Hsin-Yi Chien
Lina Giraldo

The Door

A voice-based information service that helps energy entrepreneurs in developing countries launch their business, solve problems and find about new opportunities all with their mobile phone


Solar Design for Development

The Door

The Door is a dual voice application for mobile and web information service that is designed to help new energy entrepreneurs in developing countries navigate early and ongoing business challenges and opportunities. The service allows entrepreneurs to access concrete information about business related subjects via voice content from their cell phones, and ask questions and receive answers from a network of experts through a built-in voice mail service. Service is organized by country, meaning that users in, for example, Tanzania would have access to information that pertains only to Tanzania.

Content that is available through the voice application is also located in a text format on the Door’s web page.


Amy Chien
Chris Neidl
Lina Maria Giraldo