this really comes down to. A poor design is going to fail at some point and some of these units seem to be designed far more thoughtfully than others. The components used in the assembly and layout are often overlooked. Measuring voltage, load, waveform etc. is really not getting to the root of these inverters.

[@KarrasBastomi]

And stress test at prolonged duration...

[@sonjamuller399]

We are solar installers in South Africa and only use this Growatt inverter . For there price nothing beats them . U can also run this inverter without battery's

[@martdaymo]

Don't forget to test the standby power consumption!

[@DavidPozEnergy]

Good call. It's on my list so I don't forget next time. I want to see what the idle watts is with, and without the auto transformer.

[@ambersmith6517]

that is what i was going to ask great minds think alike

[@williamquestmagic]

Very interesting product with the All In One package. I like that, I love simplicity and convenience. The price point is superb also. Going to part 2 right away. bill in Florida

[@jpou6942]

Funny, your heater element wasn't even on steel plate in bucket during the test.

[@PatrickKQ4HBD]

It's my understanding that US law prohibits companies from voiding your warranty for opening up the unit, but not from scaring you into not opening up the unit by threatening to void the warranty. I have lost the link to the specific code, but anyone can look it up for their locale.

[@donaldjackson1154]

I have an off grid garage and would like to know how big of a system would be needed to cover 400 watts of led lighting. I use these lights for around 5hrs every day at night. Want a system big enough with solar panels, not sure on how and what’s needed to put this package together.

[@yemberingMali2]

You guys have been wonderful I cannot tell you how much I’ve learned from you (David and all the commentators)I Think I am ready to set up my 1st system however I want all to know that signature solar is not honoring the discount as mentioned I ordered today 12,000 Kw growatt inverter and 48 V lithium battery but they told me “no more discount “ and as far I’m concern they don’t seem to be as friendly as advertised

[@justintrussell7739]

So I'm doing a schooly that I will probably have parked and hooked up to power sometimes. I know that I want to do a 48 volt system for the solar. But I'm really lost when it comes to picking inverters and batteries that will also allow me to draw off a direct power source not just the batteries

[@DavidPozEnergy]

Very cool. I love checking out Schoolies. Send me a message in Facebook @davidpozenergy if you want to chat more. First thing would be deciding if you are going 120v only, or 120/240v. Then decide how many watts you need. 3kw? 6kw? That's the size of the inverter. In this video I'm demonstrating a 5kw inverter. Usually I like to start with an excell sheet of all my appliances, lights, etc. Everything that draws electricity. Then list the watts next to each and add them up.

[@jimfontaine9045]

I'm interested in the efficiency of conversion of the inverter. The external transformer will cost a few watts continuously...possibly 20 watts.

[@DavidPozEnergy]

When I hook up the transformer I plan to check idle watts with, and without, the transformer. When I had my Aims inverter it idled about 66 watts. I love comparing the idle watts. Sometimes it can add up to a lot.

[@tommcdavid9917]

Would you recommend Growatt as a good solid entry level inverter? I'm liking what I been seeing, just overwhelmed at so many selections and mixed reviews. I've never seen a negative video review of the Growatt

[@DavidPozEnergy]

Yes, this model 5000ES is a pretty good starting point if you are making an off grid system.

[@glenngfarley]

Terrific Vid! Looking forward to Part 2

[@GoCoyote]

I would love to see the waveform of the output on an oscilloscope. You would want to use this unit with a center tap 120/240 transformer in order to provide the grounding electrode conductor point of connection to the grounded conductor (Neutral) These inverters are usually designed for international use that are 230V with one conductor being grounded. As our 240V systems are always grounded through the center tapped Neutral conductor, each of the 240 volt conductors are not grounded. BTW, in the old days of hooking up Trace inverters, one always carried a second unit, as the newly installed Trace units might emit a large puff of white smoke when first turned on, and then die a quick death.

