Alternative energy
From low tech network
gel cells
12 volt gel cell charger plans
Thermoelectrical generators
Small heat powered electrical generators that can be attached for example to a wood burner. They dont produce a lot of power but could be useful for electronics stuff
- thermoelectrical generator wikipedia article
- thermalforce.de site selling them
- video of TEG
Other stuff
Power over ethernet would be usefull for data radio projects
