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  • arf88
    replied
    I will have to do that, their engineer is actually going to talk to solar edge but I'm afraid all this is not being translated properly. I did specifically mention the issue with the breakers being in the main panel, he didn't think it would be an issue b/c the inverter will Sync to Edison and did not think it would sync to the Generator which is 60Hz and i don't believe you can change this. I assume Edision comes in at 60Hz as well?

    Here is the datasheet for the generator.

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  • Markyrocks69
    replied
    Originally posted by arf88

    Moving the breakers out will void the warranty from the solar installers. Not an ideal option.
    Then call them and have them do this portion of the work. They may let someone else do it but they might want to take a look at it after the fact. Call them and see what they say.... report back.

    I will say if I was a solar company and something broke bc you had a generator and inverter that weren't isolated from each other I'd definitely be saying it broke bc of that.

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  • arf88
    replied
    Originally posted by Markyrocks69
    As was said it's as simple as removing the solar breakers and doing a tap b4 the ATS.

    basically this in a nutshell

    Moving the breakers out will void the warranty from the solar installers. Not an ideal option.

    Leave a comment:


  • arf88
    replied
    Originally posted by Mike90250
    Well, since it looks like you have a simple grid tie inverter, after the $600 , 200A Transfer switch is installed, the easiest way is to set the generator to 61Hz That way the solar will never be able to qualify it and life should be good.
    Or it can be accomplished with a pair of transfer switches.

    That's why planning ahead is critical, building up stuff piecemeal gets expensive fast.

    But realize there will be a 30 second to 2 minute blackout while the generator starts up and prepares to take the load
    My understanding and correct me if I'm wrong is that the inverter will not sync to the Generator signal if it doesn't match Edision. I don't know if you can set the phase and generator frequency however and how that would impact the non solar portion of the house.

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  • arf88
    replied
    Originally posted by ButchDeal

    the solution is VERY simple. TAP the inverter into the lines on the grid side of the ATS. it is what is commonly called a line side tap. Do this instead of connecting the inverter to a breaker on the MSP.
    This would void the warranty from the Solar installer who installed the equipment originally. I have a 20yr warranty with them, not willing to risk this.

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  • arf88
    replied
    Originally posted by ziomeks
    I'm no genius at this as I too am a neubie, but the description you give makes this an impossible situation. The ATS has to select either Generator OR GRID / Solar to feed the breaker panel. With the solar system fused into the main breaker panel, I see only trouble on the horizon. It seems that this change over would be better served by a manual process on power fail.
    The manual process is what I'm trying to avoid but agree this is the issue i see.

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  • wanabee solar
    replied
    Originally posted by arf88
    Believe me it does not sound complicated but it is and the installer has a valid question and concern no one is addressing.

    Edison power goes out > Inverter shuts off

    Now we introduce an ATS and Generator.

    Edison power goes out > ATS kicks over Generator supplies power to the Main panel. The Main Panel has 30A Solar breakers which I assume once the Generator is powering up the entire Main Panel the Solar Inverter also powers up b/c of those breakers in the main panel? Do you see the dilemma here? If the inverter only turns on when Edison power is on that is fine but if the inverter is getting power through the main panel and the Generator is connected to the main panel does this not cause the Sync issue and problem described above?

    The inverter is feed true a separate contactor to the main panel that switch together with the grid contactor from the ATS.
    The inverter is only up when the grid contactor of the ATS is on.

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  • Markyrocks69
    replied
    As was said it's as simple as removing the solar breakers and doing a tap b4 the ATS.

    basically this in a nutshell


    Attached Files

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  • Mike90250
    replied
    Well, since it looks like you have a simple grid tie inverter, after the $600 , 200A Transfer switch is installed, the easiest way is to set the generator to 61Hz That way the solar will never be able to qualify it and life should be good.
    Or it can be accomplished with a pair of transfer switches.

    That's why planning ahead is critical, building up stuff piecemeal gets expensive fast.

    But realize there will be a 30 second to 2 minute blackout while the generator starts up and prepares to take the load

    Leave a comment:


  • ButchDeal
    replied
    Originally posted by arf88
    Believe me it does not sound complicated but it is and the installer has a valid question and concern no one is addressing.

    Edison power goes out > Inverter shuts off

    Now we introduce an ATS and Generator.

    Edison power goes out > ATS kicks over Generator supplies power to the Main panel. The Main Panel has 30A Solar breakers which I assume once the Generator is powering up the entire Main Panel the Solar Inverter also powers up b/c of those breakers in the main panel? Do you see the dilemma here? If the inverter only turns on when Edison power is on that is fine but if the inverter is getting power through the main panel and the Generator is connected to the main panel does this not cause the Sync issue and problem described above?
    It is REALLY simple. move the solar from the breaker on the MSP to a Line Side Tap, that is installed on the grid side of the ATS. Then what happens is

    Power goes out
    Inverter shut downs
    ATS cuts off grid and inverter from MSP

    Leave a comment:


  • ButchDeal
    replied
    Originally posted by ziomeks
    I'm no genius at this as I too am a neubie, but the description you give makes this an impossible situation. The ATS has to select either Generator OR GRID / Solar to feed the breaker panel. With the solar system fused into the main breaker panel, I see only trouble on the horizon. It seems that this change over would be better served by a manual process on power fail.
    the solution is VERY simple. TAP the inverter into the lines on the grid side of the ATS. it is what is commonly called a line side tap. Do this instead of connecting the inverter to a breaker on the MSP.

    Leave a comment:


  • ziomeks
    replied
    I'm no genius at this as I too am a neubie, but the description you give makes this an impossible situation. The ATS has to select either Generator OR GRID / Solar to feed the breaker panel. With the solar system fused into the main breaker panel, I see only trouble on the horizon. It seems that this change over would be better served by a manual process on power fail.

    Leave a comment:


  • arf88
    replied
    Believe me it does not sound complicated but it is and the installer has a valid question and concern no one is addressing.

    Edison power goes out > Inverter shuts off

    Now we introduce an ATS and Generator.

    Edison power goes out > ATS kicks over Generator supplies power to the Main panel. The Main Panel has 30A Solar breakers which I assume once the Generator is powering up the entire Main Panel the Solar Inverter also powers up b/c of those breakers in the main panel? Do you see the dilemma here? If the inverter only turns on when Edison power is on that is fine but if the inverter is getting power through the main panel and the Generator is connected to the main panel does this not cause the Sync issue and problem described above?


    Leave a comment:


  • Markyrocks69
    replied
    I wouldn't want to risk the generator and the inverter bumping heads in the electrical system. Its alot of money to be messing around with.

    This is not that complicated. The ATS isolates the grid from the generator..... hook the inverter up to the grid side b4 the ATS so it isolates the grid AND the inverter from the generator.

    You can also use some kinda relay that is normally closed but will open if it senses power from the generator feed circuit.
    Last edited by Markyrocks69; 07-30-2019, 12:27 AM.

    Leave a comment:


  • arf88
    replied
    Spoke to the installer, and his concern was when the generator is running it is obviously supplying power to the main panel which has the Invterter Solar breakers. Is this going to cause a problem with the solar producing power and trying to pump it to the grid?

    Leave a comment:

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