Features TS4-A-O is the most cost effective way to improve the energy harvest of your under performing systems. TS4-A-O enables you to upgrade an existing installation to improve energy harvest and lower O&M costs. Go back to your under performing sites, and dramatically increase the energy harvest without making major changes to your existing array. Get immediate performance improvement because weak panels no longer pull down the production of the entire system. Recover on average 36% of power lost to partial shading. Module-level monitoring allows you to remotely detect and diagnose problems in the array, then determine it if is worth repairing.