Our solar setup

Discussion in 'Solar Power' started by Elias, Dec 3, 2017.

  1. Elias

    Elias Funster

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    We are now a couple of days into our Spain trip & I thought I'd share how were getting on with our solar kit

    The setup is:
    • x1 250w 36v panel
    • mppt 250 voltronic solar controller & lcd computer.
    • 220 ah hankook battery bank (x2 110ah)
    So far I have seen a peak of 11a charge but we were on the move at the time & the sky was a bit patchy.

    We are hoping to not have to plug into mains to charge the battery's, the bank is at about 70 percent full at the moment & the weather is forecast for 2 full days of clear sky's. I am hoping that this will get the batterys to 100 percent, we will just have to take it easy on what we are using at the moment. (I better add that we did not start our trip with fully charged battery's)

    We usually have the stereo on when we park up, I think that draws around 5amps, we have only charged the laptop twice from the battery's which has a 19v transformer, not sure of the amount of drain from this? And finally the 5.2a water pump which gets used in the morning for the kettle & washing up.

    As I write this we are getting 6.2a from the panels & only using the lighting (I'm being a tight arse) we will be heading to Salou in the next hour, with clear sky's all the way I'm hoping for a good charge.
     

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  2. Jim

    Jim Ringleader

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    Why is it that men spend hours looking at those little displays? Or is it just me :)
     

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  3. Snowbird

    Snowbird Funster Life Member

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    Its not just you Jim. I think it helps satisfy the hunter gatherer instinct.
     
  4. Elias

    Elias Funster

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    I just wish it had more buttons!
     
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  5. mitzimad

    mitzimad Funster

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    I only look at anything if it's stopped working if the lights work im happy
     
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  6. Elias

    Elias Funster

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    We are on our second day at this site just outside of Salou & it looks like the solar panel isn't working aswell as I hoped.. also it seems that I had let the batterys discharge alot more Than I originally thought, I think another couple of hours on mains they should be fully recharged.

    Anyway we are currently getting 6a from the panels, the van is on flat ground & I have fixed the panel flat to the roof. I think next time i will fix the panel to a bracket so that I can angle them towards the sun.

    I will wait until the batterys are fully charged and will see if the panel can keep up with our power usage over the next couple of weeks.
     
  7. manda3000gt

    manda3000gt Funster

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    I doubt your radio will be using 5amps, on our battery monitor usage goes up by about 5amps when we turn on 32” TV, Sky box & Soundbar
     
  8. Lenny HB

    Lenny HB Funster

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    Depends on the unit our Clarion takes 2 amps, Pioneer double Din units 6 amps.
     
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  9. Elias

    Elias Funster

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    It's a pioneer single din stereo, we had been blasting it out when working on the van so I can imagine it's around the 5amp mark. Just had a look at the manual, the maximum current consumption is 10amp.

    The battery's are now fully charged, it took around 12 hours on mains and a couple through the panel. Tried to get the most out of the sun yesterday.....
     

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  10. Lenny HB

    Lenny HB Funster

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    Yes probably does, the double DIN ones have a 10 amp max and nominally run at 6 amp.
     
  11. Elias

    Elias Funster

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    The updates are coming thick and fast today! As I now have a full charge I can determine how many amps each appliance uses from the votronic panel - the flashing sun indicates a full charge & the input amperage changes depending on the appliance request..

    So this is obviously very rough but here's my usage:

    Waeco 21l fridge on first use: 5.5amp
    Pioneer stereo using aux: 3amp
    19v laptop charger: 1.4amp
    Mini rig speaker charger 5v: 0.3 amp
    Phone charger: 0.8amp

    Once the phone, laptop and speaker is charged I can run the fridge from the solar which is currently bringing in 7-8amps.
     
  12. manda3000gt

    manda3000gt Funster

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    We must have a very economical TV Sky box & soundbar :D
     
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