NOVELTY - The method comprises providing a sealing member that covers an opening of an outer assembly of a storage member, placing a sealing material in a recess, melting a portion of the sealing material in the recess, placing an edge member into the partially melted sealing material, and allowing the sealing material to solidify about the edge member subsequent to the act of placing the edge member into the sealing material. The storage member comprises the outer assembly with a wall defining an inner volume, and photovoltaic devices (12a) within the inner volume.    USE - The method is useful for producing a photovoltaic assembly, which is useful for receiving light and producing electrical energy (claimed).    ADVANTAGE - The method is capable of efficiently, rapidly and simply producing the photovoltaic assembly with improved performance and long life span and without any damage.    DETAILED DESCRIPTION - The method comprises providing a sealing member that covers an opening of an outer assembly of a storage member, placing a sealing material in a recess, melting a portion of the sealing material in the recess, placing an edge member into the partially melted sealing material, and allowing the sealing material to solidify about the edge member subsequent to the act of placing the edge member into the sealing material. The storage member comprises the outer assembly with a wall defining an inner volume, and photovoltaic devices (12a) within the inner volume. The outer assembly is an elongated and tubular outer assembly, has an opening from an external environment to the inner volume, a transparent member, an arcuate feature, and a cross-section of an n-sided polygon, where n is greater than two, and comprises transparent tubular or transparent elongated casing layers. The opening is defined with an edge characterized by sides. A first member from the storage member or the sealing member is characterized by the recess, which is bounded by a first surface and a second surface. The first surface and the second surface face each other along an entire length of the recess. A second member from the storage member or the sealing member aside from the first member is characterized by an edge feature corresponding in shape to the recess. The placing step and the allowing step act to seal the opening to the inner volume. The sealing member is a metal cap (30), a powder glass and a ceramic material having a melting temperature of 350-450 degrees C. A photovoltaic assembly has a helium leak rate of less than or equal to 10-8 cc/sec.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a photovoltaic apparatus.    Photovoltaic device (12a)    Outer transparent barrier (26a)    Photovoltaic apparatus (28)    Cap. (30)