Ever wondered how solar panels work? Agricenter is offering a Solar Tour for the general public on June 21, 2016, at 10:00 a.m. Call Tim Roberts at 901-435-7109 to reserve your spot. Or if you have a group of 25 or more, call for special scheduling. Meet Tim at Arrowhead Nursery at 7466 Smythe Farm Rd., Memphis, TN 38120.