Delivering Asset Reliability in a Competitive Market Environment Azeez Ahamat Reliability Improvemen - PowerPoint PPT Presentation

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Delivering Asset Reliability in a Competitive Market Environment Azeez Ahamat Reliability Improvemen

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Title: Delivering Asset Reliability in a Competitive Market Environment Azeez Ahamat Reliability Improvemen


1
Delivering Asset Reliability in a Competitive
Market Environment Azeez AhamatReliability
Improvement EngineerSnowy Hydro Limited
2
Introduction
  • Company background
  • The reliability journey
  • What has worked for us
  • Tools and Processes
  • Organisational Culture
  • Where to from here?

3
The Snowy Mountains Scheme
4
Snowy Hydro has a significant asset base
  • 16 large dams, 145 km tunnels
  • 9 power stations and 1 pumping station
  • 39 generating units
  • 3,756 MW installed hydro capacity
  • 600 MW Pumped Storage capacity
  • 625 MW Gas Turbine capacity
  • 4,900 GWh per annum energy
  • Voltage, frequency control and system restart

5
Snowy Hydro Plant Characteristics
  • Responsive
  • Reliable
  • Available
  • Flexible
  • Clean, Green and Safe

6
The Reliability Journey
7
Plant Performance
Performance Trends
8
Performance Trends
Maintenance Performance
9
Asset Management Overview
  • Two levels
  • Tactical - Short to Medium Term
  • Strategic - Medium to Long term
  • Responsibility shared between
  • Production Team
  • Strategic Engineering and Projects Team
  • Information and Control Systems Team

10
Asset Management Overview
Asset Management Overview
  • Facility Plans
  • Long term capability planning
  • Business impact
  • Asset Strategy
  • Plant Condition Assessments
  • Asset life-extension and replacement
  • Plant Maintenance and Capability Plan
  • Managing existing capability
  • Operations and maintenance regimes
  • Delivery of asset capability to meet market
    demands

11
How does it fit together?
12
Asset Management Overview
Maintenance Philosophy
  • Classical CI model (Plan/Do/Check/Act)
  • Business drivers (from Strategic Planning
    process)
  • Asset and Plant Strategy
  • Maintenance Strategy (derived from Asset and
    Plant strategies)
  • Maintenance Requirements Analysis (RCM)
  • Routine Maintenance Program
  • Plan implementation optimised against market
    conditions (OMS/ Workplanner)
  • Performance review and improvement

13
Maintenance Model
Asset Management Overview
Market Requirements (Outage Mgt)
  • Equipment item
  • Maint. task
  • Maint. Frequency
  • Resources

Business Drivers
14
Maintenance Philosophy
Asset Management Overview
  • How well is this working?
  • We started applying this philosophy in the 1990,s
  • Performance trends show that it is in the ball
    park
  • Routine Maintenance Program is giving us
    flexibility in the market without affecting
    reliability
  • Not enough review and improvement
  • Untapped opportunities

15
Asset Management Overview
Reliability Model
16
Asset Management Overview
Reliability Tools and Processes
  • Maintenance Requirements Analysis (RCM Cost)
  • Enterprise Asset Management System (Mincom
    Ellipse)
  • Defects Management
  • Performance Management
  • Reliability modelling (AVSim)
  • LOA - Outage Analyser

17
Building the Machine to Get There
Organisational Culture
The Critical Cogs
18
Three areas of focus
Organisational Culture
  • Corporate Values and Behaviours
  • Organisational Culture and Effectiveness
  • Leadership
  • Foundations of Leadership
  • Leadership Impact surveys
  • Continuous Improvement culture
  • Green Book
  • 6-Step problem solving process
  • CI-on-a-page
  • Root Cause Analysis

19
Snowy Continuous Improvement Hand Book
Organisational Culture
  • Overview of Snowy CI
  • Team Roles
  • Rules of conduct
  • 6-step CI process
  • CI Principles
  • CI Tools

20
6 Step Improvement Process
Organisational Culture
21
CI on a page
Organisational Culture
22
Root Cause Analysis
Organisational Culture
  • No formal process
  • Starts with application of 6 step process
  • Event-line and 5-whys mostly used
  • Not perfect, but huge improvement on where we
    were
  • Learnings shared through Defects Management
    process

23
Outage Analyser
24
Lost Opportunities
  • Understand and manage the value of all Lost
    Profit Opportunity
  • What is the gap between our installed capacity/
    and the capacity available for trading?
  • What is this gap worth to the business?
  • What is causing this gap?
  • Can we eliminate it?
  • Need to keep identifying and evaluating lost
    profit opportunities as they occur and take
    action if justified.

25
Asset Utilisation
  • Understanding value of Lost Opportunity (Example)

100 Capacity
Planned Outages
Risk Allowance for uncertainties (forced outages,
transmission failures etc...)
Nameplate Capacity
Spot Capacity
Contractible Capacity
26
Asset Utilisation
  • Asset Utilisation Tradeable Capacity
  • Nameplate Capacity
  • Capacity Available at acceptable
    certainty Nameplate Capacity

27
Performance Trends
28
How did we get here?
  • Sound asset management principles
  • Selective use of reliability/ asset management
    tools and technology
  • Constant review of progress
  • Shift in organisational culture

29
Where to from here?
  • Good reliability performance
  • Incrementally harder to extract further
    improvements
  • Further opportunities exist
  • Close the gap between CI and reliability
    improvement

30
Maintenance Model
Asset Management Overview
Step 1 IDEA
Step 2 DEFINITION
Step 3 ANALYSE
Step 4 ACT
Step 5 MEASURE
Step 6 STANDARDISE
31
Business as usual or new directions?
Maintenance Improvement plus defects management
Defects Management
Current Process
32
Summary
  • Sound basic principles
  • Several small steps
  • Supportive organisational culture
  • Its not rocket science!

33
Questions?
Cabramurra Township
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