Abstract: Refrigerative shelving arrangement comprising a heat-absorbing shelf (10) formed from a panel having first and second main faces containing plural passages (50) for conveying a working fluid in both liquid and gaseous states around an interior portion of the shelf (10); and a condenser (35) in fluid communication with the heat-absorbing shelf (10), wherein the heat-absorbing shelf (10) and the condenser (35) form a hermetically sealed system configured to allow the working fluid to circulate between the heat-absorbing shelf (10) and the condenser (35) without a compressor.

Abstract: An energy generation system comprises: (i) a first system comprising an electrical generator for converting at least a portion of solar energy into electrical energy; and (ii) a second system, in thermal contact with said first system by means of a device for transferring heat energy from said first system to said second system. The second system comprises a device for converting at least a portion of heat energy from said second system, into electrical energy.