[hackerspaces] Raspberry Pi - $25 ARM based PC

john arclight arclight at gmail.com
Thu May 5 18:10:08 CEST 2011

We've done several solar projects. You need to multiply the wattage of your
loads by the number of hours each is expected to be on.

For the panels, figure on 2-5 sun hours per day, depending on location and
climate. So a 40w kiosk open 8 hours per day would probably need in the
neighborhood of 100-160w in panels with a good 4 sun-hours daily. This is
doable on a budget.

On May 5, 2011 9:01 AM, "Chris Weiss" <cweiss at gmail.com> wrote:
> On Thu, May 5, 2011 at 10:11 AM, Jon Spriggs <jon at sprig.gs> wrote:
>> I was just reminded of an educational outdoor kiosk project for a
>> local non-profit that got scrapped due to concerns over running power
>> to where they'd need it.  This with a 15-17" LED lit lcd (20W max)
>> could easily be solar powered, and greatly simplify the cabinet to
>> install it all in as it wouldn't need active cooling, thus making it
>> easier to weatherproof.
>> A great example of this is the Joggler, AKA an OpenPeak frame, running
>> Linux, and (was) selling at £50 in the UK. Went like hot cakes, and
>> got LOADS of people interested in doing stuff with them... these boxes
>> are still selling on EBay for around £50-70, with or without mods.
> neat idea, but kinda small for a kiosk. Even a 10" I think would be
> too small. 14" would be minimum, and the easier to replace components
> the better as it will be outdoors and who knows when mother nature
> will drop a tree on it.
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