A Comprehensive System of Power Management built on a solid foundation: OSISOFT PI

1. A Comprehensive System of Power Management built on a solid foundation: OSISOFT PI MARCH - 2009 IBERDROLA ENERGÍA MÉXICO

2. Agenda • Iberdrola • Site Configuration • Local PI Functions, and ACE Server • Central PI Configuration, and its functions • Smart Tools • Integration with Management System Iberdrola Energía México

3. IBERDROLA IBERDROLA: Hidroeléctrica Española Fusion - Iberduero (1991) It is one of the largest industrial corporations in Europe by market capitalization, sales, and profits Global Services Operator through profitable growth strategy, and value creation for customers, and investors Key elements of this strategy: international expansion, efficiency improving, and product diversification Iberdrola Energía México

4. Corporate News • IBERDROLA reaches an integration agreement with SCOTTISHPOWER to create an European leader of enterprise value of nearly 64,000 Million €, where the new group has 36,600 megawatts (MW) of installed capacity, of which more than 6,000 MW are wind power, and adds 21.4 million electric delivery points • IBERDROLA won the bid of CFE for the refurbishing, and modernization of its Laguna Verde Nuclear Central in the state of Veracruz. • Recently Iberdrola started the operation of 80 MW of Wind Power at La Ventosa in Oaxaca, Mexico under the Self-Supply modality Iberdrola Energía México

5. Investments in Latin America • Power Distribution: • Brasil: Coelba • Celpe • Cosern • Guatemala: EEGSA • Bolivia: Electropaz • Elfeo Water distribution: Chile: Essal Uruguay: Aguas de Maldonado • PowerGeneration : • México: Monterrey III • Altamira III & IV • Altamira V • Femsa y Titán • Enertek (Altamira) • La Laguna • Tamazunchale • La Ventosa • Brazil: Itapebí • Guatemala: Geca • Chile: Río Duqueco GasDistribution : Colombia: Gas Bogotá Gas Oriente México: GNM Iberdrola Energía México

6. Torreón Monterrey Altamira Tamazunchale México DF Oaxaca Gas Pipeline Investments in Mexico • Monterrey Region • Monterrey: 1000 MW • Femsa & Titán: 37 MW • La Laguna: 500 MW • Tamazunchale* 1135 MW • Altamira Region • Altamira III & IV: 1036 MW • Altamira V 1121 MW • Enertek: 120 MW • Oaxaca 80 MW • TOTAL: 5029 MW • * Largest Combined Cycle Plant in the country. Iberdrola Energía México

7. More than 5,000 MW in operation since 2007 6,000 MW 5,000 5,000 4,000 3,000 2,093 2,000 1,157 1,000 0 2002 2003 2007 • Enertek • Monterrey III • Femsa-Titán • Altamira III y IV • Altamira V • Tamazunchale • La Ventosa Installed Capacity in México Iberdrola Energía México

8. Dulces Nombres Combined Cycle Plant Iberdrola Energía México

9. OSIsoft PI in Iberdrola Iberdrola Energía México

10. DCS & OTHERS GENERATION PLANT Site Configuration Various Interfaces Local PI Server ACE Server Operation (Plants) Iberdrola Energía México

11. Local PI Server Functions • Reads, and stores between 10,000 & 20,000 tags, which change in value at a frequency of up to one second. This is done in the PI of each plant, through various interfaces • Provides users access to the necessary information to generate daily reports • Provides information to users for efficiency analysis of turbines, and in general to see the performance of the plant in real-time • The users of the plants (like plant operators) have access to information via ProcessBook & DataLink, and VBA for Excel, through specialized templates Iberdrola Energía México

12. ACE Server Functions • Stores the information in 5m frequency tags • Verifies that the information does not contain errors, and notifies if so (through e-mails) • Runs the critical process of Mathematical Model • The information processed is of critical mission since it is used to bill our primary customer: “Comisión Federal de Electricidad” • Problems with ACE running on Local PI server Iberdrola Energía México

