Advanced energy? Permalink Submitted by Kurt C. Koehler (not verified) on Mon, 07/22/2013 - 11:24. Instead of Clean Tech, how about Advanced Energy or Basic Energy. In the transportation industry, CNG is considered a bridge fuel to hydrogen. Hydrogen is both more advanced then burning coal and is chemically much more simple then cracking long chains of hydrocarbons to make gasoline. New Energy or Next Generation Energy also come to mind.