Desenhando o futuro... Luiz Henrique de Castro Carvalho Chief Generation and Transmission Officer
Maximizing G&T results practices OPERATIONAL EFFICIENCY: AUTOMATING GENERATION AND TRANSMISSION MAXIMIZING ASSETS AVAILABILITY (Gafanhoto Hydro Plant) OPERATING ASSETS WITH SUSTAINABILITY (Irapé Hydro Plant) PREDICTIVE MAINTENANCE TECHNIQUES (Diagnostics, online monitoring, thermovision) PROJECT MANAGEMENT & ENGINEERING EXCELLENCE (Baguari and Cachoeirão Plants) 2/23
Maximizing G&T results practices OPERATIONAL EFFICIENCY: AUTOMATING GENERATION AND TRANSMISSION MAXIMIZING ASSETS AVAILABILITY (Gafanhoto Hydro Plant) OPERATING ASSETS WITH SUSTAINABILITY (Irapé Hydro Plant) PREDICTIVE MAINTENANCE TECHNIQUES (Diagnostics, online monitoring, thermovision) PROJECT MANAGEMENT & ENGINEERING EXCELLENCE (Baguari and Cachoeirão Plants) 3/23
Maximizing G&T results practices GENERATION AND TRANSMISSION AUTOMATION PROJECT STATUS Timetable for remote assistance in transmission substations YEAR TRANSMISSION SUBSTATIONS Nº FACILITIES 2008 São Gonçalo do Pará, Vespasiano 2, Barbacena 2, Bom Despacho 3, São Gotardo 2, Governador Valadares 2, Itajubá 3 e Ouro Preto 2 8 2009 Substations with remote assitance: Juiz de Fora 1, Itabira 2, Ipatinga 1, São Simão, Jaguara 345 e Porto Estrela Remote assistance to be brought forward: Lafaiete, Várzea da Palma, Montes Claros 2, Pimenta e Mesquita Nova Ponte, Itutinga, Três Marias, Emborcação, Jaguara 500 e Volta Grande 6 2010 Neves, Barreiro e Taquaril 3 Note: Other substations are operated by switching or remote command. 6 5 4/23
Maximizing G&T results practices GENERATION AND TRANSMISSION AUTOMATION PROJECT STATUS Timetable for installing remote assistance at Small Hydro Plants YEAR SMALL HYDRO PLANTS Nº FACILITIES 2008 2009 Gafanhoto, Anil, Marmelos, Poço Fundo, São Bernardo e Xicão Pai Joaquim, Piau, Cajuru, Rio de Pedras, Tronqueiras, Poquim, Dona Rita e Peti 6 8 Note: The planning of remote assistance to the Small Hydro Plants (PCHs) has been expanded from 11 to 14 plants (2008-9). Remote assistance for the other plants will depend on the results of re-potentializing studies in progress. 5/23
GENERATION AND TRANSMISSION AUTOMATION PROJECT STATUS Timetable for implementation of remote assistance in major hydro plants YEAR LARGE HYDRO PLANTS Nº FACILITIES 2008 Miranda e Irapé 2 2009 Nova Ponte, Funil, Volta Grande e Queimado 4 2010 2011 Três Marias, Rosal, Igarapava, Aimorés, Emborcação, Jaguara., Capim Branco I e II Salto Grande, São Simão, Itutinga, Camargos e Sá Carvalho 8 5 6/23
OPERATIONAL EFFICIENCY: AUTOMATING GENERATION AND TRANSMISSION MAXIMIZING ASSETS AVAILABILITY (Gafanhoto Hydro Plant) OPERATING ASSETS WITH SUSTAINABILITY (Irapé Hydro Plant) PREDICTIVE MAINTENANCE TECHNIQUES (Diagnostics, online monitoring, thermovision) PROJECT MANAGEMENT & ENGINEERING EXCELLENCE (Baguari and Cachoeirão Plants) 7/23
MAXIMIZING ASSETS AVAILABILITY (2008 FLOODS) Pará River basin up to Conceição do Para 8/23
MAXIMIZING ASSETS AVAILABILITY Flood at Gafanhoto Hydro Plant 9/23
MAXIMIZING ASSETS AVAILABILITY Flood at Gafanhoto Hydro Plant 10/23
MAXIMIZING ASSETS AVAILABILITY Flood at Gafanhoto Hydro Plant 11/23
MAXIMIZING ASSETS AVAILABILITY Gafanhoto Small Hydro Plant Floods of 1997 8 and 2008 MACHINE DOWNTIME (hours) GENERATING UNIT 1997/1998 (h) 2008 (h) 1 18,144 60 2 9,432 55 3 1,224 55 4 10,896 58 TOTAIS 39,696 228 In the flood of 1997-8, unit 1 was already isolated and under maintenance due to the burnout of the generator stator on September 27, 1996. The period measured is from the date of the flood to the generator s return to the system (January 3, 1997 to January 28, 1999). DETAILS OF COSTS (R$) TYPE 1997/1998 (R$) 2008 (R$) Investments 1,250,000.00 0 Other costs 1,700,000.00 26,872.00 TOTAL R$ 2,950,000.00 26,872.00 Figures for 1997-8 are estimated. 12/23
