ltra data collection and analysis process. data collection process ero-ltra2008.xls workbook is...
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LTRA Data Collection LTRA Data Collection and Analysis Processand Analysis Process
Data Collection ProcessData Collection Process
ERO-LTRA2008.xls workbook is sent as an attachment to the Data Request letter
Workbook is to be filled out by regions and subregions
Data submissions due to NERC by March 31
Notification of data corrections by April 16
Corrected submissions due by April 30
Data Collection ProcessData Collection Process
Workbooks are copied to server folder and renamed
Data is extracted from workbooks and imported into an Access database
Data is queried and exported to Excel
Tables and charts are inserted into a draft LTRA report
LTRA Data Collection TimelineLTRA Data Collection Timeline
NERCData Request
LetterFebruary 6
Regional Managersand Data Coordinators
RegionalData Submissions
March 31NERC
TechnicalAnalyst
7+ weeks
2 weeks
Data Corrections
April 16Regional
Data Coordinators2 weeks
Corrected DataSubmissionsApril 30
NERCTechnicalAnalyst
6 weeks
Draft Report June 3
Analysis, Charts and
Tables
RAS
Data Analysis ProcessData Analysis Process
Tables and Charts
• Compare to previous year’s data
Identify trend differences
Flag and follow up on outliers
• Review demand and capacity projections
Check for consistency with the self-assessment text
• Review capacity margin trends
Identify when curves drop below target
Check for consistency with the self-assessment text
NERC/EIA Data InterfaceNERC/EIA Data Interface
EIANERC ES&D ES&D
Generator Owners & Operators NERC Regions
LTRA Data 860 Data
411 Data
860 Data
KEYNERC = North American Reliability CorporationEIA = Energy Information AdministrationES&D = Electricity Supply & Demand database & Unified Generator Database860 = Annual Electric Generator Report (US only)411 = Long-Term Generation & Supply Data (US Only)LTRA = Long-Term Reliability Assessment Data Collection (Contains 411 Data)
All DataAll Data CA/MXGenerator Data
Data Analysis ProcessData Analysis Process
Additional Data Queries
• Support emerging issues
• Identify industry trends
• Ad-hoc
Other Data ActivitiesOther Data Activities
Electricity Supply and Demand (ES&D)
• LTRA data exported to Excel
• Includes historic capacity and demand data since 1990
• Contains EIA-860 – Generator data
• Available for purchase NERC members - FREE
Regional Council members - FREE
Government agencies - FREE
Educational Institutions - FREE
• Provide support
ProblemsProblems
Lack of Consistency
• Data and definition revisions
• Output to tables and charts
• Year to year comparison are cumbersome
• Supporting questions and teaching the world
No IT Support
• VBA hack
DCWG SupportDCWG Support
Process Improvement
• Helpful tools or applications?
• Any suggestions?
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