Transcript Slide 1
A Brief History – AEP Generation Design Innovation & Efficiency Improvements Presented by: Mark Gray, Vice President Engineering Services APP Site Visit October 30 – November 4, 2006 AEP Background • Largest U.S. electricity generator • Largest consumer of coal in the Western Hemisphere • A leading consumer of natural gas • Major wind power developer • 39,000 miles of transmission • 186,000 miles of distribution • 5 million customers • 11 State Service Territory AEP Service Territory 2 AEP Utility Service Area Headquarters Headquarters, Columbus, Ohio 3 AEP System Operated Units • Coal – 52 units – 25,627MW • 95 to 1300MW • Gas – Steam - 21 units – 3,981MW • 25 to 470MW – CT - 12 units – 1,231MW • 54 to 180MW – NGCC - 3 units – 1,550MW Donald C. Cook Nuclear Plant • 273 to 850MW • Nuclear - 2 units – 2,143MW • Hydro - 72 units - 284MW • <1 to 25MW • Pumped Storage – 5 units 586MW • Wind - 207 units - 311MW • 1.5MW each 4 Turbine Cycle Series # of Units Initial In-Service Date Glen Lyn 5 - 100 MW (Non-reheat) 3 (2 retired) 1944 Sporn - 150 MW (Sub-Critical) 7 (1 retired) 1949 Kanawha - 215 MW (Sub-Critical) 5 1953 Glen Lyn 6 - 240 MW(Sub-Critical) 9 1957 500 MW (Supercritical, Double Reheat) 2 (1 retired) 1960 600 MW (Supercritical, Double Reheat) 4 1964 800 MW (Supercritical, Double Reheat) 5 1969 Northeast 3/4 - 460 MW (Supercritical) 5 (3 gasfired) 1970 1300 MW (Supercritical) 6 1973 Conesville 5/6 - 375 MW(Sub-Critical) 2 1976 Welsh - 528 MW (Sub-Critical) 4 1977 Series 5 AEP Operated Coal-fired Units • 2005 Heat Rate – 9898 Btu/kWh – Well below US average • 52 units - 95 to 1300 MW – First & Largest Operator of Double Reheat Units (worldwide) • 10 Active – 450 to 800 MW • 2 Retired Cardinal Plant – Largest Coal-fired Unit – 6 x 1300 MW – 20 supercritical units • All AEP fossil units built since 1963 were supercritical (does not include units acquired in C&SOE & CSW mergers. Gavin Unit 1 – 1300MW 6 AEP Efficiency Accomplishments U. S. Firsts 1924 First reheat generating unit -- Philo Plant 1941 First very high pressure (2,300 psi), natural-circulation generating unit -- Twin Branch Plant 1949 First high-pressure, high-temperature combination (2,000 psi & 1,050 F main steam & 1,000 F reheat) -- Twin Branch Plant 1950 First heat rate below 10,000 Btu/kwh -- Philip Sporn Plant 1957 First supercritical-pressure steam (4,500 psi) and super-high temperature steam (1,150 F) & double-reheat -Philo Plant 1960 First Heat Rate below 9,000 Btu/kwh -- Clinch River Plant 1966 First control room simulator to train power plant operating personnel -- Cardinal Plant 1981 First application of sliding-pressure technique on supercritical-pressure generating units -- Gen. James M. Gavin Plant 2000-2008 Installation of advanced steam path turbine components on 600 MW, 800 MW and 1300 MW units 2011 Planned startup of new 600 MW pulverized coal plant using 3800 psi / 1110F / 1125F steam cycle with 8900 Btu /kwh heat rate (HHV) 7 2000 11000 1995 1990 1985 1980 1975 1970 12000 1965 13000 Rockport 2 Rockport 1 Mountaineer CSP Integration Cardinal 3 Cook 2 & Retirements Mitchell 1&2 & Amos 1 Amos 1 Amos 3 Gavin 1 Gavin 2 & Cook 1 Cardinal 1&2 Muskingum River 5 Big Sandy 2 Tanners Creek 4 Breed & Sporn 5 14000 1960 1955 1950 1945 Heat Rate - Btu/kWh AEP System vs US Average Heat Rate 17000 16000 15000 Cooling Tow ers (except Cook) US Fossil 10000 9000 AEP Fossil 8000 8 Philip Sporn Plant Units 1 - 4 9 Clinch River Plant Unit 1 10 Breed Plant Unit 1 11 Muskingum River Plant Unit 5 12 Mountaineer Plant Unit 1 13