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Power outages - 2011

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Rome, October, 6th 2011


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Aboo power plant general data

ABOO 1

Commissioned in 1974

Nominal output: 365,5 MW

ABOO 2

Commissioned in 1985Nominal output: 556,2 MW

Imported subbituminous coal +

+ BFG + COG + Steel mill gases

Open cycle cooling water


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Historical Frame

Ageing of units

As the plants age, nature of problems change (creeping, fatigue, electricalisolation)

Developement of plant scheduling

Greater user knowledge + warranties over + amortized equipment

Futureperspectives

Decommissiong Vs Repowering


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Present situation of (Spanish) market

Operation Pattern

2005 = Base load

2010 = Secondary Regulation

2012 = Stop?

Competitive situation

Plant efficiency and availability Vs flexibility and technical minimum load


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Learning organizations

Experience

Nobody does it better

Nobody does it the best

Learning organizations


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Benefits

Be more efficient, by internalization of better practices

Be more reliable, by developing better responses againstunexpected

Be safer, by continuosly reviewing our procedures

Be more flexible, by increasing versatility of own resources

Be more independent, by having the knowledge sharedby the team


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How we learn

We learn from our own mistakes

We learn from the mistakes of others

We learn from benckhmarking and networking

We search the market for better practices

We identify opportunities to improve

We use tools and levers

o Promoting day to day spaces for sharing of

knowledge, to develop common models

o Creating a Company Culture based on clear

politics to act as a guide to create a sharedvision.

o Involving staff in continuous improvement

projects

o Emphasizing from the leadership

o Spreading knowledge by making information

accesible and friendly.


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How we learn

DefineClear prioritization of goalsStandarized procedures

Detailed documentation about time

schedule and scope

ImplementInvolve

CommunicateProvide flexible and agile hierarchy

MeasureSet clear metrics which can be

validated

Focus on KPIs

Provide comprehensive

coverage(Technical, Economical, H&S,etc.)

AssessDetailed conclussions on achievement

of goals and deviations


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What we do; Planning

Matrixed organization

Same specilized workers involved indifferent projects teams leaded bydifferent project managers

Predefined Standard ScopeDetailed jobs, with estimation of times,

costs and spares. Used as a baseline forthe definition of the final scope.

Involvement of technicians asapThrough work teams complying withmatrixed organization where detailed

scope and planning is propposed.

Consolidation by managersProjects are merged into a consolidatedplanning by team managers with onlyone overhaul coordinator.

Jos AntonioGarca Martnez

Jos Antonio dela Guerra Alonso

EDP

Trabajos elctricose I&C en general

Alternador ytrafos

DCS / BMS /Turbotrol

Pedro Martnez Mielgo /Juan Francisco Fernndez

Pablo lvarez Vigil

Vanesa Hernndez / VctorFidalgo

QuemadoresBajo NOx

Automatizacinde Ignitores

Reconstruccincenicero

Enric ComaResponsable Proy. Ecos.

Interlocutor yCoordinador Revisin

DireccinRevisin

ProyectosLEAN

Agua decirculacin

Trabajosmecnicos engeneral

Molinos,Ventiladores yCAS

TurbinaIgnacio Alvarez / RafaelGutirrez

Carboneo ycenizasJorge Nieto Rodrguez


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What we do; Execution

Previous specific training for own personnel andcontractors

Additional supervising resources

Daily briefings with supervisors at the workshops

Project follow up meetings every 2-3 days, with projectmanagers, supervisors and contractor delegates

Weekly coordination meetings with concurrentcontractors, focusing on H&S issues

Preventive observations of H&S and environmentalbehaviours


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What we do; Measuring

Technical MeasurementsBaseline measurements before overhaulStandarized test program based on thermal performance of main equipmentindividually

Boiler Feedwater heaters Primary/Secondary air preheaters Boiler feedwater pumps

Circulating water pumps Turbine Condenser Overall thermal balance Other on demand


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What we do; Measuring

Economical MeasurementsControlling by projects. Each project corresponding to a main system:1. Boiler2. Generator & Turbine3. Secondary Air Preheaters4. ESP and Ducts

5. Cooling Water System6. Mills and Combustion7. Fly-ash and Bottom-ash Handling System8. Main Fans (IDF & FDF)9. Condensate and Feedwater System10. Main transformers and power distribution

11. HV Motors12. Control System13. FGD14. Others

This allows to compare developing of OPEX between overhauls.Spares and materials, tools and equipment, fungibles and labour are

considered separatelly.

Documents

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