Optimising a Renewables Based Island Grid and Integrating a Battery Electric Vehicles Concept on the Example of Graciosa Island, Azores Archipelago

MOTIVATION Graciosa, an island of the Azores is to be provided with an electricity generation system based mainly on photovoltaics (PV) and wind energy [1]. This system includes a stationary battery-electric storage and a diesel backup generator and will produce electricity with more than 80 % of demand covered by renewable sources. The most economic sizing of the components will lead to excess energy amounting to about one third of the total electricity produced. Incorporating more flexible consumers will match demand closer to production and reduce overall costs per energy consumed. This paper looks into the possibility of electric vehicles (EV) as additional demanders and an active part of the system.