Wonder if they had problems with a Historical Preservation Commission?

Solar Panels on the Paul VI Conference Hall

The Vatican is "the Greenest State in the World". Pope Benedict XVI continues to leave his mark as the "green pope" by installing solar panels on it's facilities thus being one of the largest solar power plants in Europe.

Aside from solar panels, the Vatican is also using methane gases produced by the Vatican horses to fuel his summer cottage! Insert jokes here.