data science and machine learning in the energy industry · 2019-05-12 · background in energy,...
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DNV GL © 2018 SAFER, SMARTER, GREENERDNV GL © 2018
Data Science and Machine Learning in the Energy industry
1
DNV GL Energy
or..
how to create safe and reliable AI solutions in Energy
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DNV GL © 2018
Theo Borst
❑ Dutch national, MEng, Electrical Engineering, Delft University of Technology, 1989
MBA, Webster University, Leiden Netherlands, 2002
❑ Director of Product Management at DNV GL Digital Solutions
Data management & analytics, Data products, Digital transformation
❑ Track record on business management, product management, team management,
consultancy, project management, system architecture & software engineering
❑ Background in Energy, IT, Telecom and software industries
Philips Electronics, Ericsson Telecommunication, Thales, Tensing, DNV GL Energy
❑ Expertise on Digital Grid Operation
SCADA/EMS/DMS, Smart Metering, Subst. automation, Grid analytics
❑ Secretary of CIGRE JWG D2/C2.41 on Advanced Analytics for Improved
Situational Awareness of System Operation.
❑ Delegate to European Technology & Innovation
Platform (ETIP), Smart Networks for Energy Transition (SNET)
2
Business Director Digital Grid
DNV GL Energy
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DNV GL © 20183
150+ years
100+countries
100,000customers
12,500employees
MARITIME
Hamburg,DE
DIGITAL
SOLUTIONS
Oslo, N
BUSINESS
ASSURANCE
Milan, IT
ENERGY
Arnhem, NL
OIL & GAS
Oslo, N
DNV GL – a quality assurance and risk management company
5%of revenue spent on R&D
Stiftelsen Det Norske Veritas is a free-standing, autonomous and independent foundation whose purpose is to safeguard life, property and the environment.
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Main trends in Energy
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DNV GL © 20185
DNV GL Energy Transition Outlook
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Digitalization will have a huge effect on the Energy industry
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What are the ‘Digital’ Technologies we’re talking about..
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DARQ power
Distributed Ledgers
Artificial Intelligence
Extended Reality
Quantum computing
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connectivity
Internet
Mobile
5G
000111
100110
111011
sensors & data
Proliferation of data
Decreasing cost of sensors
IoT
computers
Large and small
Distributed
Cloud and Edge
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Digital Transformation in Energy
Digital transformation will change business models, create new revenue streams and value
producing opportunities. Two waves:
1. Smartgrid technology
Mostly about adding digital hardware in the grid
(protection, automation, controllers, meters, sensors).
2. The Internet of Energy
Is about emerging digital technologies like
data analytics, AI, cloud, mobile and blockchain.
This will add layers of software and applications on
top of the Smartgrid, bringing scalability and
enabling new business models to grid operators.
For grid operators this translates to:
▪ Moving from reactive to predictive
▪ Improved situational awareness and decision support
▪ Predictive asset maintenance
▪ Data driven system operation
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Focusing on Artifical Intelligence and Machine Learning
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Machine learning in a nutshell:Building predictive models from historical data, for use on new data
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Data Algorithm Model
Initial observations
Machine Learning give computers the ability to "learn" with data(i.e., progressively improve performance on a specific task), without being explicitly programmed
New observations
Build model
Use model
in operation
Fitted
model
Predicted
outcome
Fitted
model
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Today, machine learning is everywhere
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Renewable Penetration
Technology Advancement
Systems interconnection
Data tsunami
Engineering Resources
Extreme Weather
Increasing costs
Cyber Security
Aging Asset
Challenges for Grid or Power System Operators
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Outages as a result of aging
assets
Reverse Power Flow
Voltage & Frequency
Keeping up with technological
advancement
More OT/IT integration
Increasing data volume and
the challenges of turning data
into information
Aging workforce and limited
skilled resources
Better use of weather information
Prevent internal & external threats
Cost efficiency optimisation
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Use cases of data analytics in Energy, focusing on grid operation
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▪ Operational decision support
▪ System situational awareness
▪ Renewable energy generation forecasting analytics
▪ Alarm processing and filtering
▪ Weather caused damage prediction
▪ Peak load management analytics
▪ Outage restoration analytics
▪ System oscillations detection (using PMU data)
▪ Real‐time voltage stability monitoring
▪ Fault location and root cause analysis
▪ Asset health assessment analytics
▪ Predictive asset maintenance analytics
▪ Power quality analytics
▪ Load research analytics
▪ Non-technical loss analytics
▪ Cyber security assessment analytics
GRID OPERATION
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Specific use cases of Data science and Machine learning in Energy
▪ Enhanced distributed resource management.
