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MEXICOWANDERER's avatar
MEXICOWANDERER
Explorer
Oct 02, 2013

12 Volt PWM Type Panel THE MOST BANG FOR THE BUCK?

In this case MPPT does not exist. So deal with 12 volt PWM rated panels.

Is there a panel out there with the best bang for the buck? Maybe 7 to 9 amperes maybe more? San Diego area. Shipping can be a killer. Someone mentioned Corona? Multiple panels are out of the question because these are being sneaked into Mexico.

So, A bigmother panel with the highest amperage and best amperes for the buck.

I got vertigo trying to find one.

5 Replies

  • CA_Traveler's avatar
    CA_Traveler
    Explorer III
    Oct 03, 2013
    So wrote:
    Grape Solar GS-S-250-Fab5 250-Watt

    It is 37 Voc but many 12v PWM controllers will handle the higher Voc. Personally, I prefer MPPT. Thru Amazon w/free shipping, it equates to $1.50/watt.

    Specs: http://www.grapesolar.com/files/3113/3789/6931/GS-S-250-Fab5_Rev-2.pdf
    But for $1/W he can get the SolarBlvd 12V 140W panel and have more power with a smaller footprint on his PWM controller.

    BTW Solar Blvd has a 270W panel for $202 plus shipping. Why use Amazon?
  • So's avatar
    So
    Explorer
    Oct 02, 2013
    Grape Solar GS-S-250-Fab5 250-Watt

    It is 37 Voc but many 12v PWM controllers will handle the higher Voc. Personally, I prefer MPPT. Thru Amazon w/free shipping, it equates to $1.50/watt.

    Specs: http://www.grapesolar.com/files/3113/3789/6931/GS-S-250-Fab5_Rev-2.pdf
  • Almot's avatar
    Almot
    Explorer III
    Oct 02, 2013
    Bigger bang for the buck is to be found in bigger panels. The biggest 12V panel I saw was ~11A, but if you only need 7-9A, this is easier.
  • time2roll's avatar
    time2roll
    Nomad
    Oct 02, 2013
    Corona? Maybe you meant Norco. Solarblvd has a 140w panel for $139 +tax. Get two with parallel MC4 connectors $288. Isc 8.4a (each)

    The two with permanent looking snap on connectors might pass as a single unit for personal use, maybe?

    http://www.solarblvd.com

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