On the smallest island in the Canaries Archipelago, Cap Ingelec undertook an electrical simulation mission for the Spanish state. The objective was to verify the technical feasability for the construction of a power plant consisting of a wind generator farm with five wind turbines (2.3MW), a 4-turbine hydroelectric power station (2.8MW) and a pumping station for energy reserves (6MW). It was a major challenge to model the electrical network, to ensure quality electrical production conforming to the EN 50160 standard and to finally achieve an operational electrical network. It illustrates Cap Ingelec's new "upstream" professions regarding auditing, advising, development and innovation linking renewable energies and energy performance. This pioneering project in renewable energy will enable the island's 11 000 inhabitants to be autonomous.