Stand foundation

Borner foundation (Finished concrete block with aluminium plate)

Sources of supply: https://www.borner.ch/de/produkte/2016-EMobilitaet/2017-ENERGY_BLOCK 

Foundation according to OPI2020 standard (directly compatible with Pico base)

Sources of supply: https://www.swisscharge.ch/produkt/opi-2020-fundament/

Do it yourself foundation

Information about OPI 2020 Standard:

http://opi2020.com