Regional Seminar Series CCGT Plant Optimisation using Real

EON: Efficiency Targets Surpassed “We beat our Efficiency target in 2007 by 2. 6%.

Click to edit Master Hamilton North title style Lennox Connah's Quay. . . taking

Click to edit Master title style Contents of Presentation • Introduction to PI and

Click to edit Master title style Introduction to PI and PROATES • PI, Process.

Click to edit Master title style Project History • Installed in 2001 as part

Click to edit Master title style Trend Analysis 7 Empowering Business in Real Time.

Click to edit Master title style Development of Plant Monitoring • As the use

Click. Comparisons Unit to edit Master title style 9 Empowering Business in Real Time.

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Click U 2 Tube to edit Pick. Master Reporttitle style 11 Empowering Business in

Click to edit Master title style. Display Performance Watchdog Problem with ‘GT Inlet Bleed

Click to edit Master title style Performance Watchdog Display • GT Air Inlet Bleed

Click to edit Master title style Performance Watchdog Display • Digital State 14 Empowering

Click to edit Master title style Performance Watchdog Display • These PI screens helps

Click to edit Master title style Performance Watchdog Display 16 Empowering Business in Real

Click to edit Master title style Performance Watchdog Display 17 Empowering Business in Real

Click to edit Master title style Performance Watchdog Display 18 Empowering Business in Real

Click to edit Master title style Performance Watchdog Display 19 Empowering Business in Real

Click to edit Master title style Performance Watchdog Display 20 Empowering Business in Real

Click to edit Master title style Benefits of ‘d 4 e’ Efficiency Improvement Projects

Click to edit Master title style More Recent Developments 23 Empowering Business in Real

Click to edit Master title style Live Imbalance Monitoring 24 Empowering Business in Real

Click to edit Master title style Imbalance Monitoring – Daily Reports 25 Empowering Business

Click to edit Master title style In Summary • Continually evolving process • The

Thank you © Copyright 2009 OSIsoft, Inc. 777 Davis St. , Suite 250 San

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Regional Seminar Series CCGT Plant Optimisation using Real Time Data Mark Bate Efficiency Team Leader EON – Connah’s Quay Power Station Empowering Business in Real Time. © Copyright 2009, OSIsoft Inc. All rights Reserved.

EON: Efficiency Targets Surpassed “We beat our Efficiency target in 2007 by 2. 6%. The 2008 result was >1% against target. This equates to annual CO 2 savings of over 135, 000 Tonnes, saving enough gas to supply the annual needs of over 50, 000 homes!. ” Mark Bate, EON Efficiency Team Leader Business Challenge • Reduce Shaftline Trips • Improve Unit Efficiencies • Reduce CO 2 emissions 2 Value now. Value over time. Solution • Performance Watchdog Displays optimise Plant • Proates models with data stored in PI • Performance Equations, Process. Book and Data. Link • ‘d 4 e’ Improvement project Results / Benefits • Reduced CO 2 emissions by 135 k Tonnes • Efficiency increased by 0. 5%. Saving £ 20 k in lost generation! • Saving over £ 4 m per year © Copyright 2009, OSIsoft Inc. All rights Reserved.

Click to edit Master Hamilton North title style Lennox Connah's Quay. . . taking power generation forward Douglas Hamilton Liverpool Rhyl River Dee Burton Point Deeside Point of Ayr Connah's Quay 3 Empowering Business in Real Time. Chester © Copyright 2009, OSIsoft Inc. All rights Reserved.

Click to edit Master title style Contents of Presentation • Introduction to PI and PROATES • Early development of Plant Monitoring • Introduction of a Performance Watchdog Display • Benefits of ‘d 4 e’ Efficiency Improvement Projects • More recent developments • Summary 4 Empowering Business in Real Time. © Copyright 2009, OSIsoft Inc. All rights Reserved.

Click to edit Master title style Introduction to PI and PROATES • PI, Process. Book and Data. Link • allow Plant data to be interrogated post event or displayed as live values in a Process. Book Display or Excel spreadsheet • PROATES(PROcess Analysis for Thermal Energy Systems) 5 • reads actual Plant data from PI • performs a series of thermal calculations based on the Plant • writes the results back to PI • calculations can also be referenced to Standard Conditions. • areas of poor performance are then identified and can be rectified. Empowering Business in Real Time. © Copyright 2009, OSIsoft Inc. All rights Reserved.

Click to edit Master title style Project History • Installed in 2001 as part of Powertech Trial • Used by a few engineers • By 2003 extensive use by Operations Team 6 • Shaftline trips, troubleshooting • Trend analysis Empowering Business in Real Time. © Copyright 2009, OSIsoft Inc. All rights Reserved.

Click to edit Master title style Development of Plant Monitoring • As the use of PI flourished… • Development of ‘real time’ displays for comparing Unit Performance • Use of ‘Multistate’ symbols on displays to act as visual alarms • 8 Use of Datalink to create reports for various Plant performance issues (Condenser Tube Pick Report) Empowering Business in Real Time. © Copyright 2009, OSIsoft Inc. All rights Reserved.

Click to edit Master title style Performance Watchdog Display • GT Air Inlet Bleed Heating Valve found open at around 8%, bleeding off warm air to the GT Air Inlet. Found out using PI Trends that this had been the case for almost 3 Days • Cycle Output increased by 7 MW • Efficiency increased by 0. 5% • This incident alone was estimated to have cost over £ 20 k in lost generation! • 13 Surely we could make use of PI Performance Equations to minimise these events and give us early warning? Empowering Business in Real Time. © Copyright 2009, OSIsoft Inc. All rights Reserved.

Click to edit Master title style Performance Watchdog Display • These PI screens helps us • • 15 maintain a 0. 5% efficiency improvement on each unit, through optimising output and performance saving of over £ 4 m per year across the site. Empowering Business in Real Time. © Copyright 2009, OSIsoft Inc. All rights Reserved.

Click to edit Master title style Benefits of ‘d 4 e’ Efficiency Improvement Projects Cooling Water Systems +0. 7% Gas Turbine / Compressor Improvements +0. 6% • Filter upgrades and new offline wash strategy • Compressor Core Plugs fitted HRSG Pre Heater clean +0. 2% • Many others…. 21 Empowering Business in Real Time. © Copyright 2009, OSIsoft Inc. All rights Reserved.

Click to edit Master title style Benefits of ‘d 4 e’ Efficiency Improvement Projects • In 2007 we beat our Efficiency target by 2. 6% • in 2008 result was >1% against target • This equates to annual CO 2 savings of over 135, 000 Tonnes, • saving enough gas to supply the annual needs of over 50, 000 homes! 22 Empowering Business in Real Time. © Copyright 2009, OSIsoft Inc. All rights Reserved.

Click to edit Master title style In Summary • Continually evolving process • The PI Watchdog screens ensure we are getting the most out of the current state of the Plant at all times • We have been able to develop and enhance our monitoring • PI has given us the confidence to address areas of: • poor plant performance • carry out effective cost / benefit analysis to obtain the necessary funding • Our PI system has become an integral part of the way we operate at Connah’s Quay. 26 Empowering Business in Real Time. © Copyright 2009, OSIsoft Inc. All rights Reserved.