San Francisco Chronicle: At long last, the energy economy is central to local, state, national and global political and social agendas. This is welcome news: It opens to door to addressing meaningfully the linked issues of energy security, global warming and the opportunity to redirect the $700 billion we spend each year on imported fuels instead into building innovative companies and moving into sustainable job growth. Thankfully, both presidential candidates, Sens. Barack Obama and John McCain, are talking …