form of hot water during periods of high solar radiation and this heated water can then be used during nights and heavily clouded periods as a source of heat for creating the tower updrafts the base also preferably incorporates an incinerator for burning waste materials such as garbage the heat generated by the incinerator can either be allowed to go up the tower to provide air flow for driving the impellers or it can be used for heating the water in the reservoirs by way of heat exchangers according to a preferred feature of the invention the hot water produced by the solar heating chambers and the incinerator also utilized to produce steam the hot water is converted into steam through a heat exchange pump with the pressure energy for part of the heat exchange pump being available through harnessing of the wind power the steam thus obtained is used to power a steam turbine generator to produce electricity thus it will be seen that the system of this invention is a combined comprehensive energator which uses solar energy for the production of electrical energy and is also capable of utilizing the same system for the practical disposal of waste materials with the combination of direct solar heating heat storage and waste incineration it is possible to generate electricity with the system even during periods of very low solar energy availability the device is preferably provided with automatic controls which regulate the air flow travelling up the tower this can be done by measuring the impeller speeds within the tower and utilizing this to control dampers on inlet air at.