These will largely depend on the type and amount of energy required. One possible approach to a reduction of the overall energy consumption consists in cascading the utilization of heat at different temperature levels, another one in using combined heat and power plants (CHP) for the generation of heat and electricity.

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Thesewilllargelydependonthetypeandamountofenergyrequired.Onepossibleapproachtoareductionoftheoverallenergyconsumptionconsistsincascadingtheutilizationofheatatdifferenttemperaturelevels,anotheroneinusingcombinedheatandpowerplants(CHP)forthegenerationofheatandelectricity.