Every year his students train outside using power tools to build 10 to 15 sheds, gazebos and garages mostly for nonprofit organizations, Allewelt said.

“We used the idea as a classroom project,” he said. “The kids and I did a bunch of research.”

They learned mobile arrays are in extensive use on Indian reservations, said Allewelt, explaining how his students took the research to prepare construction designs and a list of key components.

“They took it and ran with it,” he added.

The mobile array was developed at no cost to the district, according to Michele Barrett, director of the Center for Careers and Technology. She added that PPG Industries in Carlisle donated the three specially made solar panels and gave the district a $5,830 grant to purchase the components for the mobile array trailer.

“It took a while for the panels to be made,” Barrett said. “We did not get everything up and running until last spring.”

Because it was completed late last school year, the array had limited use during the 2013-14 school year, Allewelt said. This school year, the trailer is being wheeled out of the carpentry shop every school day.