ONS in the Brazilian Power Industry

Transcription

1 ONS in the Brazilian Power Industry Visit of Tractebel Rio de Janeiro April 19 th, 2009 Hermes J. Chipp General Director

2 The Brazilian Power Sector Institutional Structure

3 The Brazilian Power Sector Institutional Structure CNPE National Council for Energy Policies Dec. Nr. 3520/2000 National policies and guidelines for Energy (electricity, oil, gas) Laws Nrs /2004 and /2004 CNPE MME ONS ANEEL ANEEL National Agency for Electric Energy Law Nr. 9427/1996 MME Ministry of Mines and Energy EPE ANA ANP EPE Energy Research Company Dec. Nr. 5184/2004 Engineering company / System expansion planning CMSE Power Sector Monitoring Committee Dec. Nr 5175/2004 Monitoring and evaluation of supply security and continuity CMSE CCEE Regulating and fiscalizing CCEE Electric Power Trading Chamber Dec. Nr. 5177/2004 Brazilian Power-Ex ONS Operador Nacional do Sistema Elétrico Law Nr /2004 Brazilian ISO Generation and Main Grid system operations

4 Characteristics of the Brazilian Interconnected Power System

5 Characteristics of Hydro Production Multi-owned system: 31 public and private companies own 126 hydro plants (>30MW) in 14 large basins There are presently 62 hydro plants with reservoirs (monthly regulation or above), 60 run-of-river plants and 4 pumping stations 25 new plants are under construction adding ~ 25,000MW to the system at ,500 km Cemig Furnas AES-Tiete CESP CDSA Consiorciums Copel 3,500 km Grande River Paranaiba River Tiete River Interdependence in generation requires centrally coordinated operation Tractebel ITAIPU BINATIONAL Iguaçu River Paranapanema River

6 Energy production in the BIPS Share of hydroelectric power in total energy production depends on the availability of hydro resources both in terms of energy inflows to the power plants and of storage volumes of system reservoirs. Inflows in 2008 were 99.1% of long term average in the Southeast/Mid West region, 72.3% in the Northeast, 71% in the North and 91.5% in the South. An energy dependent society: Energy demand in 2008 reached TWh 5.49% 1.92% 3.11% 0.86% Hydro Natural Gas Thermal Conventional Thermal Nuclear Wind/ Biomass/ Other 88.62%

7 The BIPS Transmission Grid Large-size: ~ 90,000 km Multi-owned: 59 agents own equipments of above 230 kv New challenge is the interconnection of the states of the Amazonian Region TLs 230 kv (km) ,033 90, ,800 Substations Transform. capacity (GVA) ,7

8 Acre-Rondonia System: integrated Porto Velho Samuel Rio Branco Abunã Ariquemes Jaru Block A Bid 001/2006. Trunk-Line 230 kv Duplication (associated to the Interconnection).. TL 230 kv SAMUEL ARIQUEMES (CS 153 km).. 01 Line Reactor 230 kv 20 Mvar in ARIQUEMES.. TL 230 kv ARIQUEMES - JI-PARANA (CS 164 km).. 01 Line Reactor 230 kv 20 Mvar in JI-PARANA.. TL 230 kv JI-PARANA P. BUENO (CS 118 km).. 01 Line Reactor 230 kv 20 Mvar in P.BUENO.. TL 230 kv P.BUENO VILHENA (CS 160 km).. 01 Line Reactor 230 kv 20 Mvar in VILHENA Ji-Paraná Pimenta Bueno Block A Bid 001/2006. Interconnection.. 01 TL 230 kv VILHENA JAURU (CD 354 km).. 02 Line Reactors 230 kv 2x30 Mvar in VILHENA.. 02 Line Reactors 230 kv 2x30 Mvar in JAURU Vilhena Jauru BIPS

9 Tucurui Manaus Macapa Interconnection MACAPÁ ORIXIMINÁ LT 500kV CD 374 km LT 230kV CD 95 km LARANJAL JURUPARI CARIRI ITACOATIARA LT 500kV CD 263 km XINGU Rurópolis Transamazônica Altamira TUCURUÍ 500 kv 230 kv

10 Rio Branco 305 km 160 km 30km Back-to-back 2x400MW 41km 150km 165km Samuel 118km Madeira River Power Plants System Connection Ariquemes Jiparana Pimenta Bueno 160km 354km Vilhena Bid on Nov. 11th, 2008: DC alternative won +600 kv 500 kv 230 kv Cuiaba Ribeiraozinho Trindade Santo Antonio 44 x 71,6MW = MW Rio Verde Itumbiara Jirau 44 x 75MW = MW Araraquara 500 kv Atibaia 350 km N. Iguaçu 3 x kv 440 kv 138 kv 440 kv

11 Operador Nacional do Sistema Elétrico ONS Legal Attributions

12 ONS Legal Attributions ONS is a non-profit private organization, with the following mission: To operate the Brazilian Interconnected Power System in an integrated basis, with transparency, equanimity and neutrality, in order to ensure a continuous, economical and safe electric power supply to the country. The BIPS was conceived, planned and constructed considering the integrated utilization of the generation and transmission resources of all agents, in order to ensure the benefits of synergism and optimization. The integrated operation of BIPS is the only way to ensure minimum operation costs and adequate reliability of power supply.

