Abstract: The invention relates to the generation of electricity and the ventilation of urban areas with the use of waste heat from air-conditioning systems, waste organic matter, fuel cells and wind. A first aspect relates to the creation of a column of rising air in a stack to drive electricity-generating turbines. A second aspect relates to the use of wind energy to create a helix shape upward flow of air that may preferably augment the functioning of the first aspect. An advantage of the system is that by transferring waste heat from urban environments above habitable areas the problem of the so-called heat island effect is greatly alleviated.

Abstract: The invention relates to the generation of electricity and the ventilation of urban areas with the use of waste heat from air-conditioning systems, waste organic matter, fuel cells and wind. A first aspect relates to the creation of a column of rising air in a stack to drive electricity-generating turbines. A second aspect relates to the use of wind energy to create a helix shape upward flow of air that may preferably augment the functioning of the first aspect. An advantage of the system is that by transferring waste heat from urban environments above habitable areas the problem of the so-called heat island effect is greatly alleviated.

Abstract: The invention relates to the provision of various shapes integral to surface members in architectural walls and ceilings such as building board materials, plaster and cement render. A first aspect relates to a shaping member for forming a smooth and continuous joint between two dissimilar materials in such a manner that the said joint is not normally apparent to the human eye with the intention of shaping the said surface member for the purpose of housing or augmenting the functioning of utilitarian devices such as light fittings, air conditioning registers and/or to provide decorative forms. An advantage of the present invention is that architectural walls and ceilings may be shaped into specific forms in order to direct the emission of light from associated light fittings and the flow of air from ventilation devices, etc.