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  1. Profile: Caleb Arthur, owner of Missouri Sun Solar

    Added by Elise Benoit on 08/26/2013

    Caleb Arthur loves watching huge smiles break on the faces of his customers when their old electric meters start “running backwards.


  2. FERC Chair Jon Wellinghoff: Solar ‘Is Going to Overtake Everything’

    Added by Missing (not verified) on 08/22/2013

    By  Herman K.


  3. 8/20. Word of the Week.

    Added by Alex O'Sullivan on 08/20/2013

    The thermal coefficient for PV modules (all types) is a negative coefficient that is used to describe how module voltage changes with te


  4. How does Depth of Discharge factor into Grid Connected battery systems?

    Added by Stuart Fox on 08/20/2013

    In order to design a battery that will last and provide reliable service for its full rated life, there are several criteria to consider,


  5. 8/13. Word of the Week.

    Added by Stuart Fox on 08/13/2013

    LCOE is used for solar projects to describe the comparative cost between different systems.


  6. How to get the most life out of Flooded and Sealed Lead Acid Batteries

    Added by Natalie Maslow on 08/07/2013

    General Overview of Lead Acid Batteries Lead Acid batteries are still the most common form of energy storage for photovoltaic syste


  7. Would You Rather Fight a Horse-Sized Duck or a Hundred Duck-Sized Horses?

    Added by Stuart Fox on 07/29/2013

    In December last year, CivicSolar published an article on the emergence of tier 1 UL listed AC modules and their applicability for pro


  8. A Few Words About Battery Hazards and Why They Happen

    Added by Missing (not verified) on 07/03/2013

    Shorted Cell Cell short circuits can be caused by several conditions, which include the following: Faulty separators Le


  9. Defining US Content Compliancies: ARRA vs BAA vs TAA vs Made in USA vs Ex-Im

    Added by Nicholas Yeh on 05/20/2013

    As the solar photovoltaic industry continues to grow in the United States, installers and project developers will have to become more


  10. DC Combining and Disconnecting Options for Ungrounded PV Arrays

    Added by Nicholas Yeh on 03/22/2013

    DC Disconnect Wiring Options for Ungrounded PV Arrays With the adoption of transformerless inverters becoming more common in the No


  11. Protecting the Latest Solar Energy Systems from Lightning - A Growing Challenge

    Added by Kirk Rosener on 03/11/2013

    Our  previous article discussed aspects of the NFPA 780 code that maximize the safety of the public after an occurrence of a li


  12. To Clean or not to Clean my Snow Covered Solar Panels?

    Added by Stuart Fox on 02/11/2013

    Effect on Production It's a well known fact that as temperature drops below 77 degrees F (the temperature at which modules are


  13. 50% Bonus Depreciation Lives on in Solar through 2013

    Added by Michael Goldberg on 01/08/2013

    Great news, the fiscal cliff deal that is currently in place will have a significant positive impact on the solar industry.  Primarily, th


  14. A Move Towards AC Modules

    Added by Levent Bas on 12/26/2012

    Grid-interoperability has been a main focus of the solar industry since it first emerged as a competitive option for generating


  15. Pushing Boundaries with the SMA Sunny Island

    Added by Stuart Fox on 12/03/2012

    The SMA Sunny Island 5048 US is frequently specified for AC Coupled and Off Grid projects, but most installers don’t realize just how

    Article – 1 comment

  16. PV Design Software and the Cloud

    Added by Stuart Fox on 11/12/2012

    The Evolution of PV Design The design process for photovoltaic systems has, for the most part, transitioned from a simple electri


  17. Arc Fault Detection

    Added by Stuart Fox on 10/15/2012

    What is an electrical arc? An electrical arc is a continuous plasma discharge through air.

    Article – 3 comments

  18. AC Coupling

    Added by Stuart Fox on 10/01/2012

    An Introduction to AC coupling Through AC coupling, a grid-tied inverter can continue to operate when the grid goes down by syncing

    Article – 4 comments

  19. Building Integrated Photovoltaics

    Added by Jason Chee on 09/10/2012

    What are Building Integrated Photovoltaics?


  20. Corrosive Soil and Ground Mounted PV

    Added by Jason Chee on 07/25/2012

    The Situation Most undisturbed soil is suitable for the average driven steel post or light concrete footing.

    Article – 1 comment

  21. Choosing the Right MPPT Solar Charge Controller

    Added by Stuart Fox on 07/13/2012

    Inverter and Charge Controller - a delicate balance   In an Off-Grid or Hybrid (Grid-tied, with battery back-up) PV syst


  22. How does heat affect inverters?

    Added by Stuart Fox on 03/01/2012

    Sun and Heat – Too Much of a Good Thing It’s well understood that heat affects all PV modules – they are tested and rated at 25 d

    Article – 1 comment

  23. Using the WEEB solution for grounding in solar applications?

    Added by Phil Green on 02/27/2012

    Grounding PV modules to reduce or eliminate shock and fire hazards is necessary and required by the National Electrica


  24. Mobile Apps for Solar PV design and calculation

    Added by Stuart Fox on 02/16/2012

    Smart phones and tablets have become a tool of choice for innumerable purposes. The simplest Apps contain ready co

    Article – 1 comment

  25. How much of a load does a solar array add to a roof?

    Added by Onur Turna on 02/15/2012

    Evaluating the ability of a roof to support solar panels requires assessing the condition and construction of th