What do you do when there's no electricity and you're poor?
In the Philippines they've started generating power with simple plastic bottles:
Litre of Light is an initiative to make solar bottle light in a country where energy prices are high.
In parts of Africa they've leap frogged the development cycle by jumping straight into mobile phone technology. Landlines and universal secure power supplies aren't necessary for telecommunications. This has also enabled many people to run businesses from their mobiles, handling payments electronically rather than having to visit a bank.
The project in the Philippines may point the way to a leap straight into sustainable energy supplies.