The FIA has taken then next step in the development of its Formula E Championship with the announcement of tenders for both battery and chassis supply.

The governing body is keen to move beyond the need for drivers to have to use two cars per race - with an ungainly mid-race pit-stop to switch between machines still a feature moving into season two - and confirmed that it is now seeking applicants, via the Formula E Committee and the Electric and New Energy Championships Commission, to identify a single provider for batteries and a single chassis provider, both of which will become active from season five, covering 2018-19. F1 giant Williams currently provides the series' batteries, with Dallara - now back in the top flight with Haas - building the chassis. Both are eligible to apply for the new tenders.

"Opening up the tender for the season five battery supply will inspire further development in the key element of electric car technology," series CEO Alejandro Agag told the official Formula E website, "The new battery will be more powerful and have a longer range than the current unit [and] this is exactly the type of technological step change that Formula E was created to inspire. By keeping with a single supplier, we will also ensure that costs are kept under control and create a solid foundation for the continued growth of the series as a global entertainment brand."

Candidates for both tenders will be presented for selection at the next World Motor Sport Council following an 8 June deadline for applications.