Thoughts on if theres room to install a din rail and a Tigo RSS transmitter inside the flexboss for a rooftop installation? Also, i see the manual recommends a PV disconnect but whats that knob on the side then? Would you recommend an external disconnect?

###WARNING### If you were contacted to update the grid connection anti rotation brackets on the GridBoss. You may have received torque specs that were WAY too high for the plastic standoffs holding the fuses. The instructions I received specified tightening the screws to 250in/lbs. They should be 80in/lbs according to the EG4 tech I talked to. The spec for the Eaton breaker is only 40 in/lbs so 80 may still be a little high so I am going to use around 60 in/lbs. I checked several of the similar screws and standoffs and none were anywhere near 80 in/lbs.

Consider this panel rack. kzbin.info/www/bejne/sKPZl5KmpsqBfpIsi=t3JWl9dX6-nEmQg4

Can it be mounted inside? Is there a remote disconnect button that goes outside?

If I understood the smartports correctly you could use one of those ports to hook up a 110V generator, correct? I'm looking to just hook up a portable generator in case there is an extended power outage and my solar is not sufficient. not a whole house generator, just a supplement to solar. this way I can avoid having to buy the chargeverter hopefully

why make a video but cant supply any real life data you gave us no more information than if i just went to signature solar website

MAN THIS THING IS A MONSTER,

I am in Mesa, AZ. I installed the Sol-Ark 15K w/60KW EG4 and 9KW of solar panels. I need more solar panels, which I am in the process of procuring. I spoke with EG4 and Sol-Ark about the close-loop communication with the battery. Sol-Ark stated that the EG4 communication (CAN buss) works, until it doesn't, so they stated that if I have a problem and they see that I have the EG4 batteries in close-loop communication, they will void the warrenty. Hmmm.. well my contractor along with the large utility company (Salt River Project (SRP)) designed and installed my batteries using close-loop communication. It has been a year and I have had no problems. I will say that I have a heat pump A/C for my garage so as to keep the summer temperature at or below 90 degrees F. (usually 84F) I decide to not remove the close-loop communication... I was tempted to trade in my Sol-Ark for the EG4 18K for $1000, but I found that the EG4 inverter does not handle my Time Of Use needs, or at least it is not easily configured if it even possible. So I will stay with the Sol-Ark.

I’m not happy with mine . Before 3 years it had apparently a minimal leak replaced it had to pay labour, they had to come back several times because the sensor got damp when installing it so it would keep shutting down. Now with the second tank it shut down again and could not be started again. This time they canceled the sensor there is no leak so I question. If there was even a leak with the first one. I think I should be refunded the labour for the second tank. The plumber did mention they’ve installed lots of them in a new apartment complex and have already replaced many. So maybe put off purchasing one until the kinks have been worked out.

Will this run my 27kw tankless water heater? It draws 113 amps when in use.

you said that you would have installed a transfer switch, with that in mind does that mean that you would not have needed the grid disconnect switch above the transfer switch in your drawing ??

It looks like the settings for the INVERTERS would be full time export, any time of use settings would be in the gridboss itself

Loving your videos and looking forward to your next video showing the install. I saw the gridboss come on the market but didn’t understand what it did. I’m a contractor builder with some wiring experience but get frustrated with a lot of the content out there which assumes you know solar and or just isn’t explained clearly. I want a similar set up with grid back up, no sell back, and also want a way to regulate my hot tub and pool pump (at night, low sun, or grid down) so they won’t drain my batteries quickly since these are my biggest loads. I could also be cooling my well insulated house when hot out and the solar is cranking, not to mention a future EV hook up. The gridboss looks perfect for this and should ultimately allow for a system that requires less battery storage especially being that I’m in a sunny area. Thanks again for a great video. I’m excited about this set up!!

The manual states that it's not to be installed on a flammable material. Is the wood wall a problem?

Thanks for the review. I am curious if the application can work only using wifi, i.e., no internet connection. In a regional grid down scenario, this would be a concern since there is no longer a display. I am looking forward to your schematic, especially since your prior video discussed placing an inverter bypass switch in place for system maintenance. I believe this would perform that function.

You mentioned only use copper and confirmed in the manual. My 200 amp feed wire is 4/0 triplex (aluminum). If I add the Eaton breaker, aluminum should be fine as the breaker is aluminum rated. Definitely can save money by keeping the aluminum instead of buying 50’ of copper.

OK so I took a look at the GridBoss manual and it is conflicting on the temperature. In the specs section it specifies a maximum ambient operating temp of 140 degrees F. But then it adds that lower maximum temp in the written section. I hope this is a typo because if it isnt you would NEVER be able to install one of these in Florida next to your meter if there is any time of the day with sunlight. I guess I will call EG4 monday to confirm as this will cause a complete re-engineering of my system.

Very nice setup. Very clean

Everyone talking about what it can do not one person has connected it so far. How do you know it can do what you are saying?

Those tariff are going to priceout all Chinese products... get it while is hot.

SPECULATION (Correct me if this is wrong): In a completely OFF GRID system, I would think that the LOAD L1 & L2 would suffice, since you are never backfeeding the inverters from the Grid. Power is only sent to the Grid Boss from the Inverters. Having said that, if you had multiple inverters in parallel, it would seem you could supply the output from each system to the Grid Boss, without having to compensate for Phase, and the Grid Boss would balance usage from all sources. So if you had 2 18kPVs in parallel, couldn’t you take the output into one port on the GRID BOSS from that entire system, and then if you add two 21kPV in parallel use a second port, leaving the 3rd port for future expansion?

