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Question GridBOSS + FlexBOSS21 - production metering for SREC reporting?

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(@hicks81)
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Joined: 7 months ago

I have a FlexBOSS21 with a GridBOSS and DC-coupled battery storage, and I'm registering for SRECs in Pennsylvania, where a solar-dedicated revenue-grade meter appears to be required for systems like mine.

Your Hybrid Inverter RGM Protocol Support doc says RGM protocol integration isn't supported when a GridBOSS is in the system. Three questions:

1. Is that still accurate on current firmware, and is GridBOSS support planned?
2. Reading the doc, the WattNode CTs land on the inverter's grid input cables - so is this integration intended as improved grid-side sensing rather than a PV production meter? If I need a solar production figure for SREC reporting, does the RGM integration provide that at all, with or without a GridBOSS?
3. If the answer to (2) is no, is there any supported way to get a revenue-grade PV production number out of a FlexBOSS21 - or is an external meter on the FlexBOSS-to-GridBOSS AC conductors the only route?

Also passing along a request already raised here: lugs or a landing point on the GridBOSS for a production meter would save owners in SREC states a lot of money and rework.


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Posts: 9
(@shankusmc)
Active Member
Joined: 7 months ago

I'm also interested in any future replies from @eg4eric or anyone else with direct knowledge of being able to monitor PV production with a RGM and meet SREC reporting. I have future plans to move 10 of 30 PV panels to my second Flexboss21 in order to charge 2 wallmount batteries when offgrid. Right now 100% of my PV production goes through my #1 Gridboss which is sent through the SE / grid when the grid is up. Given my 400A split panel I have 2 Gridbosses and 2 Flexbosses, but they are "separated" behind the meter when the grid is down.


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EG4 Eric
Posts: 1215
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(@eg4eric)
EG4 Online Support
Joined: 2 years ago

1. Is that still accurate on current firmware, and is GridBOSS support planned?

 

Yes, this is still currently accurate. 

2. Reading the doc, the WattNode CTs land on the inverter's grid input cables - so is this integration intended as improved grid-side sensing rather than a PV production meter? 

 

Yes, it is intended as improved Grid side sending rather than PV Production. This is for when you are not using a Gridboss.

3. If the answer to (2) is no, is there any supported way to get a revenue-grade PV production number out of a FlexBOSS21 - or is an external meter on the FlexBOSS-to-GridBOSS AC conductors the only route?

 

As of now, the best way would be to extract the data from the EG4 Monitoring website. 


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