Pyron Solar's 20-kilowatt testinstallation in San DiegoMost concentrating solar installations also swivel to track the sun during the day, which is far more effective than a fixed array.
"Our main testinstallation is at a school in Kent (southeast England) -- where 1, 100 kids have devoted their lives to stamping all over them for the last eight months, " said Kemball-Cook.
Those include a pilot program to test the use of platform barrier doors on the L subway line, and a vow to explore the installation of an automated warning system that would alert train controllers when a person is on the tracks.