Suite aux réformes des marchés électriques, la question du market design, c’est-à-dire l’étude des nouveaux marchés destinés à remplacer l’ancien monopole, est devenue centrale dans la littérature économique. Toutefois, les caractéristiques techniques de l’électricité rendent cette tâche complexe et l’intervention des pouvoirs publics est souvent nécessaire pour établir les règles du jeu efficaces que les acteurs de marché devront suivre. Cela explique pourquoi le market design demeure un sujet d’actualité. Cette thèse contribue aux discussions actuelles en étudiant plusieurs architectures de marché à mettre en place afin d’assurer la fiabilité du système électrique de la façon la plus efficace.La fiabilité est d’abord étudiée sous sa dimension de court terme, appelée sûreté. Pour garantir un équilibre en temps réel, l’opérateur du système doit s’assurer de disposer d’un niveau suffisant de réserves: c’est l’objectif du modèle de sûreté. Dans cette thèse, les impacts économiques induits par un changement de modèle de sureté pour le système électrique français sont évalués. Une modélisation de type Agent-Based est développée pour simuler les décisions des acteurs sur plusieurs marchés de court terme. Les résultats montrent que le modèle de sureté français actuel conduit à des coûts inférieurs à ceux du modèle alternatif mis en œuvre dans d’autres pays européens. Le maintien du modèle actuel en France apparait donc justifié.La dimension long terme de la fiabilité, à savoir l’adéquation, est ensuite étudiée. Les performances économiques d’un marché de capacité et d’un mécanisme de réserve stratégique, deux solutions conçues pour résoudre le problème d’adéquation, sont comparées. Afin de considérer la nature cyclique des investissements, ces mécanismes sont étudiés d’un point de vue dynamique par l’intermédiaire d’une modélisation de type System Dynamics. Celle-ci simule les décisions d'investissements et de fermetures prises par les acteurs de marché, en considérant leurs comportements imparfaits. Les principaux résultats montrent que le marché de capacité résout la question de l'adéquation à un coût moindre. / Following power market reforms, market design, i.e. the study of new markets to replace efficiently the previous monopoly, becomes central in the economic literature. However, due to several technical characteristics of electricity, this task is complex. A third party is then required to help design these markets in an efficient way and to set the rules under which private decentralized market players will interact. This complexity explains why market design remains a work in progress. This thesis contributes to the current discussions by giving insights on the most efficient market designs to implement to ensure the reliability of power systems.A first focus is made on the short-term dimension of reliability, i.e. the security of power systems. To maintain a balanced system, the system operator has to ensure the availability of a sufficient level of reserves in real time: this is the aim of the security model. In this thesis, a quantitative assessment of the economic impacts that a transition to a different security model would have for the French power system is carried out. An agent-based modelling is developed to simulate the decisions of profit-maximizing players on several short-term markets. Simulations show that the current French security model results in lower costs than the alternative one implemented in several European countries, and should therefore be maintained for the French power system.A second focus is made on the long-term dimension of reliability, i.e. the adequacy. The economic performances of a capacity market and a strategic reserve mechanism, two mechanisms designed to solve the adequacy issue, are compared. In order to capture the cyclical nature of investments, these mechanisms are studied from a dynamic point of view. To this end, a long-term model is developed based on a System Dynamics approach. It simulates the investment and shutdown decisions made by market players considering their imperfect behaviours. Main results show that the capacity market solves the adequacy issue at a lower cost than the strategic reserve mechanism.

Deploying wind power to a larger extent is one solution to reduce negative environmental impacts of electric power supply. However, various challenges are connected with increasing wind power penetration levels. From the perspective of transmission system operators, this includes balancing of varying as well as - to some extent - uncertain generation levels. From the perspective of power generating companies, changes in the generation mix will affect the market's merit order and, hence, their profits. This thesis focuses on provision and use of flexibility in the Nordic electricity market. First, this thesis studies wind power variations and accuracy of wind power forecasts in Sweden using statistical methods. Even though today’s wind penetration levels are still low in Sweden, power systems and electricity markets have to cope with these characteristics of variations and forecast errors to a larger extent in future. Second, it investigates to which extent an increased exchange and use of flexibility that is available in the intraday time-frame could efficiently facilitate system balancing and whether this would also be profitable from the power generating companies' perspective. Here, a simulation model is developed that reflects important aspects of production planning and trading decisions in the intraday time-frame. In a first case study, it is shown that the benefits of internal rescheduling strongly depend on the costs to adjust production plans in the intraday time-frame as compared to real-time. In a second case study, it becomes evident that trading