Moura Photovoltaic Power Station Moura Photovoltaic Power Station The Moura Photovoltaic Power Station (also known as Amareleja Photovoltaic Power Station) is a large photovoltaic power station in Amareleja, in the municipality of Moura, Portugal. It is one of the largest power stations of its kind, and is built in one of the sunniest regions in Europe. Its construction involved two stages: stage 1 was completed in 2008 after 13 months, and stage 2 was completed in 2010. The entire project topped a total cost of €250 million. Stage 2 of the project involved the construction of a further 20 MW of solar panels. It
Photovoltaic effect electric energy. The photovoltaic effect can also occur when two photons are absorbed simultaneously in a process called two-photon photovoltaic effect... The photovoltaic effect was first observed by French physicist A. E. Becquerel in 1839. He explained his discovery in "Comptes rendus de l'Académie des sciences", "the production of an electric current when two plates of platinum or gold immersed in an acid, neutral, or alkaline solution are exposed in an uneven way to solar radiation." Besides the direct excitation of free electrons, a photovoltaic effect can also arise simply due to the heating caused by absorption of the light.