http://www.azuri-technologies.com/what-we-do

Azuri has used mobile technology to turn a development challenge into a business challenge through its Azuri solar home systems, which allow users to pay for solar power on a pay-as-you-go basis, just like they do for their phones and kerosene. This provides clean, safe renewable power to families at about half the cost of the kerosene it replaces, without the need for any government subsidies or tariffs. Azuri’s HQ is in Cambridge, United Kingdom, with staff based in Kenya, Uganda, Ghana, Ethiopia and Tanzania and presence in 11 countries across sub Saharan Africa.