SECOND LIFE FOR IRIZAR BATTERIES
Through a collaboration with partner Ibil, Irizar is providing a second life for the batteries and the power electronics Irizar produces and installs in its buses. After their useful lives in buses has ended the batteries will be reused as storage elements in the electric vehicle charging stations that Ibil is deploying in Repsol service stations.
Ibil was created in 2009 as the outcome of a collaboration agreement between the EVE, the Basque Energy Entity (Ente Vasco de la Energía) and Repsol with the goal of providing energy and mobility services, creating a charging network for electric vehicles and developing sustainability initiatives.
At Irizar they say that the useful life of batteries can reach 15 years for urban electric buses, because they are charged daily and at high power. After those 15 years the accumulators need to be replaced in order for the vehicle to maintain its original functionality. The end of the first life, however, does not mean that the batteries have lost all their charging capacity. Sustainable reuse in charging station storage applications will be introduced for stabilising energy demands when vehicles are charged at high power. Irizar and Ibil provides the solution with giving batteries a second life installing them in Ibil charging points to store energy to reduce the power needed from the electrical grid, thus bringing down both operation and infrastructure costs. The companies emphasize this makes it possible to deploy high power charging infrastructures, even in places where connecting to the electrical grid is more costly and complex. In addition, with that kind of charging infrastructure using storage back up, distributed photovoltaic power generation can be integrated into the system to generate power locally.
Ibil is developing the largest charging network in Spain together with Repsol. Likewise, Ibil and Red Eléctrica have signed a collaboration agreement to promote integrating ultra-fast charging for electric vehicles into the system. The goal is to promote electric mobility in Spain through developing ultra-fast charging infrastructure and new tools that help the stability of the system in a way that returns power to the grid.