Printing electricity from sun and heat - the new photovoltaics

Several organizations now demonstrate around 5 percent efficiency with organic PV, near where applications that prioritise cost over footprint can kick in. Spectral efficiency can be better than silicon. Indeed, CEA projected continuing 0.5 percent annual improvement in best recorded organic efficiency and Heliatek’s objective is to overcome the “one Euro per peak watt barrier” with 7-10 percent efficiency and very low costs.