Has anyone powered the S1 in unconventional ways?

Currently, the only way I have seen to do it is to use a computer PSU. I'm wondering about the use of a different kind of power converter for cases when you want to power an army of S1's. The overall goal is to reduce the price for each S1, which is currently the cost for the S1 plus a PSU. So far, it seems to me that it is cheaper to buy a 500 or 600 watt PSU for each one, rather than a 1200 watt PSU that can run two of them.

So I'm thinking of a situation where someone with electrician education has set up a separate line from the building main and then converted it accordingly and branched it to each S1. My understanding is that the S1 requires six 12 volt power lines and six ground lines. This sounds like it would not be too difficult to do and would be cheaper per S1, assuming you have over 20.