The use of intelligent-agent technology to aggregate wind-energy generation installed at several households and battery storage installed in similarly large number of households is described. This situation creates a virtual generator that can be dispatched on the electricity grid in a similar manner to to centralized generation. The purpose of aggregation is to sell renewable generation to the electricity network and at a price matching its value. Australia and other countries are also considering large-scale deployments of renewable-energy technology, such as solar photovoltaic generation or wind turbines for households. It is observed that changing technology, new market mechanisms, new funding mechanisms, and environmental concerns are making such deployments an attractive proposition. Some deployments are also taking the form of large farms of wind turbines or photovoltaic cells.