Hi all. Just registered and I have some newbie questions... Apologies if this has been asked and answered.
I bought this solar panel from BHU because of the low price and I'm looking to have backup power for my new ("efficient") refrigerator and laptop workstation with the following specs:
Solyndra 220W Solar Panel
DC Electrical Characteristics
• STC Power Rating 210W
• PTC Power Rating 194.2W 1
• STC Power per unit of area 7.9W/ft2 (84.5W/m2)
• Peak Efficiency 8.45%
• Power Tolerances -4%/+4%
• Number of Cells data not available
• Nominal Voltage not applicable
• Imp 2.21A
• Vmp 95.1V
• Isc 2.36A
• Voc 125.3V
• NOCT 44°C
• Temp. Coefficient of Power -0.38%/K
• Temp. Coefficient of Voltage -0.351V/K
• Series Fuse Rating 24A
• Maximum System Voltage 1000V
Mechanical Characteristics
(2) 24v 24ah 621.6wh 21x SPIM08HP (could be wired parallel or series), or
(1) K2 12.8v 138.53ah 1789wh Lifepo4 Module or
(2) BMW OEM 4s 14.8v 75ah 1.11kWh Battery Module (could be wired parallel or series)
With each battery, I would deplete one battery in one day for the fridge. For my computer workstation, I would have more than a week of autonomy, not including one LED light and fan at night.
Questions:
1) What size MPPT controller should I buy? 30, 40, 50, 60 Amp model?
2) If the MPPT says, "Maximum input voltage (open circuit voltage): 150V," is that high enough to meet the output from the solar panel? (Voc 125.3V < 150V = OK?)
3) The Mechanical Specs says "Output Terminal Type Tyco SolarLok Connector MC4." Does that imply there is a junction box (or no junction box) with terminals for MC4 wire connections, or it implies there are MC4 wires already connected?
4) Does the EPEVER AN and BN series have MC4 terminals, or regular screw and pinch terminals? If no MC4 terminals, then I I have to cut off the MC4 connector and strip the wire for the MPPT?
5) Any other comments/suggestions you would make?
Thanks for your time and patience.
Ed
I bought this solar panel from BHU because of the low price and I'm looking to have backup power for my new ("efficient") refrigerator and laptop workstation with the following specs:
Solyndra 220W Solar Panel
DC Electrical Characteristics
• STC Power Rating 210W
• PTC Power Rating 194.2W 1
• STC Power per unit of area 7.9W/ft2 (84.5W/m2)
• Peak Efficiency 8.45%
• Power Tolerances -4%/+4%
• Number of Cells data not available
• Nominal Voltage not applicable
• Imp 2.21A
• Vmp 95.1V
• Isc 2.36A
• Voc 125.3V
• NOCT 44°C
• Temp. Coefficient of Power -0.38%/K
• Temp. Coefficient of Voltage -0.351V/K
• Series Fuse Rating 24A
• Maximum System Voltage 1000V
Mechanical Characteristics
* Type Cylindrical CIGS
* Output Terminal Type Tyco SolarLok Connector MC4
* Frame Color Black
* Length 89.8in (2,280mm)
* Width 42.9in (1,090mm)
* Depth 1.4in (36mm)
* Weight 70.1lb (31.8kg)
Looking to connect it with a:- EPEVER MPPT Solar Charge Controller Maximum input voltage (open circuit voltage): 150V Tracer AN Series in either 30, 40, 50, or 60 Amp or
- Tracer BN Series 150V PV Input with no LCD screen (only 40 Amp max?) or more.
(2) 24v 24ah 621.6wh 21x SPIM08HP (could be wired parallel or series), or
(1) K2 12.8v 138.53ah 1789wh Lifepo4 Module or
(2) BMW OEM 4s 14.8v 75ah 1.11kWh Battery Module (could be wired parallel or series)
With each battery, I would deplete one battery in one day for the fridge. For my computer workstation, I would have more than a week of autonomy, not including one LED light and fan at night.
Questions:
1) What size MPPT controller should I buy? 30, 40, 50, 60 Amp model?
2) If the MPPT says, "Maximum input voltage (open circuit voltage): 150V," is that high enough to meet the output from the solar panel? (Voc 125.3V < 150V = OK?)
3) The Mechanical Specs says "Output Terminal Type Tyco SolarLok Connector MC4." Does that imply there is a junction box (or no junction box) with terminals for MC4 wire connections, or it implies there are MC4 wires already connected?
4) Does the EPEVER AN and BN series have MC4 terminals, or regular screw and pinch terminals? If no MC4 terminals, then I I have to cut off the MC4 connector and strip the wire for the MPPT?
5) Any other comments/suggestions you would make?
Thanks for your time and patience.
Ed