Gotta love AC coupling it wastes nothing until the battery is full and the load is lower than the production so a dump load to say hot water production is a great way to use the last bit of power produced on those sunny days
@@WattsMiner Hello sir, I have a big doubt regarding the installation of the AC coupling. I have two cases: 1) the house has a Solaregde "only solar" system prior to the installation of the eg418Kpv + 2 Batteries kit. But the layout showed the pre-existing system connection in the backup subpanel. Does that work fine or should the AC outlet of the disconnet be connected to the generator port? 2) It is similar to the previous one but the previous solar system is ENPHASE. I have been reading but I have gotten little information, some parameters must be changed in the EG418Kpv configuration. But it doesn't seem to work well and I think I'm skipping some step or EG4 isn't allowing me to save the changes. I appreciate your kind response.
Howdy Phil. Saw your comment on my channel about the experiments you are doing with off-grid and EV batteries, etc., and would really LOVE to pick your brain at some point. I think from your icon you may be in the Finger Lakes as well? Hey... lets connect!
I am in PA, but my wife and I really enjoy visiting the Finger Lakes and visit often. I would absolutely love to assist you with anything Offgrid or Battery/ESS related topics! Been following you for a while and really appreciate the teaching and insights you provide. 👍 Bedrockoutdoor@gmail.com give me a shout.
what's the maximum amperage that the GEN (AC coupling) can use? Right now I'm assuming that this is another way of connecting the solar panels to micro-inverters that convert the DC to AC close to the panels instead of having a super high voltage DC string coming down to the main inverter? So for AC I bet the amperage has to be higher than a direct DC string no? Is this controlled by the micro-inverter or the main inverter? Also, which micro-inverters did you use?
This inverter has 3 MPPT inputs strait DC strings up to 600v. The gen port I'm using for ac coupling to gain extra power (up to 19.2kw) coming from an existing solar edge system using solar edge products the customer had previously installed. Instead of directly exporting power the system can use the old solar gt system as an extra input.
@@WattsMiner Got it. That's your fuse between meter and inverter. Also, do you have a tap in the fused disconnect that lets you go to both inverter and bypass?
So I have two panels. One is in my garage and the other is in the basement. Both are 200 amp, of course. What I want to do is tie/tee both of these into one box, put a 200 amp breaker and then run it through the inverter. Does that make sense? I average 55KW daily.
High frequency inverters might make sense for short term AC coupled applications, but because of their relatively low surge capacity, I would not recommend a high frequency for true off grid applications. Low frequency, transformer based inverter chargers are far better suited for both off grid and AC coupled applications.
Except, LF inverters are definitely power hungry hogs in comparison. Also this customer just wanted to run less than 50 amps backup. Mostly resistant loads so hecwill be just fine.
Gotta love AC coupling it wastes nothing until the battery is full and the load is lower than the production so a dump load to say hot water production is a great way to use the last bit of power produced on those sunny days
Totally agreed or crypto miners
@@WattsMiner Hello sir, I have a big doubt regarding the installation of the AC coupling. I have two cases: 1) the house has a Solaregde "only solar" system prior to the installation of the eg418Kpv + 2 Batteries kit. But the layout showed the pre-existing system connection in the backup subpanel. Does that work fine or should the AC outlet of the disconnet be connected to the generator port?
2) It is similar to the previous one but the previous solar system is ENPHASE. I have been reading but I have gotten little information, some parameters must be changed in the EG418Kpv configuration. But it doesn't seem to work well and I think I'm skipping some step or EG4 isn't allowing me to save the changes. I appreciate your kind response.
Howdy Phil. Saw your comment on my channel about the experiments you are doing with off-grid and EV batteries, etc., and would really LOVE to pick your brain at some point. I think from your icon you may be in the Finger Lakes as well? Hey... lets connect!
I am in PA, but my wife and I really enjoy visiting the Finger Lakes and visit often. I would absolutely love to assist you with anything Offgrid or Battery/ESS related topics! Been following you for a while and really appreciate the teaching and insights you provide. 👍
Bedrockoutdoor@gmail.com give me a shout.
what's the maximum amperage that the GEN (AC coupling) can use? Right now I'm assuming that this is another way of connecting the solar panels to micro-inverters that convert the DC to AC close to the panels instead of having a super high voltage DC string coming down to the main inverter? So for AC I bet the amperage has to be higher than a direct DC string no? Is this controlled by the micro-inverter or the main inverter? Also, which micro-inverters did you use?
This inverter has 3 MPPT inputs strait DC strings up to 600v. The gen port I'm using for ac coupling to gain extra power (up to 19.2kw) coming from an existing solar edge system using solar edge products the customer had previously installed. Instead of directly exporting power the system can use the old solar gt system as an extra input.
You’re so fancy!! 👏🏾👏🏾👏🏾
What size cable are you using from the old inverters to the gen port?
Its 2224
2/0 my bad
Looks good.
The disconnect is so you can run the old grid tied system off the 18kpv without back feeding into the grid if happens to be down?
Or did you use the manual transfer switch to keep it from back feeding into the grid if it was down?
The disconnect is safety inline for service. The hot side is coupled on the top side of bypass.
So cool!
why do you need a separate transfer switch given that the EG4 18k has a 200 amp transfer switch built in?
So you can service the system and still have power as an option 👍
That's a great design idea. I love having options like that.
I’d like to know more about your battery
I custom built it...
How did U enable ac coupling? I have 10kw enphase fed into gen port. Enphase not turning on. Why?
I'm using the new inverter as the ats and gateway controlling everything
You should check all your settings, also you can check with tech support
Why the AC disconnect and the new bypass? Couldn't you use the bypass on the outside?
Fused Disconnect is required outside line of site from meter, bypass is just for system maintenance
Both inverter and bypass are energized after the fused disconnect.
@@WattsMiner Got it. That's your fuse between meter and inverter. Also, do you have a tap in the fused disconnect that lets you go to both inverter and bypass?
Yes, 3 way 200amp polaris lugs after fuse
Is it possible to utilize a 320 Amp service through the inverter?
This unit only has 200a pass through, you could parallel two units together
So I have two panels. One is in my garage and the other is in the basement. Both are 200 amp, of course. What I want to do is tie/tee both of these into one box, put a 200 amp breaker and then run it through the inverter. Does that make sense? I average 55KW daily.
@@PaulKlein-q4j484 571 9645
@user-pz3ym8le4x if your only using 55kw daily.... you only need a 50-100a service... that is small usage
High frequency inverters might make sense for short term AC coupled applications, but because of their relatively low surge capacity, I would not recommend a high frequency for true off grid applications. Low frequency, transformer based inverter chargers are far better suited for both off grid and AC coupled applications.
Except, LF inverters are definitely power hungry hogs in comparison. Also this customer just wanted to run less than 50 amps backup. Mostly resistant loads so hecwill be just fine.