Hi @Roman-Dyzhyk,
For a bit more information see also:
https://www.v2g-evse.com/2018/08/06/department-for-transport-invests-in-v2g-evse/
I sit on the relevant international standards development committees. For this use case (IEC 63110) the committee has specified TCP as a requirement.
Q.E.D?
One “real world” example. How do you perform “over the air” firmware updates using NB-IoT?
After doing some testing, (albeit not here in the UK!) for our use case (electric vehicle charging stations) we’ve come to the conclusion that LTE-M is the way forward for us:
https://www.v2g-evse.com/2018/09/29/what-are-the-top-iot-platform-requirements/
NL and DE are target markets for us, so in the (continuing!) absence of a UK wide LTE-M network testing across the North Sea beckons yet again!
Jim