I think the only way to electrify trucks to a degree that it makes a difference is through legislation.
Electric trucks seem to me to have downsides that make them unprofitable compared to diesel, unless legislation shift the economy to favor electric.
The weight of the battery makes it so a truck can carry less, and it will inevitably have shorter range than a diesel truck.
So an electric truck can carry less weight for shorter distances, and it's probably more expensive to make and buy because of the battery.
I think it will happen eventually, but I'm not aware that anything serious is done in EU to help it along.