Integrated energy system for industrial complexes. Part II. A case study using the LP model

In Part I of the paper, a model of an integrated energy system for an industrial estate (IESIE) was introduced. In this part the model is applied to assess the potential of an integrated energy system in an existing industrial estate in India which has time varying electrical, heating and cooling loads. Results indicate that an after-tax IRR of 11•2% can be obtained from a coal-fired combined heat and power (CHP) plant under the prevailing conditions of loads and costs and a utility transportation distance of 10 km. Considering a 4% statutory return of the Indian public utilities, the rate of return for this system seems substantial. There is a net annual energy saving of 72 million t of coal (calorific value of 5000 kcal/kg) with the associated reductions in environmental pollution.