Photovoltaic apparatus and installations for generating solar electricity; photovoltaic cells; photovoltaic modules; photovoltaic boards; solar modules; solar panels for the production of electricity; solar wafers; electrical solar cells; solar cells for electricity generation; solar panels; photovoltaic modules for roofs, facades or balcony railings; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; charging stations for electric batteries.