Exeltech is a manufacturer of PV solar systems for residential and commercial applications. Exeltech offers inverters, solar PV AC modules, and solar AC modules. PV AC module is a special version of grid-tie inverter. Unlike conventional grid-tie inverters, which require many PV panels in series or parallel connection, PV AC modules are permanently attached to a PV panel and produce grid-ready electricity directly. PV AC modules reduce wiring requirements in grid-tie inverter systems by up to 50% or more. Exeltech has been certified by TL 9000.