OpenV2G - an open source project implementing the coding functionality of the ISO IEC 15118 and also the DIN 70121 vehicle to grid (V2G) communication interface.
The OpenV2G stack provides databinder functionality allowing you to serialize C structs to V2G compliant (EXI) messages and vice-versa.
Note: the V2G implementation for ISO 15118-20:2022 will not be available as Open Source.
If you are interested in a commercial license solution, please contact us via exi.ct@siemens.com.