The key may be economically transporting the waste plastic as feedstock. Guess it may be much more expensive. Even assuming 5 cents/ kwh of solar this makes eco

The key may be economically transporting the waste plastic as feedstock. Guess it may be much more expensive. Even assuming 5 cents/ kwh of solar this makes economic sense as storage system otherwise. I presume in the future we have autonomous robots that clean the cities of plastic and feed it to such machines which run on surplus renewable energy