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  1. Clouds will affect the

    Answered by on 5 days ago

    Clouds will affect the performance of your photovoltaic modules, which in turn will affect the performance of the inverter.  If the sun is not shining on your modules t

    Answer

  2. The main difference would be

    Answered by on 5 days ago

    The main difference would be the input voltage on the DC side and where it comes from.

    Answer

  3. The following link indicates

    Answered by on 04/08/2014

    The following link indicates that you can get the 30% credit under the personal tax credit for residential renewable energy tax credit: Personal Tax Credit Residential E

    Answer

  4. Les, No. The output circuit

    Answered by on 04/02/2014

    Les, No. The output circuit of the Enphase inverters needs to be connected to a 2-pole, 240V breaker only.

    Answer

  5. Enphase's suggested maximum

    Answered by on 03/27/2014

    Enphase's suggested maximum ambient temperature is 65C.

    Answer

  6. Very good question.Here is a

    Answered by on 03/18/2014

    Very good question.

    Answer

  7. Please explain what you mean

    Answered by on 03/14/2014

    Please explain what you mean by compatible. Are you asking if they have the same specifications?

    Answer

  8. I'm assuming you are

    Answered by on 03/14/2014

    I'm assuming you are referring to 9000 watt-hours.  If you divide your watt-hours (9000)  by system voltage (12V) you will get amp-hours.....750 amp-hours in this ca

    Answer

  9. It depends on the

    Answered by on 03/13/2014

    It depends on the inverter.

    Answer

  10. Typically, vertical mounting

    Answered by on 03/10/2014

    Typically, vertical mounting would only be used in a far northern or southern latitude.

    Answer

  11. The Soladeck enclosure has

    Answered by on 03/10/2014

    The Soladeck enclosure has knockouts for 1/2" and 3/4" strain reliefs. A 3/4" strain relief with a clamping range of 9-16mm would work.

    Answer

  12. There has been a change to

    Answered by on 02/27/2014

    There has been a change to the building code that is now addressing PV systems mounted on roofs.

    Answer

  13. JA Solar is an abbreviated

    Answered by on 02/25/2014

    JA Solar is an abbreviated form of Jing Ao Solar.

    Answer

  14. Can you please provide more

    Answered by on 02/25/2014

    Can you please provide more information?  Do you know the name of the software?  What structural presentation are you referring to?

    Answer

  15. Hi David,   On this project

    Answered by on 02/18/2014

    Hi David,    On this project you should consider using a ballast mounted racking solution. The main benefits are - low cost, and no roof penetrations.

    Answer

  16. The panels do not need to be

    Answered by on 02/05/2014

    The panels do not need to be CEC approved but it is a very good idea.   Here is a quick primer on CSI from SCE.

    Answer

  17. They are the same company

    Answered by on 02/05/2014

    They are the same company with different divisions.  Hanwha purchased Q Cell in 2013 and is managing it as a stand alone business unit.

    Answer

  18. We have six Sunny Boy SWR

    Answered by on 02/03/2014

    We have six Sunny Boy SWR 2500U inverters that were providing, until last November, web-based data via Fat Spaniel RS485 interface through our installer's now-de

    Answer

  19. In PV systems the shunt is

    Answered by on 12/27/2013

    In PV systems the shunt is used for current measuring, typically in a system with batteries to monitor their state of charge (SOC).....ie: how many amps are going in and

    Answer

  20. I am not a tax professional. 

    Answered by on 12/27/2013

    I am not a tax professional.  You should seek the advice of a tax professional that can analyze your specific situation before making any decisions regarding the taking o

    Answer

  21. NEC article 690 states that

    Answered by on 12/27/2013

    NEC article 690 states that maximum DC voltage for a PV system must be kept under 600VDC.

    Answer

  22. AC modules are UL listed as a

    Answered by on 12/24/2013

    AC modules are UL listed as a complete unit comprised of a micro-inverter and a PV module.

    Answer

  23. Get a copy of the Expedited

    Answered by on 12/24/2013

    Get a copy of the  Expedited Permit Process Report  and check out the single lines. They are about as general as you can get.

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  24. I saw an add for a system

    Answered by on 12/23/2013

    I saw an add for a system composed of what looked like a couple of 20" x 4" big blue filter holders filled with an ion exchange resin.

    Answer

  25. Those are nice 1-lines and

    Answered by on 12/17/2013

    Those are nice 1-lines and they cover the most common interconnection scenarios pretty well.

    Answer