They don't plan on making the batteries themselves AFAIK:
Two Gigafactories building batteries planned in Europe. I have this info from a radio broadcast I randomly caught in my car. These are not Tesla factories. They call themselves Gigafactories.
Comparable in size to Tesla in Nevada newcomers Freyr in Norway and Northvolt in Sweden are the only two battery cell factories planned in Europe. There are other battery factories planned - but they assemble batteries from cells they buy from existing producers. These new factories will make the actual cells needed.
Northvolt has completed it's first equity capital raise for their factory in Skellefteå. Volkswagen and BMW are among their investors.
The Norwegian startup Freyr is planning to set up battery cell factories in the gigawatt range. The first plant should be located in Rana, Norway and greater plans for a “Nordic Battery Belt” with at least ten plants are in the pipeline.
Battery making startup Freyr plans belt of Gigafactories - electrive.com
Freyr have announced plans for a first factory in Mo i Rana.
SINTEF partner announces plans to build a battery cell giga-factory in Norway - SINTEF
The local government in Mo i Rana has prioritized this project:
Full sal da Freyr presenterte sine planer for batterifabrikk og vindmøllepark på Helgeland
Freyr secures €7.25 million investment from EIT InnoEnergy to build a 32 GWh battery cell production facility in Norway
FREYR secures €7.25 million investment from EIT InnoEnergy to build a 32 GWh battery cell production facility in Norway
In the Radio interview Freyr gründer
Torstein Dale Sjøtveit - Wikipedia said that Northvolt and Freyr wasn't competitors in the traditional sense. The potential market for battery cells is so huge they will complement each other and develop a world class battery production environment in Scandinavia.
Torstein Dale Sjøtveit estimated the market to be 400 GWh or enough to supply 6 mill cars per year. And both factories plan to start with 16GWh capacity with room to expand.