HelioVolt Corporation was a privately held solar energy company based in Austin, Texas that suspended operations in 2014. The company manufactured photovoltaic (PV) solar modules using a thin film semiconductor process based on copper indium gallium selenide (CIGS) to produce CIGS solar cells. HelioVolt manufactured these thin film modules for commercial rooftop, utility-scale ground mount, residential, building-integrated photovoltaics (BIPV) and custom installations. The company raised over $230 million in investments, including over $80 million by SK Group.