Solar roads seem like a very expensive and thus fixed alternative, when we have a big enough expense ahead of us moving HVAC, transportation, manufacturing, etc

Solar roads seem like a very expensive and thus fixed alternative, when we have a big enough expense ahead of us moving HVAC, transportation, manufacturing, etc. to green sources. Keeping solar generation separate is more flexible. It's also worth considering that we may choose to move away from big, expensive, fossil-based roadways to more compact, inexpensive and 'smart road' options.