1. Welcome Hearth.com Guests and Visitors - Please enjoy our forums!
    Hearth.com GOLD Sponsors who help bring the site content to you:
    Hearthstone Soapstone and Cast-Iron stoves( Wood, Gas or Pellet Stoves and Inserts)
    Caluwe - Passion for Fire and Water ( Pellet and Wood Hydronic and Space Heating)

Low Cost PV panels

Post in 'The Green Room' started by peakbagger, Jul 12, 2012.

  1. peakbagger

    peakbagger Minister of Fire

    Joined:
    Jul 11, 2008
    Messages:
    1,604
    Loc:
    Northern NH
    For general interest I just got a e-mail from the Sunelectric that they have another couple of containers of close out PV panels. Depending on your voltage requirements they have them as low a 0.98 plus shipping per watt. I bought similiar panels prevously and it required patience but I eventually did get mine and they work well. They use the forrmer Evergreen Solar string ribbon process and at least the Evergreens were very well built (I am not sure about the German versions they have now. )

    The nice thing about this batch is they have both high voltage and low voltage panels. High voltage panels are typically used for grid tie while low voltage is for off grid. These days there are charge controllers that will let one type replace the other but the low cost off grid option is the low voltage panels.

    The big caveat is that these are close outs, no warantee to speak of although if they are DOA and you want to go to the hassle, Sun electric will usually swap them.

    Helpful Sponsor Ads!





  2. Jags

    Jags Moderate Moderator Staff Member

    Joined:
    Aug 2, 2006
    Messages:
    14,911
    Loc:
    Northern IL
    Are these the type that are daisy chained or micro inverter at each panel?
  3. peakbagger

    peakbagger Minister of Fire

    Joined:
    Jul 11, 2008
    Messages:
    1,604
    Loc:
    Northern NH
    They are standard panels, if the specs match they could use microinverters or they could be daisy chained for a central inverter. Note that when you daisy chain, you have to get the right mix to stay in the inverter voltage range. My older set has 4 panels, two are wired in parallel and then two paralled ones are in series to match a now "orphaned" central inverter.
  4. hilbiliarkiboi

    hilbiliarkiboi Member

    Joined:
    Sep 13, 2012
    Messages:
    160
    Loc:
    HotSprings NatlPark
    Sorry for the bump. Just combing a quiet corner for my first post ever.
    love to learn by lurking alot of bb.
    I need to refresh my research on inverters because i'm wanting a small
    bat backup capable of keeping a refrigerator on about 4-6 hrs plus
    a few hundred watts for lights clocks and settings. Is a 3000 watt inverter enough?
    Also want option to run an alternator ! Solar panels later on. Not a great location for that.
    Any info about where to look or quality equip appreciated.
  5. btuser

    btuser Minister of Fire

    Joined:
    Jan 15, 2009
    Messages:
    2,026
    Loc:
    The island of Rhum Boogie
    You mean like a battery backup or something that would run from a car battery?

    Here's a sizing calculator http://www.invertercalculator.com/ but you need to know your sizing needs.
  6. hilbiliarkiboi

    hilbiliarkiboi Member

    Joined:
    Sep 13, 2012
    Messages:
    160
    Loc:
    HotSprings NatlPark
    (edit) I know that would require using a 12v inverter.

    (edit 2) Thanks for the link. I was confuzed about the max draw at startup
    on refrigerator (surge') @6.5 max amps. I now think 1500 will give
    me enough headroom.
  7. hilbiliarkiboi

    hilbiliarkiboi Member

    Joined:
    Sep 13, 2012
    Messages:
    160
    Loc:
    HotSprings NatlPark
    That was an edit of my 2nd post. it was something like
    Yes, thanks. I ran a small seperate 'critical' system with a few
    lights and receptacles I want to run with inverter power.
    Frequent outages here, and my caretaker network needs
    time to respond. I was thinking an alternator would look
    like solar to an inverter. or would it be a charge controller?

Share This Page