Solar PV inverter company Fronius recently announced that a line of their grid-tied inverters have received Underwriter Laboratory (UL) listing. This affects their IG 4000, IG 5100 and IG 4500-LV (208V) inverters. These inverters have a power output of 4000 W, 5100 W and 4500 W respectively, and are expected on the market in January of next year. The entire Fronius IG series now covers power ranges from 2.0 to 5.1 kW. The units come standard with a LCD display where the installer and end-user can view and record over 20 parameters pertaining to inverter and system operation. Optional remote data communications and data logging features can be added via Plug-n-Play cards to transform IG inverters into a sophisticated data acquisition system and weather station.