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Click here for the Grey Nomads website -> The Grey Nomads Forum -> Solar Power -> Solar requirements to add portable 12v/240v 20l fridge/freezer To rig
Post Info TOPIC: Solar requirements to add portable 12v/240v 20l fridge/freezer To rig
Aussiefolk


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Solar requirements to add portable 12v/240v 20l fridge/freezer To rig
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Im thinking of adding a 20l fridge/freezer to supplement my inbuilt 12v/240v compressor fridge in my Sprinter RV. 

 

My power source is mainly solar - 2 x 80 fixed panels on my roof and a 120 portable blanket - or 240v when available. I have one house battery.  Im thinking this wouldnt be adequate to run an additional fridge/freezer. 

How can I adapt my current power system to accomodate this please?

 

I would value the thoughts of other GNs

 

(Discussions with fellow travellers have given me much food for thought. Engel comes highly recommended but Im told it runs constantly and that a WAECO runs intermittently thus using less power. Your thoughts on this would be helpful too please.)



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Aussiefolk


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Oops. Seems Ive posted this twice. Sorry (thought Id lost it so re submitted )

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Whenarewethere


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Have a look at this thread on power usage, it might help with a starting point with energy usage. 20 to 40 litre fridges will have basically the same energy consumption.

https://thegreynomads.activeboard.com/t65059593/extra-fridge-insulation-wattage-test/



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Procrastination, mankind's greatest labour saving device!

50L custom fuel rack 6x20W 100/20mppt 4x26Ah gel 28L super insulated fridge TPMS 3 ARB compressors heatsink fan cooled 4L tank aftercooler Air/water OCD cleaning 4 stage car acoustic insulation.
Aussiefolk


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Oh Wow Whenarewethere. Thats an amazingly comprehensive post. Thank you so much.

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Peter_n_Margaret


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Both Engel and Waeco run via thermostats, so both will run intermittently and the power consumption will be depending on the fridge temperature set and the ambient temperature where the fridge is kept.
What are your other power needs?
Cheers,
Peter

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OKA196, 4x4 'C' Class, DIY, self contained motorhome. 960W of solar, 400Ah of AGMs, 310L water, 280L fuel. https://www.oka4wd.com/forum/members-vehicles-public/569-oka196-xt-motorhome
 

 
Whenarewethere


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As said above.

 

Re the actual fridge, buy the brand that fits the space.

I will add how much fridge capacity do you really need. Our needs are fresh veggies, yoghurt, cheese, a few beers, we are not big meat eaters, We use powered milk to save fridge space.



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Procrastination, mankind's greatest labour saving device!

50L custom fuel rack 6x20W 100/20mppt 4x26Ah gel 28L super insulated fridge TPMS 3 ARB compressors heatsink fan cooled 4L tank aftercooler Air/water OCD cleaning 4 stage car acoustic insulation.
Whenarewethere


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Aussiefolk wrote:

Oh Wow Whenarewethere. Thats an amazingly comprehensive post. Thank you so much.

 I have updated the above thread with a test I did ages ago freezing 10.5kg of ice.



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Procrastination, mankind's greatest labour saving device!

50L custom fuel rack 6x20W 100/20mppt 4x26Ah gel 28L super insulated fridge TPMS 3 ARB compressors heatsink fan cooled 4L tank aftercooler Air/water OCD cleaning 4 stage car acoustic insulation.
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