13 ONS manages a network of Agents and Installations Hydrothermal system ~ 200 plants 30 MW > 1,000 generating units 89 Agents Main Transmission Grid 90,316 km of lines above 230kV 377 substations 59 Agents Distribution + Free Consumers 51,870 MWmed Energy Demand in Agents Generation Transmission Consumption System operation by ONS Equipment operations by G and T utilities Bulk supply over 1,000 points connect Main Grid and discos Operations by Distributers Consumers supply Overall fiscalization by ANEEL (*)Total number is 211. Some agents are integrated utilities

14 Attributions and Macrofunctions of ONS Attributions established by Decree of 05/14/2004 Operations planning and programming and the centralized generation dispatch Control Center Supervision and coordination Supervision and control of national and international interconnections Administration of transmission services, open access to the grid and ancillary services Proposition of reinforcements and expansion of the main T grid Definition of the main T grid operating rules Macrofunctions Transmission Administration Operations Planning and Programming Real Time Operation Coding and legal basis Grid Procedures

15 ONS and the Grid Procedures

16 ONS Agents Operational Relationship 25 modules ONS Elaboration Grid Procedures Participation Agents Approval ANEEL ONS Grid Procedures establish the legal basis for methodologies, criteria and technical requirements, as well as responsibilities of ONS and agents for the processes and products associated to the fulfillment of its legal attributions.

17 Modules of the Grid Procedures 1. General Introduction to ONS and the Grid Procedures 2. Minimum Requirements and Performance Indicators for The Main T Grid Installations 3. Open Access to the Transmission Grid 4. Expansion and reinforcements of the Main T Grid 5. Load Forecasting 6. Electrical Studies for Operations Planning and Programming 7. Energy Management Studies for Operations Planning 8. Daily Operations Scheduling 9. Hydro Resources and Meteorology 10. Operations Procedures Manual 11. Protection and Control 12. Metering for Billing 13. Telecommunications

18 Modules of the Grid Procedures 14. Ancillary Services Management 15. Transmission Services and Charges Management 16. Maintenance Administration 18. Computer Models and Systems 19. Identification Treatment and Penalties for Nonconformities 20. Glossary and Technical Terms 21. Studies for Grid safety, System Control and Integration of Facilities 22. Disturbances Analysis 23. Studies Criteria 24. Process for the Integration of Facilities 25. SIN Operation reports and Performance Indexes 26. Power Plant Operation Modes

19 ONS Organizational Structure

20 ONS Governance 211 Participating Agents Centrally dispatched Gen. Transmission Agents Distribution Agents Energy Exporters Energy Importers Free Consumers (connected to the main grid) Consumers Councils Ministry of Mines and Energy Production 28,000 votes: 10,000 for Production and Consumption 8,000 for Transmission General Assembly Transmission Consumption Two representatives of Consumers Council and one of MME take part in the General Assembly, without voting rights. Board of Directors Production 5 members 5 substitutes Transmission 4 members 4 substitutes Consumption 5 members 5 substitutes Govermt/MME 1 member 1 substitute Fiscal Council Members of the Board of Directors and Fiscal Council are elected by voting in each category Executive Board

21 Organizational Structure of ONS General Assembly Board of Directors Fiscal Council EXECUTIVE BOARD General Director Strategic Planning Marketing & Communications Legal Support Regulatory Support Risks Management General Secretary Operations Planning and Scheduling Director Transmission Services Administration Director Operation Director Corporate Affairs Director Operations Planning Scheduling Electrical Studies Load Forecast Development of Models Hydrological Studies Grid Administration Grid Expansion Open Access to T Grid Contracts Settlement of Charges Pre-0peration Real Time Post-operation Norms and Instructions Human Resources Finances Administration IT Management

22 Chain of Activities at ONS Input from associate agents Grid procedures Operation Rules Proposals for Expansions & Reinforcements Main T Network 3 years ahead Open Access & Connection as requested Operations Planning Up to 5 years ahead Energy Scheduling Monthly & Daily Operation Pre Operation Real Time Operation Post Operation Daily / Real Time Administration, Accounting & Settlement of T Services & Charges Associate agents society

23 ONS Resources and Offices North/NE Branch Recife ONS funding comes from a share of the charges for the use of the transmission system (90%) plus contributions from associate members (10%) Brasilia 2008 Budget: Expenses/Invest.:R$ 319 million South Branch Florianópolis Central Office Rio de Janeiro Nr. of employees: with university degree 402 engineers

24 ONS processes and products

25 How ONS accomplishes its mission To minimize the probability of energy shortages and operation costs Continuity of Supply Thermal dispatch for grid safety requirements Electric Safety To avoid the occurrence and effects of blackouts Optimal management of reservoir system operation Hydrothermal dispatch Operation of generation facilities and of Main T Grid System Optimum