- good idea for sunny climes!
- i use solar every day to power an AM/FM radio (no batteries or A/C involved!)
- here's an inexpensive panel for small gadgets:
US$10 solar charger
(the units i have cost the same, but power 3-12V and also recharge (2)AAs at the same time! (about 75mW each, but can be cascaded to provide greater wattage)