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      Carbon emissions pinch analysis (CEPA) for emissions reduction in the New Zealand electricity sector

      Atkins, Martin John; Walmsley, Michael R.W.; Morrison, Andrew S.; Kamp, Peter J.J.
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      Carbon emissions pinch analysis.pdf
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      DOI
       10.3303/CET0918041
      Link
       www.aidic.it
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      Atkins, M., Walmsley, M., Morrison, A. & Kamp, P. J. (2009). Carbon emissions pinch analysis (CEPA) for emissions reduction in the New Zealand electricity sector. In Jiri Klemes (ed/s) Chemical Engineering Transactions, Vol 18. Proceedings of the 12th International Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction. AIDIC, Rome, Italy; 10-13 May, 2009(pp. 261-266).
      Permanent Research Commons link: https://hdl.handle.net/10289/3244
      Abstract
      Carbon Emissions Pinch Analysis (CEPA) is a recent extension of traditional thermal and mass pinch analysis to the area of emissions targeting and planning on a macroscale (i.e. economy wide). This paper presents a carbon pinch analysis of the New Zealand electricity industry and illustrates some of the issues with realising meaningful emissions reductions. The current large proportion of renewable generation sources (~67% in 2007) complicates wholesale emissions reductions. The biggest growth in renewable generation is expected to come from geothermal energy followed by wind and hydro. A four fold increase in geothermal generation capacity is needed in addition to large amounts of new wind generation to reduce emissions to around 1990 levels and also meet projected demand. The expected expansion of geothermal generation in New Zealand raises issues of GHG emissions from the geothermal fields. The emissions factors between fields can vary by almost two orders of magnitude making predictions of total emissions highly site specific.
      Date
      2009
      Type
      Conference Contribution
      Publisher
      AIDIC Servizi S.r.l.
      Rights
      This article has been published in the Proceedings of the 12th International Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction. Used with permission.
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      • Science and Engineering Papers [3143]
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