How PV grid-tie inverters can zap utility power factor

Photovoltaics World: "The rush to harness energy from the sun to make electricity has inevitably fueled the development of large industrial-grade grid-tie inverters (GTI) that convert DC from photovoltaic (PV) panels into AC power for commercial use. Compared to their residential forerunners that generated only a few kilowatts (kW) of power, the mammoth systems of today are designed to put out upwards of 100kW. While these super-sized powerhouses can dramatically lessen reliance on utility power, there is something else they do that may surprise you."