Could it be time to take solar energy seriously again?

In the face of steeply rising oil prices and political turmoil in the Middle East, there's new urgency about finding a solution to our uncertain energy future. Could it be time to take solar energy seriously again? Breakthroughs in new materials and ingenious designs for solar collectors are transforming the technology into a vastly cheaper, more efficient alternative. NOVA presents the latest thinking from solar enthusiasts and skeptics as it investigates these cutting-edge research developments. The film introduces viewers to the scientists and businesspeople who are racing to make solar power practical - for lighting and heating and for running power plants.