BMW is advancing its charging technology plans, with a new collaboration alongside key automakers and technology firms to develop a “FastCharge” system capable of hitting 450 kW.

The joint consortium, joined by names such as Porsche, Allegro, and Siemens, among others, are conducting joint research on improving charging rates using existing infrastructure at a higher voltage and amps. The expectation is to produce a 15-minute charge for electric cars.

Other research is focusing on the physical limits of its charging equipment such as plugs and cables to withstand such power, roughly three times the charging capacity of today’s stations.

“The collaborative project studies all aspects of fast charging in practical application, aiming to introduce and manufacture the required technologies on an industrial scale,” said Ford in a statement. “This is why, alongside analyzing potential capacity increases in the charging process, the project also investigates the prerequisites and processes for the operation of ultrafast charging systems, including an automated registration and billing process for customers.”

The research project was made possible with a $9.2 million (€7.8 million) grant by the German Federal Ministry of Transport and Digital Infrastructure, with oversight from the National Hydrogen and Fuel Cell Technology Organization (NOW).

The 450-kW charge rates mark a substantial upgrade over 350 kW, the capacity for Ford’s existing joint electric car charging network with BMW, Mercedes, Ford, and Volkswagen. Called Ionity, this network is currently under development in Europe with plans to introduce 400 charging stations throughout 18 countries with 20 due by the end of the year.

No word yet on when FastCharge will be released to the public.