Somehow I found this an interesting sight to photograph. And I like the term Shednet.So the first component is tested: I can get a system running there complete with network. Now to find some time to set up the PC and a weather station and measure temperature and humidity in the shed.
Update 2010-08-22: I remembered why I originally got the idea to test a PC in the shed: to test a weather-station in the shed as a preparation for doing something again for project sundial. The "powered by alternative energy" part of that project isn't going to be implemented: solar panels would be really expensive but something really low-power with Linux in a (semi-)outdoor housing would work nicely for a weather station and ntp server.