Catalyst for change to solar Transportation is the catalyst for changing energy systems. In history, people– ◾Paddled canoes, then built water wheels. ◾Sailed boats, then built windmills. ◾Rode horses, then harnessed them to plows. ◾In the 1860s, railroads changed energy from biofuels to fossil fuels. Solar Personal Rapid Transit will make solar & energy storage affordable.