Co- and Tri-generation

Co-generation or Combined Heat and Power (CHP) is the generation of electricity and heat simultaneously, typically by using engines or turbines. The engine or turbine drives an electrical generator to produce electricity, which is then used by either your own facility or sold to the grid. The exhaust heat produced by the engine or turbine may be recovered to provide hot water, room heating, process steam or converted to cooling by using an absorption cooler, also called trigeneration.

Using heat and power together from a single source means that the overall energy efficiency can be in excess of 85%, compared with 40% for traditional power stations. This increased efficiency results in financial, security and environmental benefits.

EMD will undertake an independent, detailed technical and economic analysis as to the suitability of a site for combined heat and power. In order to provide a highly reliable and optimal appraisal, EMD has developed very advanced computer software that reduces the investment risk associated with a CHP investment as the economic studies are being prepared according to the guidelines of the World Bank and other major international investment banks. This means that our financial study includes cash flows and balance sheets and on a monthly basis throughout the planned project period.

Below is a list of issues that are normally included in a CHP study / appraisal prepared by us:

• Evaluation of the site or industry's energy usage data.
• Develop a load distribution for the site.
• Determine site heat / cooling demand to power ratio.
• Selection of a technology and equipment to match site heat/cooling demand to power ratio.
• Restrictions on fuel availability and on import/export of electricity to the local power grid or third party.
• Investigation of integration of CHP plant with existing plant, if any.
• Equipment selection taking into account cost of equipment and efficiency.
• Detailing plant operation strategy.
• Detailing revenues, energy costs, operation and maintenance costs, investments, financing and taxation.
• Preparation of a bankable feasibility study with income statements, cash flows and balance sheets for each year in the entire project period. Preparation of financial key figures such as IRR, NPV and payback time.
• Emissions and environmental aspects investigation - CO₂ saved.
• A comprehensive report of the findings will be presented, with all supporting documentation and commercial appraisal of the project.

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EMD International A/S  Niels Jernesvej 10  9220 Aalborg Ø Denmark  
Tel.: +45 9635 4444  Fax: +45 9635 4446  E-mail: emd@emd.dk