Things will start out with a practice event which takes place behind closed doors. Afterward, each round will have a single 20 minute practice session, hour long qualifying and 60 kilometer day and dusk races.
Provisional calendar dates
November 3-4 Jerez
TBA (February/March 2019) Paul Ricard
TBA (May) TBA
June 29 Nurburgring
July 20-21 Assen
TBA (September) Silverstone
TBA (September)
BA October 12-13 Algarve
https://www.autosport.com/other/news/135559/teslabased-series-reveals-eightround-calendar
Provisional calendar dates
November 3-4 Jerez
TBA (February/March 2019) Paul Ricard
TBA (May) TBA
June 29 Nurburgring
July 20-21 Assen
TBA (September) Silverstone
TBA (September)
BA October 12-13 Algarve
https://www.autosport.com/other/news/135559/teslabased-series-reveals-eightround-calendar