Zest Outdoor Media, the world's first green outdoor asset management company, has set a Guinness World Record for the most extensive installation of solar panels on a single billboard. The record was achieved by combining three 40' x 20' billboards into one 60' x 40' billboard with 84 solar panels on the back, generating 60,000 units of renewable energy per year. Zest Outdoor Media will provide more than 300,000 units of solar power to the railroad over the next five years.