Radian Outback GS8048A Configuration file Setup

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BensingD
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Posts: 1
Joined: Thu Jul 09, 2020 11:12 am
My RE system: Mate 3 Firmware: 003.019.001
GS Firmware: 001.006.070
FM80 Firmware: 003.003.000
FM80 Firmware: 003.003.000
FNDC Firmware: 001.001.071

Radian Outback GS8048A Configuration file Setup

Post by BensingD » Thu Jul 09, 2020 12:15 pm

I live in Texas with lots of sunny days and have a PV array rated at 7.8kw. I also have 8 FullRiver 6v batteries rated at 460 amps connected to the system. I never show more then 2300 w from the PV array and am only selling 31 kw a month back to the power company (This seems low for June). I have data logging set to verbose and the system does not seem to be operating at even half capacity.

I have attached a copy of the config.xml file to aid in a review.

Is there a standard config.xml file for the GS8048A in grid tied mode with AGM batteries connected? :?:

One the the FM80 always seems to be in sleep mode when I physically check the inverters.

The config files will also show i have set the system 2 volts below float.

Standard config files would be a nice touch to help. :grin:

I have factory reset the Mate3, Inverter, and both FM80s and then used the wizard to setup. Done this twice. :sad:
Attachments
Radian Config.docx
(7.85 KiB) Downloaded 41 times

Mike Curran
Forum Emperor
Posts: 1804
Joined: Sat Aug 28, 2004 6:28 pm
My RE system: Outback - Garage roof:
- 8 (2x4) Evergreen 180's into one FM80 (2007/2020 - replaced MX60)
- 6 (2×3) ALEO S79-300's into one FM80 (2017)
- 2 grid-tied GVFX3524's classic stacked for 120/240VAC (2007)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS, OpticsRE. Tigo Energy ES maximizers on each PV module.

Westinghouse Solar - Barn roof: (2012)
- 30 (2x15) 235W panels with Enphase M215 microinverters, grid-tied

Outback Skybox - Barn roof: (2019)
- 14 Talesun 275W in series (DC array input to SB inverter/charger)
- 3 SimpliPhi 3.8 batteries, 48V, 225Ah total
- AC coupled input (manual switch during grid outage only) from 14 Talesun 275W,
Enphase M215 microinverters, normally direct grid tied

All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: Radian Outback GS8048A Configuration file Setup

Post by Mike Curran » Fri Jul 10, 2020 7:55 am

Do you have auto grid-tie control enabled on your FNDC? I can't tell from your config file. If not, it should be.
Screenshot_20200710-105132_Adobe Acrobat.jpg
I noticed your FM80 charge controllers' voltage settings are set 0.2 volts above the Radian's settings. For best results in a 48 volt system, should be set 0.4 volts higher.

Finally, you have global charge control disabled. Probably won't change your selling but you might try enabling it.
http://www.tigoenergy.com/site.php?95b2dca2-ca6c
https://enlighten.enphaseenergy.com/public/systems/Hctc107221

raysun
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Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
Suniva 330 watt panels (12 - 6 strings of 2 in series)
Hyundai 355 watt panels (6 - 3 strings of 2 in series)
Honda EU7000is gas fuel generator

Re: Radian Outback GS8048A Configuration file Setup

Post by raysun » Fri Jul 10, 2020 8:52 am

The Fullriver documents specify a charging rate of C20 x .15 - .35. The C20 capacity of the battery is 410AH, so Bulk charging should be in the range of 65 - 143.5A.

The FM80 charge controllers should be set to limit the charging current within the above range. The low end (65 Amps) will assure the longest service life, but leave a lot of PV harvest capacity unused. The high end (143.5 Amps) will materially shorten battery service life, but will allow the FM80s to harvest more power from the arrays to sell back to the power company.

Mike Curran
Forum Emperor
Posts: 1804
Joined: Sat Aug 28, 2004 6:28 pm
My RE system: Outback - Garage roof:
- 8 (2x4) Evergreen 180's into one FM80 (2007/2020 - replaced MX60)
- 6 (2×3) ALEO S79-300's into one FM80 (2017)
- 2 grid-tied GVFX3524's classic stacked for 120/240VAC (2007)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS, OpticsRE. Tigo Energy ES maximizers on each PV module.

