Electrical Energy play a key role in human life, but with the traditional sources there is now general acceptance that the burning of fossil fuels is having a significant influence on the global climate, still purer with the nuclear power, this last leaves behind dangerous wastes for thousands of years and risks contamination of land, air, and water; the catastrophe of Japan is not far. Effective mitigation of climate change will require deep reductions in greenhouse gas emissions and minimize the need of nuclear power; hence, the world energy policy decision states that the objective is to facilitate a change to an ecologically sustainable energy production system. All renewable energy sources such as wind power, photovoltaics energy, Hydropower, biomass, biofuel, geothermal Energy, wave energy, tidal energy, hydrogen and fuel cells are included. The Artificial Intelligence control and optimisation techniques include, but are not limited to, Neural Network, Fuzzy logic, Genetic algorithm, Bee colony and PSO. This special issue will highlight the latest approaches to the topic of wind and renewable energy systems.