TheFlumph
New Member
My utility is well known for really disliking net metering. Several installers in the area have told me they make it difficult on purpose.
Anyway they have put my project on hold.
The second paragraph is easy for me to refute. The inverter is UL1741SA compliant. I don’t need an auto transfer switch.
And I don’t plan on using a generator. I’m using the EG418kpv inverter.
The first paragraph here makes no sense to me. They want me to buy another inverter?? The first one was expensive enough. Can anyone with experience help me to respond here?
Email follows. “
We have two main issues that we are trying to resolve with the way the inverter manufacturer has your system designed.
First, VT PUC Rule 5.500 requires us to record production of your solar array separately. This requires a separate production meter from your exiting usage meter. We are currently working with another installer who is using a different inverter manufacturer with a similar setup and their solution is to install separate inverter(s) for the solar array and install the production meter between those and the main inverter. We would like to see the drawing below modified to show that setup before WEC can move forward.
Second, we need to have the exact model number for the 18kPV inverter you intend on using and a description from the manufacturer of its operation so we can thoroughly evaluate how that is functioning. Our main concern here is that with the inverter controlling the different inputs: solar, batteries and an AC backup generator, (basically replacing an automatic transfer switch which is required in WEC’s standard), we need to understand how it will be separated from the grid during outages so our people are protected from back feeding.”
This all started because I sent them this drawing and nicely asking which way they preferred my ground to be set up. Because they are particular about it. I wanted to have it ready and the way they like.
Now because they haven’t kept up with new inverter technology, they don’t know what to make of this inverter. Asking me to “just add another inverter” is absurd.
Anyway they have put my project on hold.
The second paragraph is easy for me to refute. The inverter is UL1741SA compliant. I don’t need an auto transfer switch.
And I don’t plan on using a generator. I’m using the EG418kpv inverter.
The first paragraph here makes no sense to me. They want me to buy another inverter?? The first one was expensive enough. Can anyone with experience help me to respond here?
Email follows. “
We have two main issues that we are trying to resolve with the way the inverter manufacturer has your system designed.
First, VT PUC Rule 5.500 requires us to record production of your solar array separately. This requires a separate production meter from your exiting usage meter. We are currently working with another installer who is using a different inverter manufacturer with a similar setup and their solution is to install separate inverter(s) for the solar array and install the production meter between those and the main inverter. We would like to see the drawing below modified to show that setup before WEC can move forward.
Second, we need to have the exact model number for the 18kPV inverter you intend on using and a description from the manufacturer of its operation so we can thoroughly evaluate how that is functioning. Our main concern here is that with the inverter controlling the different inputs: solar, batteries and an AC backup generator, (basically replacing an automatic transfer switch which is required in WEC’s standard), we need to understand how it will be separated from the grid during outages so our people are protected from back feeding.”
This all started because I sent them this drawing and nicely asking which way they preferred my ground to be set up. Because they are particular about it. I wanted to have it ready and the way they like.
Now because they haven’t kept up with new inverter technology, they don’t know what to make of this inverter. Asking me to “just add another inverter” is absurd.