I started installing my Flexboss and Gridboss today. When setting up the Flexboss, the manual states you have to enable the MIDBOX setting under advanced settings , or Gridboss will not turn on. (and it didn't) In the App and the EG4 Monitor website, the MIDBOX tab isn't there even after the firmware update. Also, Signature Solar tech support looked at my setup/system and is at a loss on what to do. I got the Flexboss wired and powered up, but the Gridboss is not playing nice..... Was told I need to wait until Monday for the really smart EG4 guys to come to work. 😢

Did you say 113? Spec says operating temperature is 140F

So they finally caught up to others like Schneider who have had these type of units for quite a while.

Thank you

Thank you

Needs labels on the Smart Ports telling you the AMPS!

I’ve been waiting for an actual install video of the gridboss. Glad you’re the first one I enjoy your content.

I’ve been waiting for an actual install video of the gridboss. Glad you’re the first one I enjoy your content.

Thanks for the post, looking forward to more content.. Say I have the 12000xp off grid, can I just wire it into the generator input of the gridboss, and have it run the loads with grid present at the grid boss, what is the transfer speed between grid and generator input and back to grid, can I choose to stay on generator power?

One disadvantage to this over using a couple 10 circuit manual transfer switches is if there is an EMP and the smart circuits fail, will you be able to power your loads? Will you be able to access the Gridboss? With the manual transfer switch there are no smarts to go out. Is this EMP hardened? I don't think EG4 has made that announcement that I've heard on this or the FlexBoss but I suspect the FlexBoss will be. Since the grid port on the inverter is bidirectional can you use that one line to pull energy from the grid to charge the batteries with it? Great job mentioning the idle 20w it uses, that is important and I didn't know that after reading the manual! It also appears it's less efficient than the 18kPV with solar to the battery or solar to the grid. Also - I love your videos. You and I think similarly so that may be why but IMO you do a good job laying out what matters and keeping it clear and concise.

Hey good morning can you please send me the wire wiring diagram for the grid boss please? Thank you.

The unit is very new and hasn’t proven itself yet. It better to see it up and running with hours to prove it worth buying. Just like anything new with all modifications and needs to run for a while to get all the bugs fixed

Another great review. Thanks for all the information. I was going to do the 18Kpv, but now I'm going to install the BOSSes. My Grid and Flex are going to be separated quite a bit. The batteries will be near the Flex. I understand there's only one cable that needs to go between the Flex and Grid. Will you cover that in your review of the combo setup?

It depends it pulls heat from your house, if you are heating with expensive electricity, it’s a wash because your electric heat is just working harder to heat your water heater, if you are like me and you heat with wood, it makes complete sense

Good stuff, looking forward to seeing how you wire up your system into the gridboss.. I had some concerns where my existing grid sell back meter would go as i also have my main meter.

What type and size of wire gutter is that? Great videos by the way!

Awesome. If you were to add a "Bypass" switch ,for maintenance work, where do you think you would place that? I think usually people put that where your fusible disconnect is.

I just received my FlexBOSS 21 yesterday and the GridBOSS the day before. I'll be mounting them soon inside my big shop as well as the 40 410 watt panels. Hooking them up to 3 battery (300 amp hour) banks for a total of 900 amp hours! I'll add a 4th soon. I'll also hook up the 15 Kilowatt generator I have. Also, will be hooking up the new style chargeverter GC when needed.I love this stuff! ;-) Keep rockin' down there in Texas... maybe I'll join you some day! 🤓

Doing away with green subsidies is the goal, but stop subsidizing gas and oil as well. Google it- we have subsidized gas, oil, and coal to the tune of trillions over the last hundred years.

Thank you for this review and for taking the time to break down the 200A pass-through.

Great video, I'm encouraged by EG4's progress in the space. Cheaper than my Sol-Ark 15ks and seems to do everything I need. I'll be switching to EG4 in the future for all of my off-grid builds

This is not the biggest hybrid inverter on the market we have high voltage dc inverters 3phase 400v 50kw deye. It can take up to 100kw of solar and use 80kw of solar.

Do u have to have the same PV? Right now, I have 2 separate systems: 1 10kw 6kw. If I upgrade, can I use my solar panels.. I have 20 550 n 22 320 watts

I agree the Flexboss seems like a good alternative to the 18kPV. It will be nice once they add a screen option, I prefer having a screen backup along w/ the app. It is curious that the MPPT efficiency from PV to battery and PV to grid is less efficient than the 18kPV though?

Added as a sub so I can hear your take on the GridBoss. Looking at the EG4 site online that unit looks to be PERFECT for a hybrid setup that tries to be mostly off grid. As you might guess from my user name, I have to plan for a little bit more wintery weather than you and @WillProwse do, so being able to add more panels is ALWAYS a good thing!

Good tech overview. I don't agree with the commentary on eliminating tax credits for buyers of this tech. We cannot rely on corporations to "do the right thing" and keep prices low out of the goodness of their hearts. I would never expect that. I want them to live within the competetive market and succeed as any good capitalist would. I'm happy I took the incentive for my system, it was a factor in my decision. I bet most of the influencers here , including the @unpluggedtexan, have taken the tax credits. Let's not pull the ladder up on those folks that are just getting in to the enegy independance movement! P.S. Big Oil lobbies hard for removing the tax credits. Big oil gets huge gov't tax credits, but they don't want to lose us as customers.

Legit as they come!!

I don’t sell back to the grid, does it have sine wave matching from the grid so it will bleed power in as needed to supplement power supply if needed.

I have the PowerPro battery installed. Flexboss going up later today along the Gridboss. I've hired an Electrician to wire the grid and breaker panels but I'm wiring the battery to Flexboss and Flexboss to Gridboss.. Love to see some install videos as this is my first installation of this type.