A system and process for targeted simultaneous use of solar radiation to generate electricity, heat a liquid circuit, and reduce the heating of a building. The system uses the thermal energy in heated air. At least one solar cell module, together with at least one further element, forms a cavity on a rear side of the at least one solar cell module. Air is in the cavity and solar radiation incident on the at least one solar cell module heats the air in the cavity beneath solar shingles. The air heated is brought into contact with an air-liquid heat exchanger which is part of a liquid circuit designed for heating a refrigerant circuit, particularly a heat pump, and/or for heating an evaporator, particularly a heat pump, and/or a buffer storage tank, particularly a water-filled buffer storage.

A concentrator tube comprises a reflector portion having two walls; and an aperture closing an opening to the reflector portion. The aperture and the reflector portion extend longitudinally. The aperture is substantially flat relative to curvature of the reflector portion.

A solar automatic heat collecting and equalizing tube, including: a glass tube, an absorption tube, and a baffle. The glass tube is sleeved on the absorption tube. The absorption tube is coated with a heat absorption layer. The space between the glass tube and the absorption tube is vacuum. The baffle is disposed in the inner cavity of the absorption tube and is configured to drive a fluid in the absorption tube to tumble up and down alternately. The baffle is spiral in shape and fixed in the absorption tube.

A heat receiver, a reactor, and a heater utilize the heat of concentrated solar light for thermal decomposition and/or chemical reaction of coals, etc. The heat receiver includes: a side portion forming a substantially cylindrical side surface; a substantially circular bottom portion connected to the lower edge of the side portion; and a ceiling connected to the upper edge of the side portion. A substantially circular aperture is formed in the center of the ceiling. The heat receiver has a substantially cylindrical cavity and the opening portion is open. When the cavity has a diameter of D and a length of L, and the aperture has a diameter of d, d=D/2 or less and L=2D or more. Concentrated solar light entering the heat receiver is to be contained in the heat receiver to effectively utilize the solar light.

A hybrid solar panel including at least one single-piece section resulting from extrusion, the section including a wall forming the aforementioned bottom and top faces of the heat exchanger, and the section includes: a plurality of longitudinal fins extending substantially perpendicularly from the bottom face of the heat exchanger or from the aforementioned wall, andat least one portion of the circulation pipe directly connected to the bottom face of the heat exchanger or to the aforementioned wall, the portion of the circulation pipe extending substantially parallel to the longitudinal fins.