Abstract: A solar power generator for generating electricity from sunlight in which a photovoltaic panel is provided so as to be oriented for minimising exposure to direct sunlight. A heat absorber is provided, together with a filter for receiving sunlight and filtering ultraviolet and visible light components to the photovoltaic panel and infrared components to the heat absorber. The heat absorber may include a thermoelectric module.

Abstract: A thermoelectric module for use in a wall of a building, the thermoelectric module having a heat absorbing side and a heat dissipating side and including a plurality of thermoelectric legs extending there between. The thermoelectric legs are supported by channels provided in the support member. The legs are provided with heat absorbing interconnects and heat dissipating interconnects. The temperature difference across the thermoelectric legs causes electricity to be generated.

Abstract: A wall structure for a building, comprising a cavity (10) for allowing air to flow through the structure between the building's interior and exterior, between the wall structure's inner (2) and outer layers (4). An electricity generating member (20) for generating electricity using heat transfer is located for transferring heat from the building's exterior to interior when exposed to relatively warm external conditions (THOT) and from the building's interior to exterior when exposed to relatively cooler external conditions (TCOLD). The electricity generating member (20) being located for promoting an energy transfer with air within the cavity (10).

Abstract: The present invention concerns fuel production apparatus for use with a combustion device. The apparatus comprises a fuel cell (12) for generating a combustible gas for combustion by said combustion device and power supply means (6) for said fuel cell, said power supply means comprising means for converting energy from a source of waste energy (2) associated with the combustion device into electrical energy for powering said fuel cell.