Mendo Home Power
Solar Enthusiast
- Joined
- Mar 10, 2021
- Messages
- 149
Currently I am dealing with the not so easy process of shipping back an EG4 8k because of a variety of issues. Since this is a permitted project, I was looking through the certification documentation for the inverter on Sig Solar's website. It appears that they are using the Megarevo certification and model # for their own EG4 label and model #. This is problematic for a few reasons. The first being, when the inspector looks at the side plate and sees the UL1741 listing on the label and then checks it against the CEC approved list of inverters, nothing will show up because EG4 does not have their own certification under their own brand label. This also means that if a person wants to do net metering, the inverter will not be approved because the Utility uses the CEC list to cross reference for approved inverters. Nowhere on the EG4 inverter is there a reference to the Megarevo certification based on model # or any other type of validating identification.
So, if an inspector does what an inspector is supposed to do with the EG4 8k and verify the certification prior to allowing connection to the grid or even firing the system up in an off grid manner, the EG4 8k will fail.
In my past experience in dealing with UL1741 and CA rule 21 products, the manufacturer and the label must match or it's technically a no go. Technically EG4 is not Megarevo, even though it is. So unless EG4 wants to relabel it's inverters with Megarevo nameplates and model numbers these are going to be nothing but trouble in at least, California and Hawaii.
The other part of the equation is that certified inverters must carry a 10 year warranty in order to connect to the grid. It's part of the certification process. You can't connect to the grid with equipment that has only a few year lifespan or warranty. The spec sheet says it has a three year warranty if you don't use EG4 batteries and a five year warranty if you do. Even if you are using the Lifepower 4 batteries that won't interact in lithium mode, only lead acid mode. So I will end this with the title question; Signature Solar's EG4 8k, Will it pass inspection in California and Hawaii?
So, if an inspector does what an inspector is supposed to do with the EG4 8k and verify the certification prior to allowing connection to the grid or even firing the system up in an off grid manner, the EG4 8k will fail.
In my past experience in dealing with UL1741 and CA rule 21 products, the manufacturer and the label must match or it's technically a no go. Technically EG4 is not Megarevo, even though it is. So unless EG4 wants to relabel it's inverters with Megarevo nameplates and model numbers these are going to be nothing but trouble in at least, California and Hawaii.
The other part of the equation is that certified inverters must carry a 10 year warranty in order to connect to the grid. It's part of the certification process. You can't connect to the grid with equipment that has only a few year lifespan or warranty. The spec sheet says it has a three year warranty if you don't use EG4 batteries and a five year warranty if you do. Even if you are using the Lifepower 4 batteries that won't interact in lithium mode, only lead acid mode. So I will end this with the title question; Signature Solar's EG4 8k, Will it pass inspection in California and Hawaii?
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