13. DCS & OTHERS Various Interfaces Using the 5minute data generated, a guaranteed efficiency is calculated and used to for the main invoce to CFE: fuel The local PI server is reading in real time 15,000 tag changing every second Local PI Server When running the Mathematical Model (MM), ACE is reading around 60 of those tags For every tag in the MM, ACE would make calculations (averages, additions, conditionals, etc) and stores info for every 5m Problems Running ACE on Local Server With this work load, the server stopped the ACE service (the MM) and calculations stopped suddenly. The server continued collecting data from the DCS Iberdrola Energía México

14. Error was corrected to allow for precise measure. Oscillation was detected in gas temperature measurement, which caused an incorrect compensated flow calculation Using PI in plants: Flow Measurement 1% deviation in the gas measurement from this plant represents over 300 KUSD/month when the gas price is around 6.50 USD/MMBTU Iberdrola Energía México

15. Using PI in plants: Real-time Information • Access to critical information with just one click Iberdrola Energía México

16. PI Functions with VBA for Applications (Add-In) and Excel • Import information efficiently from PI, and process it to generate result data (usually results in values for every 5 minutes) • Implement Procedures to data correction • Send verified data, and/or corrected to a relational database • This is done for the mathematical models, and to track the gas consumption Iberdrola Energía México

17. VBA (Add-In) and the Mathematical Model • Mathematical Model • Data download by periods of time • Data correction Signal Losses, and inaccurate measurement • Graphical view of input and output tags of the Math Model • This is done using OSISOFT PI SDK Iberdrola Energía México

18. Flow of Information in case of Data Correction • When there is incorrect data within PI (because of problems in any signal) for the mathematical model, a data correction procedure is executed • We read the data and correct it as per the agreement made with CFE and then write the correct data to a relational database • The mathematical model is run again from the database • The guaranteed efficiency is corrected * We cannot change the values stored in the PI server, because of the agreement with CFE. Iberdrola Energía México

19. USERS IN THE NETWORK ProcessBook DataLink Web Applications VB .NET MONTERREY III ALTAMIRA V PCM TAMAZUNCHALE Central ACE ALTAMIRA III Y IV LAGUNA II ENERTEK CENTRAL PI CENTRAL PI Iberdrola Energía México

20. CMDS Spain The CMDS manages, among many other things, a PI (or super PI) with the information of all combined cycles of Iberdrola FIREWALL FIREWALL FIREWALL SIGEN SERVER, SQL DATABASE DACPEE, CFE (DF) PARTNERS USERS Interface with Spain, with CFE, and other Systems Iberdrola Energía México

21. Central PI Functions • Centralizes general access information on a single PI server, through interfaces “PI to PI” • In this way, prevents the local servers suffering of work overload • Redundancy of critical information • It has a very focused approach to management • Stores all information of mathematical models of CFE, and User Partners • Allows addition and/or averaging the information of various plants to register information as “Total Generation of Iberdrola in Mexico” and real-time visualization • Serves like a gateway to other administrative systems Iberdrola Energía México

22. CENTRAL PI Iberdrola Energía México

23. CENTRAL PI Iberdrola Energía México

24. CENTRAL PI Iberdrola Energía México

25. COGENERACIÓN MTY MONTERREY III ALTAMIRA III Y IV ALTAMIRA V ENERTEK CENTRAL PI LAGUNA II TAMAZUNCHALE DACPEE (DF) SIGEN SERVER CENACE (MONTERREY) FIREWALL CC&M USERS PARTNERS IBERDROLA MEXICO NETWORK USERS PARTNERS OPERATION (PLANTS) … LOCAL PI BY CENTRAL PLANNING, AND CONTROL (DF) SIGAF ENERGY MANAGMENT (MONTERREY) EXTERNAL USERS Iberdrola Energía México

26. Iberdrola Energía México