Was Ki-moon's "solar" car actually powered by fossil fuels?

Inner City Press: Investigative Reporting from the United Nations

UNITED NATIONS, September 12 -- Surrounded by doubts about diplomatic and management failures, UN Secretary-General Ban Ki-moon on September 12 took his short drive to work in what was called a solar car. Inner City Press interviewed the car's driver and inventor, Louis Palmer, who said that there had been two or three gasoline-powered cars of security accompanying Mr. Ban. Palmer also said that the ride was not in fact fueled the sun. Rather, the car had been plugged in to "the wall" overnight. And how is that electricity made? Skeptics were sensing greenhouse gasses.