Westinghouse Solar - Barn roof: (2012)
- 30 (2x15) 235W panels with Enphase M215 microinverters, grid-tied

Outback Skybox - Barn roof: (2019)
- 14 Talesun 275W in series (DC array input to SB inverter/charger)
- 3 SimpliPhi 3.8 batteries, 48V, 225Ah total
- AC coupled input (manual switch during grid outage only) from 14 Talesun 275W,
Enphase M215 microinverters, normally direct grid tied

All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: Radian Outback GS8048A Configuration file Setup

Post by Mike Curran » Fri Jul 10, 2020 1:15 pm

The high end (143.5 Amps) will materially shorten battery service life, but will allow the FM80s to harvest more power from the arrays to sell back to the power company.
Ray, once charge parameters are met, battery voltage will be held at the sell setpoint voltage, which should be pretty close to the float setting (need to set float lower than battery mfr's rec). IMO, this will not shorten battery life - it's exactly like holding them at float voltage. All that extra energy with the higher current limit will go to the grid.
http://www.tigoenergy.com/site.php?95b2dca2-ca6c
https://enlighten.enphaseenergy.com/public/systems/Hctc107221

raysun
Forum Emperor
Posts: 2993
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
Suniva 330 watt panels (12 - 6 strings of 2 in series)
Hyundai 355 watt panels (6 - 3 strings of 2 in series)
Honda EU7000is gas fuel generator

Re: Radian Outback GS8048A Configuration file Setup

Post by raysun » Fri Jul 10, 2020 1:26 pm

Mike Curran wrote:
Fri Jul 10, 2020 1:15 pm
The high end (143.5 Amps) will materially shorten battery service life, but will allow the FM80s to harvest more power from the arrays to sell back to the power company.
Ray, once charge parameters are met, battery voltage will be held at the sell setpoint voltage, which should be pretty close to the float setting (need to set float lower than battery mfr's rec). IMO, this will not shorten battery life - it's exactly like holding them at float voltage. All that extra energy with the higher current limit will go to the grid.
Yes I concur with the battery being fine at full charge and selling, it's the process of getting there that's stressful. If the battery sees the high end of the charging current at the early phase of Bulk, when internal impedance is low, stress is inevitable. Once fully charged, the high current will likely have substantially less impact, as much of it appears to simply bypass the battery altogether in favor of feeding the load.

Mike Curran
Forum Emperor
Posts: 1804
Joined: Sat Aug 28, 2004 6:28 pm
My RE system: Outback - Garage roof:
- 8 (2x4) Evergreen 180's into one FM80 (2007/2020 - replaced MX60)
- 6 (2×3) ALEO S79-300's into one FM80 (2017)
- 2 grid-tied GVFX3524's classic stacked for 120/240VAC (2007)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS, OpticsRE. Tigo Energy ES maximizers on each PV module.

Westinghouse Solar - Barn roof: (2012)
- 30 (2x15) 235W panels with Enphase M215 microinverters, grid-tied

Outback Skybox - Barn roof: (2019)
- 14 Talesun 275W in series (DC array input to SB inverter/charger)
- 3 SimpliPhi 3.8 batteries, 48V, 225Ah total
- AC coupled input (manual switch during grid outage only) from 14 Talesun 275W,
Enphase M215 microinverters, normally direct grid tied

All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: Radian Outback GS8048A Configuration file Setup

