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Power generation capacity 34,903 MW

Energy week 06.03. – 08.03.2006 Washington D.C. Presentation by Dr. Gereon Thomas RWE Power AG Cologne, Germany Rehabilitation and Emission Control in Thermal Power Plants Example Power Plant Afsin Elbistan A, Turkey. Short-term Trading 1%. Water/others 3%. Water/ others 11%. Gas 8%.

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Power generation capacity 34,903 MW

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  1. Energy week 06.03. – 08.03.2006Washington D.C.Presentation byDr. Gereon ThomasRWE Power AG Cologne, GermanyRehabilitation and Emission Control inThermal Power PlantsExample Power Plant Afsin Elbistan A, Turkey

  2. Short-term Trading 1% Water/others 3% Water/others 11% Gas 8% Lignite 31% Gas 12% Lignite 39% Hard coal 27% Hard coal 28% Nuclear energy 18% Nuclear energy 23% Energy portfolio of RWE Power Power generation capacity34,903 MW Gross power generation205,3 TWh Broad and well-structured energy mix already

  3. RWE AG RWE Power RWE npower RWE Energy RWE Trading RWE Thames Water Generation Mining Oil & gas upstream DEA Renewables Harpen Generation - UK Retail sales npower Renewables National Windpower Regional Energy companies Transmission (electricity & gas grids) Utility services RWE Solutions Electricity, gas & coal trading Water & wastewater Thames Water American Water RWE Power International Power Generation and Mining RE GmbH & RWE npower plc Powerful Group structure

  4. At A Glance • RWE Power International is the Engineering/Consultancy branch of the RWE Group, a leading integrated power and gas company in Europe. • RWE Power International provides specialist services to the power and mining industries in 68 countries worldwide. • RWE Power International has long-standing experience in operating power plant, from construction, commissioning, operations and maintenance. • RWE Power International‘s mining expertise covers minerals and solid fuels and spans exploration, development, operations and rehabilitation. • RWE Power International has an high motivated and experienced staff.

  5. RWE Power and its concept for Thermal Power Plant Rehabilitation WorksExample:TPP Afsin-Elbistan A, Turkey

  6. Introduction Afsin-Elbistan A, lignite-fired thermal power plant • 1355 MWe in four units Commissioned: • Unit 1 : 340 MWe – 07.07.1984 • Unit 2 : 340 MWe – 23.05.1984 • Unit 3 : 340 MWe – 25.01.1986 • Unit 4 : 335 MWe – 21.11.1987 • Lignite of low calorific value, high moisture and ash content, from near-by Afsin-Elbistan Lignite Mine

  7. Introduction The power plant has performed below design for • general wear • changes in coal quality • design • operations and maintenance practice • available reports • Preliminary studies of required rehabilitation measures by EÜAS • Pre-feasibility study by Chubu Electric Power

  8. Goals for the Project • major rehabilitation work, to achieve design performance of generation capacity and availability • determine which repairs and rehabilitation works are necessary and feasible • to improve on the precision of the cost estimates economicalfeasibility/review • to prepare the tender documents for the rehabilitation • to assist EÜAS with the bid evaluation, contract negotiations and preparingdecisions.

  9. Feasibility Report (1) • team of experts for an extensive site inspection • measurement programme, • including mill performance, • boiler efficiency • air ingress testing • development of technical solutions for the problems on plant components • Turbine, fans, pumps, cooling tower (process) • coal mills • bruden filters • firing system • boiler tubing • air • flue gas duct work • electrostatic precipitators • unambiguous formulation of technical specifications

  10. Preparation of Tender Documents for Rehabilitation Works • developing the specifications for rehabilitation projects • improve availability and efficiency • life-time extension by about 20 years • minimize maintenance costs • obtain best investment costs • local experience • compliant with Turkish public procurement legislation and regulations

  11. Project Prioritization (1) • Distribute scarce resources more efficiently • Distribute funds to necessary and more efficient measures • Seek low-cost / cheaper solutions • Seek interim solutions • Best practice • Structure measures • Qualitative analysis • Quantitative analysis • Rank qualitative / quantitative aspects • Ranking of maintenance projects according to static amortization period / net present value rate

  12. Project Prioritization (2)Qualitative analysis • Compulsory projects • Official requirements • Occupational health and safety • Optional projects • Plant preservation • Maintenance projects to counteract depletion • Plant improvement • Projects to improve availability • Plant modifications to step up efficiency

  13. Project Prioritization (3)Cross-plant evaluation of measures • To ensure fair, transparent and efficient prioritization of projects taking account of overall interests, a professional cross-plant evaluation of the site-specific measures is required • to generate ideas allowing to identify the cheapest solution • to be able to use experience gained at other sites • to allow transparent and efficient process planning for all participants • reach interdisciplinary agreement

  14. Project Prioritization (4)Quantitative analysis • Project cards for optional projects state • Implementation costs of measures • Avoidable future maintenance costs • Determine amortization period (static) • Determine net present value rate (dynamic)

  15. Project Prioritization (5)Conclusion • Projects to classify to priories: 1. Must be done, due to: 1 a: statutory requirements, 1 b: safety or 1 c: environmental protection 2. Economically advantageous 3. Long term benefit Budget for complete Rehabilitation, to ensure future operability of plant

  16. Back up

  17. Project PrioritizationExample of a project card *

  18. Project PrioritizationFurther steps • Transfer of the project card data to the project file • Definition of codes for optional and compulsory projects • Development of a calculation algorithm for amortization / key ratios • Classification acc. to codes for compulsory/optional projects and --within these-- acc. to economic key ratios • Addition of costs of individual projects and determination of budget line /budget total • Economic analysis of major individual measures to validate the result • Special appraisal of the projects around the budget line • Plausibility check • Proposal of project budget for final agreement, adjustment / postponement of individual projects to subsequent years • Fine-tuning and inclusion in annual business plan / global approval

  19. Key indicators • external sales of € 2,919 million • Workforce of 18,149* • Electricity generation of 205.3TWh** • Capacity of 34,903 MW** 31/12/04 Das größte deutsche und eines der führenden euro-päischen Stromerzeugungsunternehmen ist entstanden RWE Power is Germany's largest and one of Europe's leading electricity generating companies * translated into full-time equivalents (1FTE = 1 full-time) ** incl. power plant capacities not owned by RWE and dispatched by the Company based on long-term contractual agreements

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