What is the technology being developed on the ground?

On Saturday, October 9th, 2010, I attended an event "A Morning with Microfinance Leaders," I learned about an organization called EarthSpark International. The founder Dan Schnitzer presented a video about the affects of dirty energy. He showed an experiment in Haiti that tested the cooking time of a locally designed stove. The stov was proven to be more efficients then the popoular stoves currently being used in Haiti. Earth Spark International aims to address the "energy poverty" that plagues BOP communities like those in Haiti. Part of his orgnanization's mission is to introduce techonologies to address the energy needs of the very poor. This morning, along with talk about technologies engineered in China and India, he also took time to discuss, technology engineered locally. The oven described early was developed and produced right in Haiti. He beleived in investing and promoting local innovation. I believe to be an interesting prospect for engaging BOP markets. But what is the best way to engage local entrepreneuers that is sustainable on both the local and global level?