There are those who say that the U.S. needs to focus more on innovation to create new clean energy technologies, rather than relying entirely on existing technologies like solar PV and land-based wind. They are right.
Three years ago, when I started my journey in this industry the only "Holy Grail" I knew about it was in a Monty Python movie. Today, it is difficult to find a clean tech analyst or "green" conference that doesn't wax poetic about "energy storage as the Holy Grail."
Renewable energy sources such as wind and solar continue to emerge and are meeting an increasing percentage of today's electricity demands. Smart grid technology is needed to effectively harness the variable nature of wind and solar energy.