Just because you're off the grid doesn't mean you don't have friends to communicate with. If nothing else, you want to get on the Internet to let your compatriots know about the latest breakthrough in lowering the voltage on your Christmas lights. Plus, you want the convenience of charging your phone and laptop wherever you go.
Recently, chemists from Saint Louis University developed a fuel cell that uses sugar and cooking oil byproducts to generate electricity. In the future, consumers may be able to use these types of cells in place of batteries to power anything from cell phones to computers. While the cells are still in development, they have the potential to become a very versatile power source.