Many if not most of these small scale entrepreneurs are poor with few options and likely no access to alternative livelihoods. They are unlikely to have knowledge of environmentally improved technologies, nor the means to adopt these technologies. The suppliers that do exist may lack access to the latest technologies and expertise, and may lack access to business capital. Often the policy drivers required to create demand for their products and services are not in place, and high levels of poverty and low levels of economic activity severely restrict the potential market demand. Barriers often exist to the adoption of innovative financing mechanisms such as the Energy Service Company (ESCO) model. In many of the countries where notable improvements in public sector capacity have been attained, private sector demand for competent public services and better governance has been a major stimulus to change.