Post by Mike Curran » Fri Jul 10, 2020 3:51 pm

My battery is 4 times the capacity Ah wise as his, but even with global charge limit set for 200A, the highest charging current my system saw today (during the absorb phase) was about 50A - also (like him) with 2 FM80s.
Screenshot_20200710-184114.jpg
I know I may be comparing apples to oranges and I don't know how his system is set up to operate, but if he's set up to sell then he's probably using the grid to support his loads as well, so his battery isn't being discharged much. Could be wrong, tho' - his GS has a lot more operating flexibility than my GVFX's.
http://www.tigoenergy.com/site.php?95b2dca2-ca6c
https://enlighten.enphaseenergy.com/public/systems/Hctc107221

raysun
Forum Emperor
Posts: 2993
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
Suniva 330 watt panels (12 - 6 strings of 2 in series)
Hyundai 355 watt panels (6 - 3 strings of 2 in series)
Honda EU7000is gas fuel generator

Re: Radian Outback GS8048A Configuration file Setup

Post by raysun » Fri Jul 10, 2020 4:17 pm

Mike Curran wrote:
Fri Jul 10, 2020 3:51 pm
My battery is 4 times the capacity Ah wise as his, but even with global charge limit set for 200A, the highest charging current my system saw today (during the absorb phase) was about 50A - also (like him) with 2 FM80s. Screenshot_20200710-184114.jpg I know I may be comparing apples to oranges and I don't know how his system is set up to operate, but if he's set up to sell then he's probably using the grid to support his loads as well, so his battery isn't being discharged much. Could be wrong, tho' - his GS has a lot more operating flexibility than my GVFX's.
Mike's insight here is valuable for practical application.
"Ask the man who owns one", I always say.

Mike Curran
Forum Emperor
Posts: 1804
Joined: Sat Aug 28, 2004 6:28 pm
My RE system: Outback - Garage roof:
- 8 (2x4) Evergreen 180's into one FM80 (2007/2020 - replaced MX60)
- 6 (2×3) ALEO S79-300's into one FM80 (2017)
- 2 grid-tied GVFX3524's classic stacked for 120/240VAC (2007)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS, OpticsRE. Tigo Energy ES maximizers on each PV module.

Westinghouse Solar - Barn roof: (2012)
- 30 (2x15) 235W panels with Enphase M215 microinverters, grid-tied

Outback Skybox - Barn roof: (2019)
- 14 Talesun 275W in series (DC array input to SB inverter/charger)
- 3 SimpliPhi 3.8 batteries, 48V, 225Ah total
- AC coupled input (manual switch during grid outage only) from 14 Talesun 275W,
Enphase M215 microinverters, normally direct grid tied

All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: Radian Outback GS8048A Configuration file Setup

Post by Mike Curran » Fri Jul 10, 2020 4:53 pm

If I ever go off grid, I know who to ask.
http://www.tigoenergy.com/site.php?95b2dca2-ca6c
https://enlighten.enphaseenergy.com/public/systems/Hctc107221

pss
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Posts: 635
Joined: Mon Jul 24, 2017 8:40 am
My RE system: 8330 watts in three strings, Flexmax 60 x 3, Radian 8048A, GSLC load center, Mate 3S, Hub 10.3, FN-DC and 900 Amp, 48V Trojan T105-RE battery bank.

Re: Radian Outback GS8048A Configuration file Setup

Post by pss » Fri Jul 10, 2020 5:08 pm

Comments?
Screenshot (56).png

Mike Curran
Forum Emperor
Posts: 1804
Joined: Sat Aug 28, 2004 6:28 pm
My RE system: Outback - Garage roof:
- 8 (2x4) Evergreen 180's into one FM80 (2007/2020 - replaced MX60)
- 6 (2×3) ALEO S79-300's into one FM80 (2017)
- 2 grid-tied GVFX3524's classic stacked for 120/240VAC (2007)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS, OpticsRE. Tigo Energy ES maximizers on each PV module.

Westinghouse Solar - Barn roof: (2012)
- 30 (2x15) 235W panels with Enphase M215 microinverters, grid-tied

Outback Skybox - Barn roof: (2019)
- 14 Talesun 275W in series (DC array input to SB inverter/charger)
- 3 SimpliPhi 3.8 batteries, 48V, 225Ah total
- AC coupled input (manual switch during grid outage only) from 14 Talesun 275W,
Enphase M215 microinverters, normally direct grid tied

All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: Radian Outback GS8048A Configuration file Setup

Post by Mike Curran » Fri Jul 10, 2020 5:39 pm

Pss - Is there an absorb cycle anywhere there? It looks like voltage rose around the 1600 hour - was that it?

