Planning for Big Things in Brazil

Barroso, L.A.; Porrua, Fernando; Thome, L.M.; Pereira, Milton

doi:10.1109/mpe.2007.904763

Cited by 17 publications

(9 citation statements)

References 6 publications

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“…Data in [5] for 220 kV transmission lines in Colombia suggest a specific capacity cost of around $200/MW-mile, including land and substation costs. Data in [6] for 500 kV transmission, assuming a thermal capacity of 2500 MW, yields costs in the range of $130/MW-mile to $400/MW-mile. This international data is broadly consistent with the U.S. data, except that the Colombian and Brazilian data is somewhat lower than the low end of the U.S. typical range of costs.…”

Section: B Specific Capacity Costs Of Existing Transmissionmentioning

confidence: 99%

Estimates of Comparative Costs for Uprating Transmission Capacity

Baldick

O’Neill

2009

IEEE Trans. Power Delivery

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Section: B Specific Capacity Costs Of Existing Transmissionmentioning

confidence: 99%

Estimates of Comparative Costs for Uprating Transmission Capacity

Baldick

O’Neill

2009

IEEE Trans. Power Delivery

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“…14 In some countries, such as Brazil, new TLs are contracted by auctions through long-term contracts, in which the winner is the competitive agent that requires the lowest annual revenue to construct and operating the TL for 30 years. 15 The use of mathematical optimization to support decision-making regarding investments in the electric power sector has been a constant practice over the years. Examples of recent work can be found in Refs.…”

Section: Introductionmentioning

confidence: 99%

“…The hiring and implementation of TLs projects are usually controlled by regulatory agencies, such as the Federal Electricity Regulatory Commission in the US, 13 the Brazilian Electricity Regulatory Agency (ANEEL) in Brazil, and the Council of European Energy Regulators, one of the most important regulatory entities in the European Union 14 . In some countries, such as Brazil, new TLs are contracted by auctions through long‐term contracts, in which the winner is the competitive agent that requires the lowest annual revenue to construct and operating the TL for 30 years 15 …”

Section: Introductionmentioning

confidence: 99%

Transmission towers spotting in power systems considering engineering and environmental aspects: A dynamic programming approach

Medeiros

Queiroz

Lima³

et al. 2021

Int Trans Electr Energ Syst

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In recent years, electricity transmission systems' planning has become a subject of significant discussions worldwide due to increasing investments in renewable power and the need to optimize resources. Planning results directly affect the price of electricity for the final consumers; therefore, it is necessary to determine precise, robust, and relevant plans for the system expansion.Optimization techniques have been successfully employed in several problems associated with transmission line expansion planning, with emphasis on electricity interconnections, routing studies, and tower spotting, among others. The use of these techniques is intended to support planning processes with information that will assist the analyst in the pursuit of defined goals. The present work proposes a methodology based on dynamic programming that seeks to obtain the optimal spotting of transmission towers considering environmental (type of land use, slope, and geotechnical class of the terrain) and engineering characteristics (minimum distance between the electric conductor and ground and tensions supported of each tower type) associated with the problem. The methodology is tested in two different case studies including a real transmission line project with 39 km of extension. The results obtained show, approximately, 3.8% of cost savings obtained using the proposed approach when comparing with the real transmission line project. We also note that it is possible to verify a great similarity between the tower arrangements defined in the real project and the optimal decisions generated by the proposed approach, demonstrating its usefulness as a tool to support decision-making in early stages of investment planning and long-term auctions.

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“…Recently, TNEP has been modeled through probabilistic method to keep security and reliability criteria as well as power market concepts [3][4][5][6][7][8]. The main focus of these methods is minimizing the total costs or investment capital, and maximizing in social welfare or investor's benefits [7][8][9][10]. Among these, system operating state method is introduced to evaluate reliability in the relatively simple way only with the expected generation capacity instead of complicated reliability indices such as LOLE and LOLP [11][12].…”

Section: Introductionmentioning

confidence: 99%

Transmission Network Expansion Planning Using Reliability and Economic Assessment

Kim¹,

Son²,

Kim³

2015

Journal of Electrical Engineering and Technology

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-This paper presents a probabilistic approach of reliability evaluation and economic assessment for solving transmission network expansion planning problems. Three methods are proposed for TNEP, which are reorganizing the existing power system focused on the buses of interest, selecting candidates using modified system operating state method with healthy, marginal and at-risk states, and finally choosing the optimal alternative using cost-optimization method. TNEP candidates can be selected based on the state reliability such as sufficient and insufficient indices, as proposed in this paper. The process of economic assessment involves the costs of construction, maintenance and operation, congestion, and outage. The case studies are carried out with modified IEEE-24 bus system and Jeju island power system expansion plan in Korea, to verify the proposed methodology.

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Planning for Big Things in Brazil

Cited by 17 publications

References 6 publications

Estimates of Comparative Costs for Uprating Transmission Capacity

Estimates of Comparative Costs for Uprating Transmission Capacity

Transmission towers spotting in power systems considering engineering and environmental aspects: A dynamic programming approach

Transmission Network Expansion Planning Using Reliability and Economic Assessment

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