This innovative pilot project, led by Acciona Energía, marks the inaugural implementation of Vehicle-to-Grid (V2G) technology on an industrial scale in our country

The technological center, CIRCE, is participating as a technological partner in the Vehicle to Grid (V2G) Balearic Islands project, led by Acciona Energía, which is becoming Spain’s first bidirectional electric vehicle charging network. This system allows for the retrieval of electricity stored in vehicle batteries for self-consumption or to inject it back into the electrical grid.

This innovation pilot project was inaugurated yesterday in Mallorca, alongside the Balearic Government, and signifies the first-ever industrial-scale implementation of V2G technology in Spain, with sufficient scale to establish consumer behavior and usage patterns. The insights drawn from this project will contribute to the technological and economic maturation of this novel energy service model. CIRCE has contributed its knowledge and experience in power electronics and bidirectional charging as a technological partner and will test six prototypes of chargers based on the technology that is poised to be the future.

The technological center provides its expertise in bidirectional charging and supplies the project with the necessary power electronics to advance the implementation of this energy model

Specifically, the technology developed by CIRCE is based on silicon carbide (SiC) semiconductors with high-frequency resonant systems, which has enabled the creation of chargers three times smaller than a conventional one. With this reduction in volume and weight, this development contributes to sustainability and design economy, primarily due to the decrease in critical metal elements.

These chargers are capable of delivering power that is currently not available in the market. Their power ranges from 25 to 200 kW, enabling the challenge of decarbonizing companies while integrating demand into a decentralized electrical system based on renewable energy.

Bidirectional charging (V2G) redefines the concept of an automobile, transforming it from a mere convenient mode of transportation parked in garages to also serving as an alternative energy source for homes or industries. As a result, both a company and an energy community can store energy in multiple electric vehicles if they have renewable self-consumption generation when electricity market prices are lower, and then deliver it for their own consumption or sell it to the grid during the evening hours, when electricity market prices are higher, thus offsetting energy costs and the decrease in photovoltaic generation during periods of reduced solar irradiation.