Energy is the prime mover of economic growth and is vital to the sustenance of a modern economy. Future economic growth crucially depends on the long-term availability of energy from sources that are affordable, accessible and environmental friendly. Chemical processes should be designed as part of a sustainable industrial activity that retains the capacity of ecosystems to support both life and industrial activity into the future. Sustainable industrial activity must meet the needs of the present, without compromising the needs of future generations. Pinch Technology a technique used in the realm of process engineering, is introduced. The aim of this approach is to consider all the heat transfers occurring in a large energy utilizing facility with a view to minimize the external heat transfers to or from the site. It is also known as process integration, heat integration, energy integration. Pinch technology provides a systematic methodology for energy saving in processes and total sites. The methodology is based on thermodynamic principles.