WOODBRIDGE >> A 5kW solar array was installed at the Woodbridge Town Library recently, at no cost to the town.

The photovoltaic panels were earned through the Woodbridge Solar Challenge, a 2015 campaign to help residents go green.

“This program was a win-win for Woodbridge. Residents learned more about solar, many took advantage of the program, and the town earned free solar panels,” said First Selectman Ellen Scalettar.

The town’s Ad Hoc Energy Advisory Task Force sponsored the challenge in partnership with CT Solar Challenge and vendor Aegis Solar.

The program offered discount pricing on solar installations to town residents and included several workshops where residents learned how and why to go solar.

Aegis Solar donated the 5kW array to the town based upon the aggregate amount of solar installed through the program.

The task force’s goal was to double the number of Woodbridge homes with solar. In the three years before the challenge, 15 homes installed solar.

During the challenge, there were 58 residential solar installations, nearly four times the goal.