Rollout of freight CNG/biogas rapid beyond plausibility - it requires two major transitions and infrastructure deployment (or actually three - electricity, hydrogen and natural gas) as well as a supportive policy environment, which is not there in the short term. So I suggest either
adding a growth constraint to limit the immediate deployment of new tech
adding a cost for charging infrastructure (though this could require equal treatment across all fuels)
??
The issue may be somewhat resolved because we will constrain biogas deployment to a linear trajectory - current ramp up is too high.
Rollout of freight CNG/biogas rapid beyond plausibility - it requires two major transitions and infrastructure deployment (or actually three - electricity, hydrogen and natural gas) as well as a supportive policy environment, which is not there in the short term. So I suggest either