what is a pv
Photovoltaics (PV) is the name of a method of converting solar energy into direct current electricity using semiconducting materials that exhibit the photovoltaic effect, a phenomenon commonly studied in physics, photochemistry and electrochemistry.ith current technology, photovoltaics recoups the energy needed to manufacture them in 1.5 to 2.5 years in Southern and Northern Europe, respectively. Solar PV is now, after hydro and wind power, the third most important renewable energy source in terms of globally installed capacity.