You could generate some power just from condensation from the ambient air
http://revolution-green.com/2013/10/04/new-way-generate-electricity/ (http://revolution-green.com/2013/10/04/new-way-generate-electricity/)
"rediscovering" as a new way for electricity generation ?
http://www.rexresearch.com/fog/US4206396A.pdf (http://www.rexresearch.com/fog/US4206396A.pdf)
Sincerely
CdL