Machine Learning can help utilities realize the next-generation grid through enhanced distributed resource
management that automatically flows power through the grid to deliver more reliable energy and greater
customer choice. Example: Smart charging for EV
▪ Asset optimization.
Machine learning can be used to develop industry intelligence that will predict the probability of failure.
These algorithms take into account industry-wide early failure rates for equipment, creating a richer
understanding of premature failure risks for enhanced asset maintenance, workflow, and portfolio
management.
▪ Outage management.
Utilities can use analytics-validating models to predict and identify outages. Machine learning and device
automation allow for better resource management, reducing downtime and improving reliability. Self-healing
grids can automatically detect and address vulnerabilities, reducing the likelihood of outages.
▪ Customer engagement.
Utilities are mining data with the aid of machine learning to understand customer behavior and service
needs. Using this data, utilities can provide faster and more intuitive interactive customer service via voice
response, personalization, and service matching.
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Grid operation in power utilities
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Controlling and operating the power grid becomes increasingly complex as a result of:
▪ Increased fluctuations due to renewable infeed.
▪ Market driven system operation (FBMC, EU regulations, )
▪ New threats & risks (cyber/physical attacks, severe weather events)
▪ Aging infrastructure/workforce
• Data analytics• Situational awareness• Predictive analytics • Decision support Will reduce complexity in operation
▪ Data analytics
▪ Data visualisation
▪ Situational awareness
▪ Predictive analytics
▪ Decision support
Will reduce complexity in operation
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Changes in system operation: From (reactive) control room to (proactive) decision support centre
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ASSET
DATA
POWER
QUALITY
WEATHER
DATA
SMART
METER
DATA
CABLE
DATA
WORKFORCE
DATA
PMU DATA
GIS DATA
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Complexity in system operation: Solving the gap between data and actionable information
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Visual Analytics
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Digital Twins
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▪ A Digital Twin is a digital representation of a physical object. It includes the model of the physical object,
data from the object, a unique one-to-one correspondence to the object and the ability to monitor the object
▪ Digital Twin together with Machine Learning (ML) promise the ability to simulate assets, scenarios and
operational conditions through forming a cohesive bond between the physical and digital world and between IT
and OT.
▪ It allows for greater integration of information across the asset lifecycle, while ensuring a single view of the
truth at all times
▪ Through the use of Digital Twin and ML, Utilities may be able to reduce downtime, increase planning,
construction and operational efficiency and drive towards zero unplanned maintenance based on real-time
performance monitoring and AI
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Example of a digital twin saving costs and reducing downtime
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July 2014
Start of generator drive end bearing model deviation
April 2015Bearing failure and full generator replacement was required: total of 15 days downtime
▪ Planned bearing replacement estimated at only 2 days downtime▪ Estimated preventable revenue loss of £15k. Estimated generator cost £80k.
November 2014
Medium confidence alert raised, but no action was taken
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August 2015
Steady generator NDE bearing model deviation
September 2015 onwardsNew bearing means a new SCM component model was required
▪ Bearing failure, resultant damage and potential downtime (500 hours) avoided▪ Estimated prevented revenue loss of £23k
▪ Actively managed wind farm: condition-based maintenance strategy
▪ SCM applied with interventionSeptember 2015
Bearing inspected and replaced total downtime of 12 hours
Example of a digital twin saving costs and reducing downtime
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DNV GL © 201821
PD trigger level, for example at 10 kV
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Partial Discharge in a 10 kV cable
defect
up to 16 km
Synchronization pulsePD pulse
Server
Raw data Warning level
Smart Cable Guard: Predictive analytics solution for cable failures
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Developing a Machine Learning model to automatically detect potential problems in cables
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50k graphs
Initial goal: Automatic detection of cable problems through ML.No feasible due to not enough data on cable faults
New goal: Reduce amount of human review from 10 % down to 1% by introducing a ML
Operator analysis in 10 % of the cases(currently at 5000 reviews a year, but growing fast)
Initial
Filtering
No problem
detected
Actually OK
False
Negatives
Actually OK
(just noise)
(potential)
Cable problem
~90%
~0%
~9%
~1%
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Examples of DNV GL data analytics pilot projects and tools
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Anomaly detection for generator plant Data visualisation for optimal outage planning
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Veracity cloud platform
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Example of usage of new data sources that help manage the grid:Application of Satellite Remote Sensing in Energy
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Asset monitoring during construction or operational phase
Land subsidence and ground movements
creates risks for asset infrastructure
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Example of solutions related to data driven system operation:Promaps Realtime
Allows Real time probabilistic risk calculation of power system, and enables the grid operator to quantify current and future risk levels of the power system, and test actions and strategies on a digital twin of the power system.
