TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Device: The rail is configured such that when the load exceeds the predetermined level the legs move relative to the base before the crystalline silicone photovoltaic cell, the cover sheet, and the back sheet break. It extends along a longitudinal axis and where the adhesive is trapezoidal in shape in a plane perpendicular to the longitudinal axis. The adhesive receiving surfaces extend transversely to the back sheet such that the adhesive is trapezoidal in shape between each adhesive receiving surface and the back sheet. The base of the rail defines at least one slot for receiving a fastener to fasten the rail to the racking system. The crystalline silicon photovoltaic cell, the cover sheet, and the back sheet remain unbroken when the photovoltaic module is subjected to up to 2400Pa. The rail extends continuously from one end to another end of the module along the width of the module. The photovoltaic cell module is frameless, the first encapsulant layer is formed from an organic polymer or silicone, and the cover sheet is formed of glass and the back sheet is formed of an organic polymer or silicone. Preferred Parameters: The adhesive has a thickness measured along a first line extending from the rail to the back sheet of the photovoltaic module and where the thickness is between 8mm and 20mm. It has a thickness measured along a first line extending from the at least one rail to the back sheet of the at least one photovoltaic module the adhesive has a width between the at least one rail and the back sheet measured along a second line perpendicular to the first line, the width being between 8mm and 10 mm. The base extends along an axis between the legs and where the legs each extend from the base at between 55 and 90 degrees relative to the axis.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The silicone composition is a room temperature vulcanizing silicone composition. The room temperature vulcanizing silicone composition is a condensation curable silicone composition. The condensation curable silicone composition comprises an organopolysiloxane having at least one hydrolysable group; a crosslinking agent; and a catalyst.