The solar power systems located on the rooftops of eight Montgomery County Schools were made possible through a solar power purchase agreement that requires no upfront costs from the school district. SunEdison (News - Alert) constructed, owns, operates and maintains these systems hosted by the school district. In return, the school system will purchase the energy produced to offset their demand from the grid at or below retail rates for twenty years.
(They never miss an opportunity to hold a media event, do they?)
(Perhaps some readers can comment on whether this is a "good deal" for the school system.)