[@isovideo7497]

The Growatts from Signature Solar are modified so that neither of the 240V outputs are grounded, as you say. Unfortunately if the Growatt is bought from another supplier, it is possible that the 240V "neutral" IS grounded, thereby causing a grounding hazard. People who purchase Growatts from other than Signature Solar, or purchase second hand, should check that the neutral and ground connections are not bonded together - using a continuity tester or ohm-meter.

[@buckycage4313]

I have also been using the 12kw unit which is about same $/w as this 5kw, great value. The plus and minus is low frequency unit beast weighs about 180lbs. Downside is the 2x internal MPPTs are 150V.

[@buckycage4313]

Oh yah, the big daddy also is a full split phase 240

[@miasam9666]

From which supplier did you buy the inverter? There are loads of them on alibaba

[@Gamez4Breakfast]

Hi, is it possible to use this inverter with a battery and also conected on grid(ac input) but use the grid only when the battery is low and never inject back the power into that grid? because in my country if you inject to much back in the grid the electricity company is outta control and can decide put you to pay for that instead of paying you for the power you produce because you are using their infrastructure to much and the goverment allow them to do so. and i don't want to inject but i want to use power from the grid just in case i run low on battery. thank you

[@mark_osborne]

Nice job on the review David. Looking forward to further testing. Nice unit for sure. My gut tells me it won't handle a lot of in-rush as there is no real "mass" in the transformers. Either way, if they built enough quality into it, it could handle resistance loads and inverter motors for years to come

[@DavidPozEnergy]

Hi Mark, I'm worried about the exact same thing. You know I love to test with my air compressor and miter saw. That will be coming. I don't know if they have as much inrush as your lift?

[@mark_osborne]

@@DavidPozEnergy my lift is horrible ! not sure how those Magnums survived all these years :-)

[@perseon]

@David, I intend to build my own battery. do you know a compatible BMS brand?

[@oliverscorsim]

I really need this but 6000watt and 24v very sure this is a winner for alot of ppl that will actually buy it. And I know you can buy two and get the 6000watts but space.. just one unit like this would be perfect for the overland crowd and im sure the big truck guys would eat this up.

[@KevinGebo]

"I'm really hoping it doesn't just blow up on me... Well we're gonna find out!" 😂

[@Deep.Purple]

They work great ...

[@nickdannunzio7683]

Excellent... FYI... All transformers and motors are inductive loads and will draw the energy they need to operate... most all other loads (like heating elements) are resistive loads... they will draw what is available to try and meet their requirements... fire up that DWH element with 120V... see what your meter reads... A & V... it just wont get as hot... Are you familiar with DIY Solar Power with Will Prowse...???

[@JoeMalovich]

That looks slick, I might need to get myself one of those.

[@jasondevine6014]

Yes you are looking at inductors. High frequency filters. That is a high frequency inverter. Be careful about overloads with these style inverters, but looks pretty well built. Have a look at voltronic forums as I think this may be a version of that. There is some repair info over there.

[@DavidPozEnergy]

Thanks for the help in identifying the parts. I agree about being careful with HF inverters. In some past videos (twice) I blew up all the mosfets inside a HF inverter. But I've never blown a LF inverter. But, hey, that's part of the fun in testing these things.

[@PaulPaid]

They need a default 120v version.

[@buddysteele8220]

Loved the video ant your presentation of it. I'm going to get one of these inverters and build my own small portable system unless you have any changes to the hardware you used. I also watched your 1 year later video so I suspect not, but I wanted to check before spending the money. Thanks

[@DavidPozEnergy]

This inverter is 240V only, I add an auto-transformer for 120/240V split phase. But, if you need more power than 1 inverter, there is another option. If you want 10+kW, then instead of 2 inverters and an auto-transformer, you could look at the EG4 inverter. They are 120V only, but two together will make 120/240V. signaturesolar.com/eg4-6-5k-off-grid-inverter-6500ex-48/?ref=4_rHcgZ9x-TiF-

[@buddysteele8220]

@@DavidPozEnergy Thanks for getting back to me David. You are the only person out of 3 that did. My goal, or desire is to power my camper trailer totally for up to a week of camping without any worries or problems. I want my 12v/120 v fridge to stay running. I want to be able to shower on demand, sit in my recliner and watch TV with a 12v or 110 v fan blowing on me. I want to cook something something to eat when necessary. I want my lights, both 12v and 110 v to work. My camper is total electric because that is what I want. If you can suggest what hardware I will need to accomplish this I will be extremely happy. I am a disabled Veteran so I live in a fixed income and love to go camping / fishing. Again thank you for taking the time to get back with me.

