Inverter Search - U.S., grid interactive, UL1741 etc, Multiple MQTTs, 6kW+

[quantum`]

I thought I had my answer with the Chilicon microinverters, however Generac informs me, "Using only a single panel per microinverter, you wouldn't quite meet the threshold for our start up voltage requirements (55V). If you put 2 panels per microinverter, that is going to push you over our MPPT tracking range and start up voltages."

Huh? We're supposed to be living in the 21st Century here, folks. WTH? And nothing Enphase makes can handle my panel power.

Longi HI-Mo 9, 660w. I've bought 72 of these panels for my housing development.

AFAICT Fronius makes a good unit but it may not be all-in-one. LuxPower also makes good units but they are gigantic and expensive. SunGrow has a terrible product presentation, and -mandates- connection to their frick-in' 'cloud'. Amensolar/NHX/Vestwoods I am up in the air about. LuxPower/Megarevo/EG4 has good features but they are gigantic and clunky-looking.

Eleven 660w panels will go on each house in two to three strings. I will install them grid-tied, but it would be nice to have the possibility of future owners to add batteries. I'm certainly not going to do it. I absolutely must pass electrical inspection by the State. (WA)

I realize that there's a maelstrom of opinions here but the forum overall seems fact-based and user-friendly.

Any advice?

 

[1201]

11 panels in three strings or 11 panels per string?

 

[Brucey]

I thought I had my answer with the Chilicon microinverters, however Generac informs me, "Using only a single panel per microinverter, you wouldn't quite meet the threshold for our start up voltage requirements (55V). If you put 2 panels per microinverter, that is going to push you over our MPPT tracking range and start up voltages."

Huh? We're supposed to be living in the 21st Century here, folks. Nothing Enphase makes can handle my panel power.

Longi HI-Mo 9, 660w. I've bought 72 of these for my housing development.

AFAICT Fronius makes a good unit but it may not be all-in-one. LuxPower also makes good units but they are gigantic and expensive. SunGrow has a terrible product presentation, and -mandates- connection to their 'cloud'. Amensolar/NHX/Vestwoods I am up in the air about. Megarevo/EG4 has good features but they are gigantic and clunky-looking.

Eleven 660w panels will go on each house. I will install them grid-tied, but it would be nice to have the possibility of future owners to add batteries. I'm certainly not going to do it. I absolutely must pass electrical inspection by the State. (WA)

I realize that there's a maelstrom of opinions here but the forum overall seems fact-based and user-friendly.

Any advice?

As you are in Washington may want to consider a locally built option from Midnite Solar in Arlington:

Rosie 7kW inverter/charger. This has huge surge capability of up to 20kW which is very rare for a HF inverter.

MidNite Solar MNROSIE7048RE Inverter Charger 7000W 48VDC

Shop now for MidNite Solar MNROSIE7048RE Inverter Charger 7000W 48VDC.

www.stellavolta.com

Hawkes bay 90/120A single tracker 600V scc

MidNite Solar MNHAWKE'S BAY 90 Charge Controller 600VDC

Shop now for MidNite Solar MNHAWKE'S BAY 90 Charge Controller 600VDC 90A.

www.stellavolta.com

Barcelona 200A dual tracker 600v scc.

MidNite Solar MNBCLNA Charge Controller 600VDC 200A

Shop now for MidNite Solar MNBCLNA Barcelona Charge Controller 600VDC 200A.

www.stellavolta.com

Everything is UL1741 listed, midnite do sell associated breaker boxes that handle overcurrent protection and bypass for the inverter and overvoltage protection and breakers for PV. Option boards are available for gfci and afci which you'll prob need for roof mounted panels. Can add midnite solar 5kwh rack mount or 16kWh upright batteries down the line, or anything else that speaks pylontech over canbus.

 

[Brucey]

54V VOC means 11 panels could be at 594V at 25C. Any kind of dip in temps will cause a 600V scc to be destroyed as you go over voltage. You'd need to go to 10 panels to be safe.