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Independent data analysis, a key factor for managing your wind farm

Asset Management and Optimization, AXPO Power AG (Switzerland)

Giuseppe Madia, Gianmarco Pizza

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Agenda

17.01.2014 | Page 2

• Introduction

• Axpo at a glance

• Wind Asset Management Activities

• Wind Asset Management Strategic Options

• The Asset Management Information Infrastructure

• Architecture

• Objectives

• Application Examples

• Conclusion

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Axpo at a glance

nuclear hydro renewablesCCGT

Axpo is active along the entire value chain:

• Power generation

• Power distribution

• Power trading

• Power sales and services

Swiss energy company owned by the north-eastern Swiss cantons

(ca. 7 GW installed capacity, 4000 employees)

Wind farms

• ca. 300 MW installed capacity

• 17 onshore, in operation

• 1 offshore, under construction

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Financial Management

Energy Management

Technical Asset Management

•Operation 24/7•Troubleshooting, Surveillance•Dispatching

•Scheduled Maintenance•Unscheduled Maintenance•Preventative Maintenance

•Performance Analysis•Condition Monitoring•Continuous Improvement•Benchmarking•Failure Analysis, Energy Loss Analysis•Contract Management•Maintenance Management•Strategic Spares•Manage local Stakeholders•Manage on-site activities•Reporting

•Banks, Insurances, Tax•Budgeting, Controlling, Accounting•Reporting

Strategy

Lo

ca

l,O

n-t

he-

Ass

etC

entr

aliz

ed,

Rem

ote

•Risk Management•Imbalance Management•Hedging, Power Purchase Agreements

•Definition of long-term Asset Strategy •Portfolio Management

17.01.2014 | Page 4

Operation

Maintenance

ACTIVITIES:

Wind Asset Management

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Wind Asset Management

Private / Public / Industrial Investors

Medium / Small Power Utilities

Power Utilities

Investment Funds

Insourced

Technical Asset

Management

Outsourced

Outsourced Insourced

Operation and Maintenance

Strategic Options for Technical Asset Management

Insourcing of some activities along the Asset Management value chain can create additional value for the wind farm Owner.

The implementation of an Asset Management Information Infrastructure represents a crucial step when moving towards insourcing.

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Agenda

17.01.2014 | Page 6

• Introduction

• Axpo at a glance

• Wind Asset Management Activities

• Wind Asset Management Strategic Options

• The Asset Management Information Infrastructure

• Architecture

• Objectives

• Application Examples

• Conclusion

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Auto

matic

Pro

cess

Data Import

Data Storage

Wind Farm 1

Data Processing

Automated data import from different sources

Several pre-processing tasks are performed:•Validation•Mapping•Aggregation

The Server runs the scheduled processes automatically:•Models•Report generation & distribution

Fully customisableapplications and reports, ad-hoc analysis, cost/benefit

Desktop Reports

Analysis

Mobile

Requirements:

•Based on raw data

•Customizable

•Independent from OEM or service provider

•Available anytime & anywhere

•Based on automatic processes

•Include commercial impact for cost/benefit analysis

Wind Farm 2

•Market•Meteo•Manual input•TSO

Central Data Base

Architecture of the Asset Management Information Infrastructure

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The objectives for an Asset Management Information Infrastructure are the following:

- provide the Asset Manager with an OEM independent view of the Asset

- monitor the technical / economical performance of the Asset

- monitor the condition of the Asset and of the Asset components

- identify the main causes of losses such to prioritize remedial interventions

- identify continuous improvement measures based on cost-benefit analysis

- provide the Asset Manager with the information set to manage the Counterparties (Service Providers, TSO etc.)

Objectives

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Application Example: 24/7 Operation Monitoring

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Monitor the status of each WTG (in operation, not in operation due to failure, underperforming, under maintenance).

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Application Example: Daily Performance Overview

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Application Example: Logbook Analysis

Information:- Energy loss analysis based on errors stopping the

turbine- Top-10 errors analysis

Benefits:- Identify main energy losses causes and plan corrective

interventions - The Top-10 Errors approach is a «best industry»

practice for continuous asset improvement

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Application Example: Power Curve AnalysisFEBRUARY 2013

Check the performance of each WTG vs. theoretical power curve and identify the cause of underperformance such as :- errors - meteo conditions- grid constrains - operation constrain (e.g. WSM)

AUGUST 2013

The example shows underperformancedue to :- Ice formation on blades- Anemometer not properly working due

to snow and ice

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Application Example: Condition Monitoring

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Breakdown

2 months 15 days

2 months

Temperature is OK Temperature is deviating Breakdown

Main Bearing Temperature

Temperature vs. non-dimensional power before the breakdown

Temperature vs. time

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Application Example: Contractual Availability

Independent calculation allows to ensure full transparency of Bonus/Malus payments

O&M contract(OEM)

Events Logbook

Manual input

Operational data

OWNcontractual availability %

OEM‘scontractual availability % +

-Bonus

LiquidatedDamages

Raw dataIndependent calculation

based on contract formulaComparison with OEM‘s figures

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Conclusions

Independent data analysis represents a key factor for the management of wind farm assets:

- allows the Asset Manager to execute a more effective management of the wind farm which results in a higher value generation

- reduces the information asymmetry between Asset Manager and OEM and allows for an active management of the OEM, thus extracting more value even in a “Full O&M Contract” structure

- a sound asset management information infrastructure (including CMMS) represents an important element to move one step further along the chain of value generation for the wind farm Owner (i.e. insource the maintenance activities).

Insourced

Technical Asset

Management

Outsourced

Outsourced Insourced

Operation and Maintenance

yesterday

today tomorrow