Hydrogen fuel (gray) is often about $8-10/kg, which is about an 80% increase in costs per mile over diesel. Green hydrogen is like $14/kg.
Additionally, agencies are experiencing vapor losses of fuel, which results in an overall increase in fuel costs. These losses can occur in different circumstances, but often occur after fueling when the gaseous fuel left in the hose (that cannot be returned to the liquid tank) evaporates. One agency reported double the cost of fuel due to these losses.
Anyway, yeah I think the argument in the article was that this waste heat isn't "free" because you're paying such a premium for it via the fuel costs.
Additionally, agencies are experiencing vapor losses of fuel, which results in an overall increase in fuel costs. These losses can occur in different circumstances, but often occur after fueling when the gaseous fuel left in the hose (that cannot be returned to the liquid tank) evaporates. One agency reported double the cost of fuel due to these losses.
Anyway, yeah I think the argument in the article was that this waste heat isn't "free" because you're paying such a premium for it via the fuel costs.