I f I'm identified with any renewable energy subject matter, it is hydrogen.   Recently, I was inspired to re-focus on this option because of an e-mail I received from one of my colleagues, asking me to  read this hydrogen article .  I responded to him: ************************** Dear Benny: The key to the hydrogen economy will be the transition, and this article you sent shows a pathway.   A quarter century after I drafted the first hydrogen bill ever created in the Senate, which became the Matsunaga Hydrogen Act, I thought this was the perfect bill. There is more hydrogen in the Universe than all the other elements put together. All stars utilize this gas to create energy. When combusted on Earth, the only products are energy and water. Surely these are clues that hydrogen will be significant for our future. In 1979 while on assignment at the Lawrence Livermore National Laboratory on fusion--which, of course, is another hydrogen option-- I was asked to work in the U.S. Senate .