[@magamike1800]

Dam this might be suitable to charge my coming Cyber truck EV.

[@MM-yn9ni]

Buying and early testing is just one part of the decision associated with the purchase of this China-built product. I am seeing questions in above comments relating to Pass Through power management, and also overall Fielded quality levels; how is EG4 collecting customer/installer inputs & applying these to improve the product, and how is Signature Solar managing the overall warranty process so far? Thanks Dave

[@mark_osborne]

I was looking at the 12000 and was surprised to learn it weighs 165 lbs and has 2 large transformers inside, one for each leg of the 120. These things may actually be the real deal !

[@jackinkc767]

so, it has 2 legs and a neutral?

[@bigblockcutlass123]

Did you buy one, I have one. Seems pretty good

[@aspendell209]

David, I'd like to see at least a 500khz oscilloscope on the outputs of that high frequency inverter. It looks like they tried to add a lot of output filtering (the torroidal coils you referenced), but high frequency (true sinewave) inverters are notoriously noisy. This would look like a fuzzy sinewave on a decent scope. This would be fine for running a 240VAC purely resistive load. When you go thru a transformer to center tap the 240VAC at 120VAC, you run into multiple issues. 1) The efficiency of the transformer now affects the total efficiency. That transformer has a massive heat sink on it, so I'm assuming it isn't much over 80% efficient, lowering your total efficiency to closer to 70%. 2) The noise given off by the high frequency inverter will use the transformer to broadcast the high frequency carrier signal by which the sinewave was formed to the surrounding area. You could hear this whine far above 60hz in Growatt's own video with only a 15 watt load. And it will become proportionally louder the more wattage you are using. Try holding an AM radio in that area while under load then turn the inverter off to observe the difference. 3) You are taking a 5KW output and splitting it into 2 separate 2.5 KW outputs. Their specs even say to not exceed 2.5KW per 120VAC leg. Also the difference between the power consumed on each leg creates inductive feedback between the 2 coils in that transformer further decreasing overall efficiency. 4) If there is any noise on the sinewave at all this can greatly shorten the life of electronics and especially inductive loads like motors. It does look like a great deal for sure. But I suspect if you test all the things I have pointed out, you may decide its best suited as a solely 240 VAC resistive load inverter as well. ~cheers

[@DavidPozEnergy]

Thank you for such a great comment. I own two oscilloscopes, but I'm a complete beginner when it comes to using them. I shout for joy if I can just get the sine wave to show up on the screen. LOL. I'll do what I can, but any help will be appreciated. I bought the scopes to try and get into these types of details more, but there is so much competing information. I have watched so many "tutorials" and I now feel more lost on the subject of measuring "noise" on a sine wave.

[@aspendell209]

@@DavidPozEnergy The internal switching frequency used inside the inverter will likely be somewhere between 30k - 100khz. You need at least 5X this resolution to be able to make out the noise spikes overlayed on the sinewave. then expand the signal so that 1 full 360 degrees of a single sinewave fills the horizontal width of your screen. Then expand the amplitude so that the sinewave touches the top and bottom of the screen almost.

[@jonason321]

That looks so similar to the design of an MPP solar, I wonder if they have the same original design company.

[@DavidPozEnergy]

They probably share a ton of parts.

[@AGhostInTheMachine]

Yeah, I think the root manufacturer is Axpert.

[@jschaeke]

Indeed I recognize exactly the same components in it as my EAsun (which I bought on AliExpress). Also the manual is very similar. I use solar-sis to read out the the data, and this works also with many brands (so they share also a very similar firmware implementation). The data is put in an influx database and visualize with Grafana dashboards with graphs, gauges etc.

