kfergrocks
New Member
Hello friends,
I'm looking for assistance "debugging" my recent setup. I am not getting nearly the power output I was expecting.
Attached is my approved-by-Solark wiring diagram of the system.
Also attached is a picture of the the array taken at 12noon on a sunny day.
I have two Solarks AIO Inverters setup in parallel. Each Solark has 3 MPPT controllers and each controller can handle 2 strings.
I have 5 strings of panels. Each string has 9 panels in series. There are 4 Tigo TS4-A-2F in between every set of 2 panels and 1 Tigo for the last.
There is ~300ft of 8awg wire from panels to Solarks.
Master MPPT-1 has 2 strings in parallel (using an mc4 Y connector - I only have 4 sets of pos/neg wires running from field to house.)
All other MPPTs have 1 string each.
Safety voltage at the inverter read 2.9V (which according to Tigo is exactly what it should be) for each string.
Once the TIGOs were activated and with no load on the Inverters - all strings were reading ~330V at Solarks.
Each individual panel's ratings:
Master Solark
Solar power - 1.69KW
Grid power - 4.57KW
House Load - .79KW
Battery Load - 5.05KW
Slave Solark Power Readings
Solar power - 1.86KW
Grid power - 4.74KW
House Load - .9KW
Battery Load - 5.48KW
Any thoughts as to why my power output is ~25% of the max? Would the winter shadows be causing that much of an impact?
I'm looking for assistance "debugging" my recent setup. I am not getting nearly the power output I was expecting.
Attached is my approved-by-Solark wiring diagram of the system.
Also attached is a picture of the the array taken at 12noon on a sunny day.
I have two Solarks AIO Inverters setup in parallel. Each Solark has 3 MPPT controllers and each controller can handle 2 strings.
I have 5 strings of panels. Each string has 9 panels in series. There are 4 Tigo TS4-A-2F in between every set of 2 panels and 1 Tigo for the last.
There is ~300ft of 8awg wire from panels to Solarks.
Master MPPT-1 has 2 strings in parallel (using an mc4 Y connector - I only have 4 sets of pos/neg wires running from field to house.)
All other MPPTs have 1 string each.
Safety voltage at the inverter read 2.9V (which according to Tigo is exactly what it should be) for each string.
Once the TIGOs were activated and with no load on the Inverters - all strings were reading ~330V at Solarks.
Each individual panel's ratings:
- VOC - 38.97V
- ISC - 9.41A
- VMP - 31.67
- Imp - 8.84A
- VOC - 350V
- ISC - 18.82A
- VMP - 285
- Imp - 17.68A
- VOC - 350V
- ISC - 9.41A
- VMP - 285
- Imp - 8.84A
Master Solark
- MPPT-1 (1&2 from front)
- Volts - 273V
- Amps - 4.1A
- MPPT-2 (3rd from front)
- Volts - 281V
- Amps - 2.0A
- MPPT-1 (4th from front)
- Volts - 269V
- Amps - 2.3A
- MPPT-2 (5th from front)
- Volts - 281V
- Amps - 4.4A
Solar power - 1.69KW
Grid power - 4.57KW
House Load - .79KW
Battery Load - 5.05KW
Slave Solark Power Readings
Solar power - 1.86KW
Grid power - 4.74KW
House Load - .9KW
Battery Load - 5.48KW
Any thoughts as to why my power output is ~25% of the max? Would the winter shadows be causing that much of an impact?