In the new energy paradigm where end-users can produce their own energy, a prosumer is a person who combines the economic roles of producer and consumer.
Buying and selling of energy (or energy producing ) commodities such as crude oil, coal, natural gas , electrical power etc. It also covers the aspect of management of the movement and delivery of the energy commodities and management of associated risk.
Multiple intelligent actors (or agents) that cooperate coordinate and communicate between each other in pursuit of common goals.
A smart grid is an electrical grid that uses information and communications technology to gather and act on information, such as information about the behaviors of suppliers and consumers, in an automated fashion to improve the efficiency, reliability, economics, and sustainability of the production and distribution of electricity.
Energy Efficiency Improvements
Reduction in the energy used for a given service (heating, lighting, etc.) or level of activity. Is "using less energy to provide the same service".