06/08/2009 05:12 am ET | Updated May 25, 2011

High-Speed Solar Train Considered For Arizona

The idea of a high-speed train that runs on solar power is still in its early stage, but the project's creators are pitching the idea to area cities and potential investors.

The idea is to start a train system that connects Tucson and Phoenix in a first phase. In the future it would extend north to Grand Canyon and south to Nogales. The cost for the first phase alone is estimated at $27 billion.