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Tech Help

Got a question? Take advantage of the knowledge and expertise of other CivicSolar members. Have a special skill or tip to pass on? Consider posting an article and adding to the depth of the CivicSolar knowledge base.

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  1. What is the difference between mono and poly panels?

    Asked 08/30/2012

    Question – 1 comment

  2. Using grounding clips

    Asked 08/28/2012

    The Unirac Code Compliant Installation Manual, on Page 25, shows that you should use two grounding clips between modules, at every other s

    Question – 1 comment

  3. BATTERY AND CHARGER INFO

    Asked 08/28/2012

    I have a 15 kW PV installation and wish to charge them in the day and discharge at night.

    Question – 2 comments

  4. Collector

    Asked 08/24/2012

    I have a 4 row 9panels per row installation.  Do I need to run the cables for each row to a collector box before going to the midnight cha

    Question – 1 comment

  5. Can condensation be present ( possible) inside the Type 4 enclosure?

    Asked 08/22/2012

    Your information on product states; protect the enclosed equipment against severe external condensation.

    Question – 1 comment

  6. How do I calculate Vtoc/Vtmp for a string sizing using the Outback charge controller tool?

    Asked 08/21/2012

    Question – 1 comment

  7. Does Schuco make an adjustable solar frame that will hold eight MPE 220 PS09 panels on a single 7" pole?

    Asked 08/21/2012

    Question

  8. With a 12 volt system can we use larger than 100 watt panels and is it wrong to add panels of varying sizes to existing ones?

    Asked 08/19/2012

    Question – 1 comment

  9. Does anyone have the capacity to develop our solar farm of about 100MW?

    Asked 08/15/2012

    We have land and the blessings of the local and state governments, we need someone to get a ppa and develop the project.

    Question – 2 comments

  10. How do I wire in two 277 VAC configured inverters to a 480/277Y main panel?

    Asked 08/13/2012

    Do I need 3 inverters to balance the load, or can I connect each inverter with its own breacker at the existing bus bars?

    Question – 1 comment

  11. What are your options for backfeeding an electrical system that is fed with 3 phase 120/240volt containing a 240 volt hi leg on?

    Asked 08/13/2012

    The panel we will have to back feed off of the inverter has a 240 volt hi leg on the B phase.

    Question – 1 comment

  12. Why is my inverter flashing red with everything hooked up right?

    Asked 08/08/2012

    Question – 1 comment

  13. Do Midnite Solar DC combiner boxes (MNPV___) have a DC Disconnect switch?

    Asked 08/08/2012

    Would like to know if any of the Midnite Solar DC Combiner boxes have a DC Disconnect switch on them or if you have to buy a product to ad

    Question – 1 comment

  14. If the panel voltage is 39V, what is the voltage of Charge Controller?

    Asked 08/08/2012

    Open circuit Voltage of the Panel is 38.7Volts and 8.7Amps, which Charge Controller we have to Select?

    Question – 1 comment

  15. I am currently using 2 Trace SW4024 to produce 240 AC. Two of my neighbors have been hit by lightning, destroying one or both

    Asked 08/06/2012

    I am using 2 Trace 4024 units to produce 240 vac for my home.  Two of my neighbors have been hit by lightning, destroying their units.

    Question – 1 comment

  16. How much extra output would a 200kW ballast mount system generate with a 10 degree tilt?

    Asked 08/02/2012

    I have a 200kW flat roof, ballast-mount solar installation and I need to evaluate the cost-benefit analysis for using a 10-degree tilt ver

    Question – 2 comments

  17. Can you wire an Enphase M210 240VAC at 208VAC?

    Asked 07/24/2012

    Word on the street is that Enphase is discontinuing the 208VAC version of the M210.  This puts a major hiccup in our project pipeline.

    Question – 1 comment

  18. How do you tie 6 panels in a series?

    Asked 07/23/2012

    How do I tie 6 Schott 225 watt panels together?

    Question – 1 comment

  19. How do you parallel the MS4024?

    Asked 07/19/2012

    I'm looking to parallel two Magnum MS4024s, and I'm curious if you need a special cable to do so.  Any suggestions?

    Question – 1 comment

  20. Low RFI MPPT

    Asked 07/18/2012

    I'm looking for a MPPT controller that could work with NiFe battery bank, 12V nominal, but wants to see about 15V finishing chgMax PV

    Question – 1 comment

  21. What is the difference between PV wire and USE-2 solar wire?

    Asked 07/18/2012

    I am thinking about using one of the new transformerless inverters, either the Astronergy / Chint Power inverters or the KACO New Energy i

    Question – 1 comment

  22. How do i read the print outs on mx60 system and understand them?

    Asked 07/18/2012

    The system shows  60 U in, 24.3 U out A 03.9 A 08.2 watts 0217  hr. 0009 on thE first charge controller.

    Question – 1 comment

  23. What is the best way to waterproof penetrations of a metal roof?

    Asked 07/18/2012

    We're working on a project with a standing seam roof, but we're concerned that the roof panels' attachment to the roof itse

    Question – 1 comment

  24. Uni-Solar Laminate on 8-inch Standing Seam roof?

    Asked 07/16/2012

    I have a large, south facing garage roof that faces south, just begging to be covered with PV laminate.

    Question – 1 comment

  25. Is the MECA Solar MS-2 tracker ARRA compliant?

    Asked 07/13/2012

    Question – 1 comment