HelioSphera S.A. is a Greek company founded in 2007, with major stakeholders in and the United States of America. Its headquarters is in , Greece, and its production facility is in . The company's primary product was and modules, made of thin-film with an annual capacity of 60. The company ceased production in 2012 after falling victim to Chinese competition and it was declared bankrupt in 2017.
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PVT collectors combine the generation of solar electricity and heat in a single component, and thus achieve a higher overall efficiency and better utilization of the than conventional PV modules. Photovoltaic cells typically reach an electrical efficiency between 15% and 20%, while the largest share of the (65% - 70%) is converted into hea.
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