According to the International Energy Agency (IEA), global primary energy demand is projected to rise by 1.5% per year between 2007 and 2030, the major users being the building, transport and industry sector. The IEA Heat Pump Centre gives the example of the Netherlands, where heat represents 80% of the final energy use, temperatures below 100°C being used mainly for space heating and temperatures above 100°C driving industrial processes. In these industrial processes a lot of heat (around 105 PJ) is lost in waste heat from conversion processes like combined heat and power stations. This waste heat, however, can be used by heat pumps to upgrade and deliver again high temperatures for more industrial processes, recycling used energy resources effectively.
Source: ammonia21.com