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?