▪ Input
– Full model export from SCADA system every 5 minutes
– Statistical failure rates for each component, repair time and reconnection time
– Dynamic weather dependent failure rate for power lines
▪ Output
– Failure probability for each component, branch and system
– Risk for loss of load in MWh/h for each load and the system as whole
▪ Creates the baseline for a consistent probabilistic risk management through out the grid owners value chain. The large result data from Promaps Realtime is well suited for machine learning
▪ Example medium power system, one year calculations: 105 120 system risk calculation, consist of apprx 840 million flow calculations (one calculation every 5 minutes, 7000 flow calculation for each simulations)
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..The other side of the story..
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Digital Transformation in Energy: some figures
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40-50%currently using or
testing data analytics
tools and use cases
20%have data analytics
embedded in their
operational processes
Analytics Deployment
90%expected to be using
data driven business
insights by 2020
70%positive toward
security of storing
data in the cloud
Data Utilisation
>16%estimated savings in
OPEX through
digitalization
15%reduction of losses in
Transmission &
Distribution
Cost Savings
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A recent survey on application of digital technology in Energy
Key Findings
▪ 91% of respondents report that embracing
digital technology is crucial to the future
success of their utilities.
▪ Only 23% of utilities have reached a level of
digital maturity where they are making
capital expenditure decisions based on
predictive analytics.
▪ In the next 3 years, 76% of utilities expect
to be able to align digital strategy with
regulatory policy and fill key digital roles in
their enterprise.
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https://www.forbes.com/sites/parmyolson/2019/03/04/nearly-half-of-all-ai-startups-are-cashing-in-on-hype/
https://etsinsights.com/reports/building-the-21st-century-digital-grid/
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▪ Master asset data in
different systems
▪ No unique Asset ID
▪ No enterprise wide
datamodel
▪ Meaning no
integrated view on
assets capability
▪ No automated
interfaces
▪ Not future proof for
interrelation static
and dynamic data
▪ Poor data
governance
▪ No master data
management
▪ Insufficient
availability
▪ Data quality issues
▪ Insufficient data
integrity control
▪ Limited data
awareness
▪ System awareness,
no person for
enterprise data
responsibility
▪ Reporting, analysis,
planning,
engineering,
inspection &
maintenance based
on siloed data.
▪ Data generated in
many systems
▪ Integrated
information is not
accessible
▪ Poor process
support
Reality check 1: Current data reality in utilities needs to be improved
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▪ Many manual
process steps
required.
▪ Use of temporary
datasets (excel,
access)
▪ Manual processing
leads to errors.
▪ Manual processing
is labour intensive.
▪ Leads to suboptimal
decisions.
▪ No end to end
insight, leading to
poor decision
making on assets
life cycle.
▪ Poor insight in total
cost of ownership
and end to end
process costs.
▪ Not flexible and
predictable.
▪ Not future proof, no
basis for condition
based maintenance.
Siloed data Data governancePoor info
provisioning
Manual
processingEfficiency
POOR DATA ➔ POOR DECISIONS
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‘Enterprise-Oriented’
Strategic Long Term Focus
‘Project-Oriented’
Tactical Short Term Focus
SystemVendors
Project Teams
ProjectConsultants
System Integrators
Data Governance
Internal SystemsExperts
Corporate Data Governance: long term focus is needed
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How to set up, monitor and improve your data management
▪ Data Management provides foundation for organizing data effectively
Required capability areas:
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Governance
Organization
and people
Processes
Process
efficiencyMetrics &
dimensions
Requirement
definition
Architecture, tools &
technologies
Data
standards
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Reality check 2 : Data projects are different
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In data-driven projects 70% of the time is spent on import,
data preparation, quality management and data improvement!
