What makes rural business in climate friendly technologies so hard to build?

Nancy Wimmer should know why. Thanks to support from Good Energies Foundation she has spent a decade in Bangladesh, a country that has built rural renewable energy businesses like no other. A few highlights of what she has learnt:

1. It requires dogged determination .
2. It requires specialized financing structures.
3. It requires obsession with quality.
4. It requires public sector entrepreneurship.

And if building it is hard , keeping it going is harder.