In November 2009 an initiative was put in place by the author to transform the community of Sanlúcar de Barrameda (Cadix, Spain) into a 100% renewable city. This ambitious project started with a study -“A 100% Renewable Energy Plan for Sanlucar”- which had as its main purpose to analyze the feasibility of this endeavor by evaluating the town´s natural resources and as a result the potential Renewable Energy Systems that could be used. This was made under the umbrella of providing a solution, both economic and environmental, to the town´s problems. Even though important data was gathered and some conclusions drawn, the study was left unfinished, and the objective was not accomplished becoming today a preliminary piece of work. The objective of the present project; “A new future for Sanlucar” is to complete and expand the study presented in semester 8 (2010) as part of the Master of Sustainable Energy Planning & Management syllabus, to serve the Town Hall of Sanlúcar de Barrameda build a new future for the municipality.