YOu are absolutely correct. If these technologies made current economic sense than they would be implemented without a second thought.
IMHO the United States needs to make itself less dependent on imported energy. And that means we need to move away from oil. We have the wealth and technology to become an extremely efficient economy and using renewable energy that is available in abundance in our own country.
It is not as if the United States has shied away from creating market incentives in the past. For the sake of national security, this seems like an option that would only be upsetting the oilmen.
Someone has to pay for all these grand schemes.
If they are truly economical, they will happen by themselves without government intervention due to simple self interest.