Low Concentrated Photovoltaics for III-V Solar Cells

Concentrating PV offers a route to continued reduction in the levelized cost of electricity (LCOE) of photovoltaics while simultaneously offering increases in efficiency. In addition to the conventional routes to cost reductions for high concentration PV of increasing efficiency and re-using substrates, we show (1) increased growth rates, which have shown comparable material quality to conventional growth rages enable reduction of growth costs; (2) there is substantial room for cost reductions in the Ge wafers as production volume increases; (3) reductions in wafer and growth costs provide an additional path to lower LCOE through low concentration.