Solectria Renewables, LLC, the leading U.S. PV inverter manufacturer, announced today at the Intersolar North America trade show, the introduction of the new SGI 500XT, a 500 kilowatt (kW), 600 VDC inverter. The SGI 500XT is a 208 VAC transformerless, direct to medium voltage, utility-scale inverter. It has the highest inverter efficiency in the industry.