2 x 200W Solar Panels - What Regulator?

Discussion in 'Motorhome Chat' started by StitchUp, Sep 30, 2012.

  1. StitchUp

    StitchUp Read Only Funster

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    Other than a couple of trips away with The Funsters which we thoroughly enjoyed, this Summer was very much a non-event for us :Sad:

    Anyway, a couple of months back I purchased 2 x 200W solar panels and I have all the fitting stuf I need EXCEPT the regulator.

    Can anyone recommend a good regulator suitable for 400W of power?

    Cheers

    John
     
  2. Techno

    Techno Funster Life Member

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  3. vwalan

    vwalan Funster

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  4. pappajohn

    pappajohn Funster Life Member

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    I would go for the MPPT which Andy (techno100) linked to....far superior to the PWM ones
     
  5. vwalan

    vwalan Funster

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    i wouldnt but i might buy another panel with the hundred quid difference.you could buy a 80w panel and a smaller reg for hundred quid .
     
  6. pappajohn

    pappajohn Funster Life Member

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    you get what you pay for Alan.

    would you buy a car with drum brakes all round and no power steering ?

    PWM is so 'last year' mate :Laughing:
     
  7. Techno

    Techno Funster Life Member

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    £37 for summat that cost £2 in China
    OR
    £149 or less for summat made in China that would cost double that via a dealer here.
    If I'd invested in 400watts I wouldn't use a tupeny hapeny unit that is half inch thick :Doh:
    Also I've looked on the back of that 30amp unit and its clearly marked 300watt max

    [​IMG]
    [​IMG]
     
    Last edited: Sep 30, 2012
  8. vwalan

    vwalan Funster

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    well mine arent . and since when as 300wat been 30amp.
    i have heard of problems with mppt regs even having to reboard or do something to them .
    i have used these regs alot and never had a problem .
    same goes with do you have mono or poly panels . having had both i cant tell the differance . i have italian poly and indian bp .panels all poly at the moment . have had mono . have some on my sons camper . all work . i just find that the price of the mppt is excesive.
    pays your money takes your chance. good job we all think differently . no hard feelings .
     
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  9. Techno

    Techno Funster Life Member

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    It's a good basic reg for a single panel and indeed I got it from the same seller with an 80 watt unit.
    As for mono and poly I've tried them side by side here and a 100 watt poly just about matches an 80 watt mono on a bright day, less favourable in not so sunny weather.

    As for the accuracy of their regulator? they spell voltage voiltage and solar sloar
     
    Last edited: Sep 30, 2012
  10. vwalan

    vwalan Funster

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    hi pappa ,yes i would and do . nice vw beetle . or early type 3 notchback .ideal . i have never had a problem with drum brakes or in fact power steering or lack of . my lt hasnt got power steering . or any of the vw vans i have had . .mind handy on the big trucks .
     
  11. pappajohn

    pappajohn Funster Life Member

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    as i said Andy, you get what you pay for.

    this is my controller (not bought by me i might add) and cost around £400 controlling a single (for now) 170w panel


    Blue sky
     
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  12. philk

    philk

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    solar and regs

    As a slight aside,

    I can buy a complete set up for a house at £2500, cost to importer. Are the panels the same i.e. useable in leisure terms or are they different?

    Phil
     
  13. Techno

    Techno Funster Life Member

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    Higher voltage
     
  14. philk

    philk

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    cheers Andy
     
  15. Techno

    Techno Funster Life Member

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  16. vwalan

    vwalan Funster

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    looking on my bp panel specs an 80watt mono puts out 4.7amp . the poly puts out 4.5 amp.
    not alot of difference really.
    but these days lots of panels are so cheap .dont know why every camper hasnt got a roof full . wonder how cheap they will get to. almost give away prices these days and still dropping .
     
  17. Techno

    Techno Funster Life Member

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    Last edited: Sep 30, 2012
  18. vwalan

    vwalan Funster

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    may be right . i must say i hardly really see the difference . mind as i say i have poly on the trailer very rarely have a shortage of power .
    but arent the prices dropping .
    my first mono panels were over 400 quid . later paid 200 for the first three poly in morocco thought it was cheap.
    later paid less for the bp panels here in cornwall . now they are so cheap its a joke .
    my son uses the mono on his van .
    i used to bring panels back from morocco . later it was better to buy here or direct .
    now panels have dried up a bit in morocco .most have mains leccy in their houses .
    be interesting to see how cheap they will go.
     
  19. Techno

    Techno Funster Life Member

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    Yes the prices have fallen the last two winters and at the lowest ever now
    The first panels I fitted for a customer just over a year ago where £149 each and the same from the same seller are now £74.95 Both of those are September prices
     
  20. vwalan

    vwalan Funster

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    used to help pay the diesel cost going away at one time. wish battery prices could come down an equivalent price . be nice.
    just looked the first mono panels i bought were shell solara made in hamburg . mind its hard to read the label now . i have one by the garage use it as a battery charger.
     
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