Alternative Technology Assn Forums

1. 

   Vauban
   Member

   SA sheds loads, Perth has record rain, Sydney record heat. Clausius-Clapeyron tell me to consider some mobile PV that I can extract from a pending hailstorm if needed and push it into the shed.

   The idea is to use the PV for making ice cubes in an electric ice maker. The ice goes into a high-efficiency Esky for food/medicines, etc.

   I believe that per unit off-grid electric power or litre of fuel when the grid is down, making ice plus top-grade insulation is the most efficient way to achieve low air temperatures. Much better than running a diesel generator to power the fridge.

   Commercial ice cube makers draw ca. 200W plus some surge, I imagine.

   I was thinking of putting 2 of the PV panels made by LG that CHOICE recently reviewed, on a trolley with castors. Then add some solar deep-cycle batteries and inverter. What do you think? Is there sun-tracking tech incl. a motor to keep the rig oriented properly through the day?

   Has anybody done this or the like? Advice? Warnings? Tips?

   Thanks

   Posted Saturday 11 Feb 2017 @ 5:43:06 am from IP #
2. 

   megamont
   Member

   Vauban, I have nearly finished a setup on a Box trailer (6' x 4' / 1800mm x 1200mm) with high sides almost identical situation to what you described.
   16mm Ply Sheeting on the walls.
   Colourbond roof with 2 x 265W S/panels installed on top. (room for 2 more S/panels on the sides of the trailer that could be mounted vertically and deployed horizontally. (swing out)

   60 Amp Sun Solar Controller.

   4 x 260Amp hr. AGM batteries.

   The unit is waterproof and mobile.

   I have installed a change over switch and caravan type AC Male 3 pin plug in my Meter Box so I can run the house on batteries though the night and blackouts. (1000Amp hr. Extra batteries to be added)
   PM me for pics if you wish.

   Posted Sunday 12 Feb 2017 @ 9:52:05 pm from IP #

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