CoExist: It's easy to get a cheap solar panel in Uganda. You just pay a small deposit via a mobile phone and you can take home the equipment immediately. You install the system yourself and pay off the lease as if you were buying pay-as-you-go phone credit.
This simplicity explains why San Francisco-based Fenix International has signed up 65,000 customers for its ReadySet battery and PV system in three years. By partnering with the country's leading phone operator, MTN, it's able to piggyback on a mature...