Bluesky - Esri UK Annual Conference 2016

Slide 1

Optimising Vegetation Management Using GISRalph Coleman

Innovative and affordable GIS and environmental data at your fingertipsTrees are the single largest threat to UK electricity supplies.

The Problem

Innovative and affordable GIS and environmental data at your fingertips

The Problem

Innovative and affordable GIS and environmental data at your fingertipsThe Problem

There has been too much of this

Innovative and affordable GIS and environmental data at your fingertipsGlobal warming over the last century means heat extremes that previously only occurred once every 1,000 days are happening four to five times more often

a study published in Nature Climate Change said.The Problem

Innovative and affordable GIS and environmental data at your fingertipsAlthough no individual storm can be regarded as exceptional, the clustering and persistence of the storms is highly unusual

Met Office speaking about storms in the last 5 yearsThe Problem

Innovative and affordable GIS and environmental data at your fingertipsThe following is a brief summary of the effects of the December 2013 storms:

Over 6,900 faults occurredDamage was caused mainly by fallen trees and branches Over two million people lost their power supply 16,000 customers were left without electricity for more than 48 hours Additional costs to DNOs was 39 million!Under Ofgems Guaranteed Standards, payments to customers totaled over 7.5 million This could be up to 300 per customer for lost service. The Problem

Innovative and affordable GIS and environmental data at your fingertipsOfgem keep a very close eye on this by closely monitoring the number of Customer Minutes Lost (CMLs) and Customer Interruptions (CIs) One of the electricity DNOs recently informed us that in 2014, the cost of CMLs in relation to just the 11kV and 33kV network was 27.2m!. This cost would include the cost of clearing the trees, repairing the damage and any payments to customers for interruptions in their electricity supply.

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Electricity Supply Quality and Continuity Regulations (ESQCR)These regulations state that it is the Electricity Distribution Network Operators (DNOs) duty to keep sufficient distance between vegetation and overhead lines both to safeguard public safety and to ensure continuity of supplyStrict guidelines on maintaining distances ENATS 43-8Legislation

Innovative and affordable GIS and environmental data at your fingertipsTraditional ApproachTeams of surveyors walking the linesAverage of 3 years to cover a networkVegetation grows never have a complete pictureThe cutting then takes three years which is inefficient and is likely to result in more tree related outages and therefore associated fines

Innovative and affordable GIS and environmental data at your fingertipsCutting like the forth bridge9

New Approach

A new approach combining spatial data and innovative GIS processes in revolutionising vegetation management

Innovative and affordable GIS and environmental data at your fingertipsData captured in one season so there is a complete understanding of the current veg state across the networkSo it will then be possible to produce a risk based work programme, which will ensure that all the tree cutting is prioritised by the threat of the vegetation and the number of customers that would be affected by a tree related outage.

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New Approach

Innovative and affordable GIS and environmental data at your fingertipsData captured in one season so there is a complete understanding of the current veg state across the networkSo it will then be possible to produce a risk based work programme, which will ensure that all the tree cutting is prioritised by the threat of the vegetation and the number of customers that would be affected by a tree related outage.

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New ApproachAimsWhere is the encroachment at its worst?Accurate and informative resultsRisk based cutting plansIncreased efficiency, reduced cost and better customer experience


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New Approach - Capture

Innovative and affordable GIS and environmental data at your fingertipsCutting like the forth bridge13


Innovative and affordable GIS and environmental data at your fingertipsNew Approach - Capture

Innovative and affordable GIS and environmental data at your fingertipsRapid acquisition of LiDAR and Aerial Photography of the entire area of operation from multiple aircraft15



New Approach - CaptureRapid acquisitionHigh specification instrumentsReliable positional accuracyHigh point density (high detail)Wide area allowing entire network to be assessed


New Approach - AnalysisSoftware - ArcGISHuge datasets requiring stable platformsSignificant processing powerIntuitive and robust analysis toolsCompatibility for continuityEasy visualisation in 3D


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New Approach - Analysis

Classification

ConductorsTowers/PolesVegetationOther structures


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New Approach - AnalysisClassification

ConductorsTowers/PolesVegetationOther structures


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New Approach - AnalysisFiltering

ConductorsVegetation within 6m


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New Approach - Analysis


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New Approach - AnalysisDistances

Points are attributed and classified into risk categories


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New Approach - AnalysisDistances

Attributed points snapped to 2D lines in segmentsStatistical analysis undertaken to determine risk category for each conductor


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James Eddy (JE) - Not sure i like this picture.New Approach - Analysis


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New Approach VisualisationInteractive 3D viewerHosted / Streamed contentIntuitive UIAbility to customiseMultiplatform

Innovative and affordable GIS and environmental data at your fingertipsNew Approach Visualisation



Innovative and affordable GIS and environmental data at your fingertips Risk based work programmePrioritised tree cutting by the threat of vegetation and the number of customers that would be affected by a tree related outageHuge savings through intelligent planningOutcomes


Innovative and affordable GIS and environmental data at your fingertips DNOs are under severe pressure from the regulatorVegetation cutting plans need to be more intelligentProactivity rather than reactivityA brighter future!Conclusions


Bluesky - Esri UK Annual Conference 2016

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Transcript of Bluesky - Esri UK Annual Conference 2016