[@DanBurgaud]

Questions: 1. Can I use this inverter, with the AC Input be completely isolated from the AC Output? 2. And then use the AC Input to charge battery if need be? 3. Is there some form of scheduling for the AC charging: AC charge when battery < 50v between 10PM to 4AM?

[@DavidPozEnergy]

1. No, there is a direct connection between AC input and output when in pass-through mode 2. The AC input can charge the battery, but it will also be directly connected to the output at the same time 3. I don't know if there is a timer function, I don't think so, but not sure. To be clear, I only use my inverters in my off grid setup. i don't have anything connected to the AC INPUT side.

[@alexburke5289]

The truth is, this was on alibaba for years now and was always the same price. And there are many good ones there as well, just no one wants to review any.

[@t.c.3027]

Hummm, I'm 🤔why?? I was thinking the same, this is the 1st time I've even been introduced to this model! Need to check with Will also on this! This guy has acquired a new sub with me!!

[@garystewart6093]

If I was sent a free one, I would shill it with the same enthusiasm as he does

[@mpirron1]

check out all the MPPSolar vids, that's where you will see many installs, the Taiwanese came up with these "hybrid" high frequency inverters, all others are OEM'd or copied, various build qualities, and options, but all them the same, a bunch of MOSFETs. Not UL Certified, Not NEC Compliant, absolutely not IEEE 1547 compliant. Won't pass inspection for occupancy permit, no licenced master electrician is gonna touch it, it won't be allowed grid interconnection, doing so is potentially felonious, Electrical Provider will not authorize netmetering for excess generation buyback.Finally, connection to the grid is very likely to create suspicious enough consumption patterns at the meter to trigger a fraud investigation you really don't want so be very careful. That being said I hypothetically would absolutely love mine if I had one.

[@INoahGuy92]

I wonder if you could swap those fans with PC fans like Noctua or BeQuiet to reduce noise.

[@erasertech9785]

Looks like a copy of the Mpp solar inverters out of Taiwan,Which we have been off-grid with for the last 6 years.

[@iviaverick52]

so could I run an AC line into this, then put a subpanel on the AC output for a few key circuits? (i.e. fridge, oil boiler, office computers, etc). Sounds like in theory those circuits should only pull power from the grid if the solar cannot keep up with charging the connected battery, correct?

[@mjdominique17]

I'm waiting for the part 2

[@TheWickerShireProject]

Any Issues from the inverter with max capacity or charging? Anything you don't like about it? Lugs, grounding, display, menu's?

[@DavidPozEnergy]

I overload it in the part 2 video about this inverter. It ran at 110% before shutting down, so I was pretty happy with that. Some people don't like the display, but I'm happy they have one. Some inverters don't have displays or you have to buy it separate. My biggest gripe is the fans are loud. I film in my garage and have to shut the inverters off while filming. Otherwise, it does exactly what it says it should do.

[@mpirron1]

Build looks very similar to MPPSolar and their mainland counterparts. They are what they are but to compare them to victron is like comparing a low end Volkswagen to an High end Audi. Both should get you where you want to go though. It's not going to be approved for grid connection either, so your excess power is wasted (nobody really cares about the grid anyway)

[@margarita8442]

Im very happy with mine --- off grid 2kw panels - 48v system 100ah lead batteries-- is a head ache setting all the menu;s up

[@AdministrativeReload]

Just know that a matched split phase transformer is going to cost you about $300 more. It's still a decent price, but not as much of a "great value" when you figure that into the cost.

[@danfarrington1659]

Loved the video. Will this unit power a 220v dryer and a 220v cook induction range?

[@DavidPozEnergy]

I've used it to power my 240V electric dryer. I've also used it to power my electric stove, but it's an older resistance stove, not induction, so I can't answer your question perfectly. Also, I'm running two in parallel since I want to be able to turn on more than one thing at a time.