Esri UK 2012 - PowerPoint Template

Online Curtailment Analysis Tool Improving Network Connections

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PresentersMartin WrightSP Energy NetworksMartin HammondSmarter Grid SolutionsJorge Pena-Martinez / Paul HannEsri UK2

Connecting a new 500 kW wind turbine in the Dunbar area.3

The presentation focuses on the required steps to get a new 500 kW wind turbine connected in the Dunbar area.3

Selecting the connection point

Wait for application to be processedConnection cost:575k

Connection cost:450kConnection cost:375kCapacity Factor34.5%

First select a proper area with enough wind (blue area) which would give me a good CF for 34.5Then, select an area where I know I can put the turbine (I know the landlord, etc.) light green areaSelect possible connection points with good access, dark green dotsAfter going through the connection application process, high different costs come back4

Network capacity influencing the cost5

No more capacity at the distribution transformer

No more capacity in the overhead line

Considering the power flow goes in the indicated direction, different things influence this high cost.This could be due to the need of replacing the distribution transformer, or a new cable.5

The connection problem for SP Energy Networks and its clients6Limited visibility of network capacityLimited information of the connections technical and economical feasibility

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The solution: Online Curtailment Analysis Tool (OCAT)Visualisation of network capacityActive Network Management supportReal time generation control7Non-firm connection

Using OCAT capacity estimation

Firm450kCF 34.5%OriginalCapacity Factor34.5%Non Firm275kCF 33.5%Firm375kCF 34.5%Non Firm225kCF 33.5%Firm575kCF 34.5%Non Firm150kCF 29.5%Estimation!

With OCAT, the customer can estimate the available capacity and will also have the option to opt for a non-firm connection if the reduced capacity factor makes it feasible.8

OCAT Demo9

10Network Model dataSPCorporateGeodatabaseOCAT Exporter

ArcObjectsArcFMOCATSGS Power AnalysisArcGIS Online SPEN cloud service

Follow the animation to explain step by step.10

Power Analysis behind OCATSmarter Grid Solutions provide world-leading Active Network Management solutionsReal-time, autonomous, deterministic control of Distributed Energy ResourcesSGS ANM technology deployed in SPEN Dunbar area to increase DG hosting capacity

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Power Analysis behind OCAT (cont.)SGS OCAT back-end applicationsManage circuit modelling and historical power-flow dataUse historical data to simulate operation of the network with new generation connected under ANM controlSimulate the control actions of ANM system to calculate a forecast level of export reduction (curtailment) for ANM-connected generators and derive time and cost of connection

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What is next?More complex analysisData auditing toolsTools for network designGreater coverage area

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The analysis could be extended to other technologies such as storage or combined generation More data auditing tools basedUsing OCAT GUI, power analysis can be done on the fly to help network designers to identify voltage, thermal constraints, etc.At the moment ocat is limited to the ARC area only as a trial13

ConclusionsOCAT is a new way to support generation connectionsElectrical network model data extracted from existing assetsMultidimensional approach to complex problems (GIS Power Analysis)

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OCAT ValueHelping SP to improve the service provided to their customersService available onlineCustomers can test multiple design themselvesSimpler understanding of the application process

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OCAT Value (continued)Helping SP to improve the generation network connection processHandling of feasible connection applications onlyOpen and transparent workingEfficient use of SP data and innovative technology

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Thank you for your attention.Questions?17