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Data Quality Engine
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Production line for data,Sensor system, Operational & IT
TechnologyData Asset Data Use
The Organization
DNV GL Runtime services
Data Quality Engine
Quality status &
cleansed data
Data Quality rules
Data Cleaning Engine
Data cleaning
rules
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Organizational Data Maturity Assessment
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Maturitylevel
GovernanceOrganization and
peopleProcesses
Process Efficiency
Requirement definition
Metrics and dimensions
Architecture, tools and
technologiesData standards
LEVEL 5 -Optimized
Data management policies governs and drives improvements
Data management board oversees improvement activities
Processes for continuous improvement in place
Processes provides feed-back and feed-forward to support continuous improvement
Baseline established and improvements measured according to requirements
Metrics defines baseline to support continuous improvement
Tools support policy driven continuous improvement cycle
Standard compliance and domain models are subject to continuous improvement
LEVEL 4 –Managed
Policies defined in relation to business objectives
Skillset extended to include risk analysis of quality issues aligned with business objectives
Processes for impact analysis and risk mgmt. in place
Monitoring is performed across enterprise and published as KPI’s and trends
Requirements are linked to business impacts
Metrics are linked to business impacts and risk analysis
Tools are driven by business objectives and include support for root cause analysis and risk mgmt.
Standards are used actively to reduce risk for critical business operations
LEVEL 3 –Defined
Policies defined at enterprise level
Roles and required skills defined at enterprise level
Processes are defined and implemented consistently across enterprise
Defined metrics are monitored in advance of business impact
Requirements defined and communicated at enterprise level
Framework for metrics and dimensions defined at enterprise level
Architecture in place at enterprise level supporting full stack data management
Standards, domain models and semantics used at enterprise level
LEVEL 2 –Repeatable
Local initiatives address the requirement for policies
Locally defined roles and some basic skills
Best practices in place but not used consistently
Generic metrics are monitored at point of impact
Local initiatives define requirements
Metrics are reused locally in projects
Tools and technologies used consistently in selected projects
Industry standards and domain models used selectively across projects
LEVEL 1 -Initial
Only ad-hoc or temporal policies in place
No formally defined roles or skillset
Ad-hoc or reactive responses to quality issues
No baseline and no monitoring of quality issues
Re-engineering used to derive requirements
Project specific metrics
Tools are used ad-hoc per project
Ad-hoc and inconsistent use of standards
Objectives,
Policy, Culture, Awareness, Risks, Capabilities to handle DQ issues
Organization, roles, responsibilities, authority, skillsets
Structured and vetted ways of handling and preventing DQ issues
Measure, monitor and use metrics to mitigate DQ issues
DQ Requirements defined,communicated and acted upon
DQ metrics defined, setup, measured and monitored
DQ Tools forprocessing, analysing and correcting DQ issues with data assets
Use available standards, models,ontologies and taxonomies – a corporate «DQ language»
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Reality check 3: How can we put trust in AI?Especially when it concerns operational technology?
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Explainable AI (X-AI) and AI Safety
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When machines are increasingly responsible for crtical decisions in real-time, we have the responsibility for designing explainable and inherently safe AI systems.
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AI in the real world can be hardExample: image classification
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Recommendations
▪ Hire digitally minded people and create a digital team that can help
train existing staff and build a culture of innovation.
▪ Develop a coordinated strategic road map that is centered on how
moving up the digital maturity curve will lead to improved decision-
making processes.
▪ Use digitization and digitalization to take a portfolio-based approach
to solving business challenges. This will allow a utility to invest in
one or more use cases with the potential for strong ROI over a
shorter period of time, and one or two use cases that are more
strategic and require a longer time frame to see a return.
▪ Address the data requirements up front internally and with key
strategic partners.
▪ Develop a communication plan that emphasizes the importance of
digital transformation to employees, customers, policymakers,
vendor partners, and regulators.
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How can DNV GL help
▪ DNV GL helps to unlock the power of
Digital Transformation in Energy by
extracting value from the new
available grid data and enable
realizing operational benefits.
▪ We can help to:
– Create data-driven solutions
– Advise and provide trainings on
digital solutions or digital strategy
– Be involved in assessment and
quality assurance of digital
solutions.
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https://www.dnvgl.com/energy/themes/digitalization
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Example Roadmap
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Deliverables:
• Roadmap
• Requirement definition
• Use cases
• Business plan with clear ROI
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Summary
▪ The challenges and complexities of power system operations increases
▪ Emerging digital technology enables opportunities capture, store and analyse big datasets and apply AI and ML on them to create data-driven solutions
▪ Essential enablers are data management and governance, as well as the ability create trust in AI solutions
▪ Eco-systems and platforms enable unlocking the value of data by trust, privacy and ease
▪ Industry cooperation on data creates additional benefits previously untapped
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SAFER, SMARTER, GREENER
www.dnvgl.com
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DNV GL helps to unlock the power of Digital Transformation in Energyhttps://www.dnvgl.com/energy/themes/digitalization
Director of Product Management – DNV GL Digital Solutions