It doesn't look like you're set up to use the FNDC to assure selling by first meeting charge parameters in the morning, then auto-setting the float voltage to equal absorb. Otherwise I would've expected to see a voltage rise in the a.m. before selling could start, and you're selling after a point when voltage has risen slightly from overnight lows but it's not obvious that it ever reached absorb - although it's not easy to see exactly how high it got.
http://www.tigoenergy.com/site.php?95b2dca2-ca6c
https://enlighten.enphaseenergy.com/public/systems/Hctc107221

pss
Forum Czar
Posts: 635
Joined: Mon Jul 24, 2017 8:40 am
My RE system: 8330 watts in three strings, Flexmax 60 x 3, Radian 8048A, GSLC load center, Mate 3S, Hub 10.3, FN-DC and 900 Amp, 48V Trojan T105-RE battery bank.

Re: Radian Outback GS8048A Configuration file Setup

Post by pss » Sat Jul 11, 2020 9:42 am

Actually system is set to grid tied sell. Absorb is set to 4 hours. Sell and float are each 53.6. Auto grid tie and auto charge termination are disabled as is global charger control. The grid is disconnected at 16:00 hours. The result is the system stays in "bulk" through the day, amps are accumulated in the batteries to reach their charged values (FNDC is set charged voltage of 57 and return amps 18 for 2 minutes) and 100 SOC matches the SG), selling takes place while the batteries are charging as the system produces excess PV and usually after 16:00, there is adequate PV to stir ("boil up") the batteries as they hit about 58.7 volts. So instead of giving a full charge to the batteries before any selling, I allow the batteries to fully charge while I sell, then peak up the voltage. I have found over the past 20 months this works just fine for me. So that is why my graph shows that nice little voltage spike and FNDC hits 100 towards the end of the day. Then you can see as the sun goes down, the batteries are exercised anywhere from 20-25% over the 5 hour period till 21:00. Then I switch to grid, keeping batteries for emergency use and using grid when the rates are low. I do not have enough battery capacity (I would have to add about another 4000 watt array and charger and expand the batteries by about C20 = 200-250 to run till the next PV cycle on batts alone. Right now, my land geography doesn't allow expansion.

Comments?

Mike Curran
Forum Emperor
Posts: 1804
Joined: Sat Aug 28, 2004 6:28 pm
My RE system: Outback - Garage roof:
- 8 (2x4) Evergreen 180's into one FM80 (2007/2020 - replaced MX60)
- 6 (2×3) ALEO S79-300's into one FM80 (2017)
- 2 grid-tied GVFX3524's classic stacked for 120/240VAC (2007)
- 12 Surrette/Rolls 2V x 1766Ah (2007)
- Hub10.3, Mate3s, FNDC, RTS, OpticsRE. Tigo Energy ES maximizers on each PV module.

Westinghouse Solar - Barn roof: (2012)
- 30 (2x15) 235W panels with Enphase M215 microinverters, grid-tied

Outback Skybox - Barn roof: (2019)
- 14 Talesun 275W in series (DC array input to SB inverter/charger)
- 3 SimpliPhi 3.8 batteries, 48V, 225Ah total
- AC coupled input (manual switch during grid outage only) from 14 Talesun 275W,
Enphase M215 microinverters, normally direct grid tied

All self-designed and self-installed
Location: Chagrin Falls, Ohio

Re: Radian Outback GS8048A Configuration file Setup

Post by Mike Curran » Sat Jul 11, 2020 12:12 pm

Sounds like you're located where you can depend on enough sunlight after 4:00pm to meet charge parameters every day.

With my 3.2kw array undersized for my battery and with an abundance of shading, my battery can't afford to wait for the absorb like yours does.
http://www.tigoenergy.com/site.php?95b2dca2-ca6c
https://enlighten.enphaseenergy.com/public/systems/Hctc107221

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