The Autostrada del Brennero SpA,home of the A22 motorway, won in the category of Operations for successfully experimenting with eco-friendly, noise reducing sound barriers along the 315 km (196 mi) route. The A22 motorway  collaborated with the community of Isera to erect the first solar-powered noise protection wall in Italy. The wall’s soundproofing protects the towns and communities located near the southbound stretch of the motorway, measuring 1067 m (3500 ft) long and 5.6 m (just over 18 ft) tall. The surface accommodates 3944 photovoltaic panels, which help to generate electrical power. The photovoltaic plant actively contributes to maintaining air quality and helps to reduce the greenhouse effect, and ultimately reduces global warming. The A22 motorway continues to move towards erecting sound-absorbing noise barriers wherever possible, equipped with photovoltaic panels.