OPERATIONAL EFFICIENCY: AUTOMATING GENERATION AND TRANSMISSION MAXIMIZING ASSETS AVAILABILITY OF ASSETS (Gafanhoto Hydro Plant) OPERATING ASSETS WITH SUSTAINABILITY (Irapé Hydro Plant) PREDICTIVE MAINTENANCE TECHNIQUES (Diagnostics, online monitoring, thermovision) PROJECT MANAGEMENT & ENGINEERING EXCELLENCE (Baguari and Cachoeirão Plants) 13/23
OPERATING ASSETS WITH SUSTAINABILITY A big challenge: Social and Environemntal Actions at Irapé Hydro Plant 14/23
OPERATIONAL EFFICIENCY: AUTOMATING GENERATION AND TRANSMISSION MAXIMIZING ASSETS AVAILABILITY (Gafanhoto Hydro Plant) OPERATING ASSETS WITH SUSTAINABILITY (Irapé Hydro Plant) PREDICTIVE MAINTENANCE TECHNIQUES (Diagnostics, online monitoring, thermovision) PROJECT MANAGEMENT & ENGINEERING EXCELLENCE (Baguari and Cachoeirão Plants) 15/23
MAXIMIZING USEFUL LIFE OF PLANT Preventive monitoring + Best maintenance and operation practices (Equipment sealing, oil treatment, etc) Increase in useful life of generation and transmission assets Step up of transformers at Três Marias Hydro Plant Expected nominal useful life: 30 years Useful life util today s date: 49 years Further useful life now expected: + 24 years 16/23
OPERATIONAL EFFICIENCY: AUTOMATING GENERATION AND TRANSMISSION MAXIMIZING ASSETS AVAILABILITY (Gafanhoto Hydro Plant) OPERATING ASSETS WITH SUSTAINABILITY (Irapé Hydro Plant) PREDICTIVE MAINTENANCE TECHNIQUES (Diagnostics, online monitoring, thermovision) PROJECT MANAGEMENT & ENGINEERING EXCELLENCE (Baguari and Cachoeirão Plants) 17/23
PROJECT MANAGEMENT EXCELLENCE (PMI ++) BAGUARI Location: Rio Doce Gov. Valadares MG Area: 16,70Km 2 Capacity:140 MW Assured energy: 80.2 MW Turbines: 4 x 35.9 MW 18/23
PROJECT MANAGEMENT EXCELLENCE (PMI ) To manage construction of new assets: Quest for excellence using PMI (Project Management Institute) methods To manage const ence using PMI (Project Baguari Hydro Plant: Creation of Projects Office, to provide: Greater management control Bonus payment linked to defined targets with Consortium s employees Integrated view of project implementation, including environmental aspects (Project Magament Plan preparation, inlcuding environment) Risk management with qualitative and quantitative analysis, including monitoring and risk response plan The 54-day project delay was brought on-schedule. Generation will now probably be delivered 60 days ahead. Baguari Hydro Bonus 19/23
PROJECT ENGINEERING EXCELLENCE CACHOEIRÃO Location: Rio Manhuaçu Pocrane and Alvarenga MG Área: 1,02Km 2 Capacity: 27MW Assured energy: 16.4 MW Turbine: 3 x 9 MW 20/23
PROJECT ENGINEERING EXCELLENCE Cachoeirão Small Hydro Plant: Generation: Initial Assured Energy=> 14.56 MW Assured Energy, after studies by Cemig Engineering approved by ANEEL => 16.37 MW Gain over initial value => 1.81MW (12.43%) Budget implementation: Initial budget proposed => 100% Winning bid of construction consortium, after project optimizations presented by Cemig Engineering, accepted by the enterprise consortium (CEMIG, Santa Maria Energética) => 87.59% of original Gain in relation to initial proposal => (12.41%) 21/23
THANK YOU! 22/23
Investor Relations ri@cemig.com.br Telephone: (55 31) 3506 5024 Fax: (55 31) 3506 5025