OSI Regional Seminar 2008

Presented by:Kasen Huwa

Sr. System Analysts, Xcel Energy

Use of PI Process Book and Datalink Client tools for Energy Market Operations

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About Us Responsible for economic dispatch of the

generating fleet, energy and gas trading, risk management, and settlement accounting functions

Operate in the MISO market, SPP market and the PSCO bilateral market

Services 8 states and 3.3 million electricity customers

Generating capacity of about 16,000 MW Peak obligation load of about 20,000 MW No. 1 wind provider in the nation about 2,700 MW

Architecture of PI System

Current Implementation and Future Plans

PIPI HA CollectivePI HA Collective

PI

Operations/Trade Decision Support Application (RDB)

Internet

Internet

SPS PSCO NSP

Commercial Ops

EMS EMS EMS

OPC over ICCPOPC over ICCP OPC over ICCP

OPC over ICCP

PI to PI

RDBMSHTMLCustom VBA

PI HA Collective PI HA CollectivePI HA Collective

PI HA Collective

Operations/Trade Decision Support Application (RDB)

Internet

Internet

SPS PSCO NSP

Commercial Ops

DMZ

EMS EMS EMS

OPC over ICCPOPC over ICCP OPC over ICCP

OPC over ICCP

PI to PI

RDBMSHTMLCustom VBA

3rd Party Data

PI

Executive Process Book Displays

Information at the Finger Tips of CEOs, Presidents, VPs, Directors

and Managers

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Energy Markets Operations

Day Ahead Traders, Real Time Traders, Real Time Operators, and

Post Analysis

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Shared Display

Collaboration and Communication using PI tools

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Gas Nominations and Burn

5 different groups need access to the same information with different variables

Spreadsheets were emailed, data was copied and pasted, some manual input, phone calls occurred when unclear

Groups had a disconnect. They saw the same data in different ways so even phone calls were confusing

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Solution and Benefits Use PI Datalink with VBA code to put the data in PI

and then extract it into other spreadsheets Saved over 5 hours a week of manual entry and

copy/paste Decreased errors and provided information quicker Reduced email and phone traffic Allowed groups to understand the same data with

different variables

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Can be viewed at http://greenenergy.xcelenergy.com

Sharing data on the web

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Post Analysis

Using Datalink and Process Book

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Forecast - High Winds

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Scenarios - The Push - 12/24

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Scenarios - The Drop Off - 2/7

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Scenarios - A Dodge with a Push - 3/1

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Benefits Using PIExecutive communication of KPIsMulti-team collaborationContest ISO penalties Make real-time decisionsPost analysisSignificant wind forecast improvementEasy to update ongoing analysisUsers can pull their own data