flexibility in the intraday time-frame can reduce the need for system balancing more efficiently than internal rescheduling within each balance responsible party. Motivated by the positive gains of intraday trading and the challenge of appropriately modelling continuous intraday markets, trading activity and price development on Elbas is investigated. The results provide insights into trading behaviour on a continuous intraday market and show that trading is not always in accordance to the power system's physical situation. To the extent to which better information and adaptations in the market design could improve the market participants' base for trading decisions, policy recommendations and further research questions areas suggested. / Att använda vindkraft i en större utsträckning är en möjlighet att minska elproduktionens negativa miljöpåverkan. Det finns dock också olika utmaningar med stora mängder vindkraft. Från ett systemperspektiv gäller det till exempel att hålla balansen mellan tillförsel och konsumtion av el. Från elproducenternas perspektiv bör vindkraftens påverkan på elmarknaden nämnas eftersom det påverka aktörernas vinster. Avhandlingen titta närmare in i hur man kan få tillgång till mer flexibilitet på produktionssidan. Avhandlingen består av tre delar. För det första undersöks variationer och prognosfel av vindkraft i Sverige med hjälp av statistiska metoder. Även om andel vindkraft hittills är låg i Sverige, behöver elsystemet och elmarknader i framtiden hantera samma egenskaper av själva variationer och prognosfel som idag men i en större utsträckning. För det andra undersöks hur den flexibiliteten som finns i tidshorisonten några timmar innan leveranstimmen kan utnyttjas för att integrera vindkraften på ett sätt som är både fördelaktigt från systemets och från aktörernas perspektiv. Undersökningen sker med hjälp av en simuleringsmodell som omfattar viktiga delar i produktionsplanering och intradayhandel. I en fallstudie uppvisas att vinster av intern omplanering är i högsta grad beroende på kostnadsskillnaden mellan omplanering några timmar innan leveranstimmen och anpassning av körscheman under själva leveranstimmen. Resultat av ytterligare en fallstudie uppvisar att det är betydligt billigare och mer effektivt att använda intradayhandel istället för intern omplanering för att utnyttja den befintliga flexibiliteten och för att reducera obalanser som systemoperatörer annars behöver ta hand om under leveranstimmen. Detta är en anledning till att undersöka handelsmönster på Elbas som är en intradaymarknad med kontinuerlig handel. En annan anledning till den här tredje delen är utmaningarna i att modellera kontinuerlig intradayhandel. Studien beskriver handelsaktiviteten på Elbas och hur priserna utvecklas under handelstiden. Ett resultat är att handeln inte alltid återspeglar den fysiska situationen i elsystemet. I den utsträckningen som ett snabbare informationsflöde och förändringar i marknadsdesignen kunde förbättrar aktörernas underlag för intradayhandel, föreslås förbättringar och öppna forskningsfrågor. / <p>QC 20150911</p> / Elektra 36141: Korttidsplanering av vatten-värmekraftsystem vid stora mängder vindkraft: System-perspektivet

Submitted by Felipe Guimaraes Uchoa (felipe.g.uchoa@gmail.com) on 2015-02-19T15:38:56Z No. of bitstreams: 1 Dissertação_FelipeUchoa_MPFE_19.02.2014.docx: 155271 bytes, checksum: 623619d1f24dfa627add019a29b984e7 (MD5) / Rejected by Renata de Souza Nascimento (renata.souza@fgv.br), reason: Felipe, O trabalho não está de acordo com as normas da ABNT. Segue abaixo, o que deverá ser alterado: - O arquivo deve estar em PDF e não em Word (conforme a postagem). - Nas páginas onde constam SÃO PAULO 2014, deverá alterar o ano para 2015 (pois a apresentação ocorreu em 2015). - Nas páginas dos Agradecimentos/ Resumo/ Abstract, o texto deve estar alinhado, sem os espaços dos parágrafos. Aguardo as alterações e nova submissão. Att Renata on 2015-02-19T16:16:02Z (GMT) / Submitted by Felipe Guimaraes Uchoa (felipe.g.uchoa@gmail.com) on 2015-02-19T16:28:37Z No. of bitstreams: 1 Dissertação_FelipeUchoa_MPFE_19 02 2014.pdf: 445064 bytes, checksum: be6196a10fa113b69d2388db5149cc7b (MD5) / Rejected by Renata de Souza Nascimento (renata.souza@fgv.br), reason: Felipe, Falta somente ajustar os textos. Encaminharei por e-mail. Att Renata on 2015-02-19T17:22:15Z (GMT) / Submitted by Felipe Guimaraes Uchoa (felipe.g.uchoa@gmail.com) on 2015-02-19T17:41:56Z No. of bitstreams: 1 Dissertação_FelipeUchoa_MPFE_19 02 2014.pdf: 445771 bytes, checksum: 7d62e511d073b5de4cf00c2a38d2db77 (MD5) / Approved for entry into archive by Renata de Souza Nascimento (renata.souza@fgv.br) on 2015-02-20T10:11:57Z (GMT) No. of bitstreams: 1 Dissertação_FelipeUchoa_MPFE_19 02 2014.pdf: 445771 bytes, checksum: 7d62e511d073b5de4cf00c2a38d2db77 (MD5) / Made available in DSpace on 2015-02-20T12:06:22Z (GMT). No. of bitstreams: 1 Dissertação_FelipeUchoa_MPFE_19 02 2014.pdf: 445771 bytes, checksum: 7d62e511d073b5de4cf00c2a38d2db77 (MD5) Previous issue date: 2015-01-20 / Per year, more than R$ 15 billion reais are spent with the statutory sickness benefits issued by the Brazilian National Insurance Institute (Instituto Nacional do Seguro Social, INSS) and the costs related with the whole process. In addition, around 7 million medical examinations are held by the INSS medical examiners in order to grant the benefit, from which 2 million are denied by them. The main objective of this work is to assess the whole process of issuing statutory sickness benefits held by the INSS with a Game Theory approach. Analyzing the game structure of the process and the interactions of both, claimants and examiners, with the INSS and the unwanted incentives generated by the current structure. The claimant has an incentive for requiring the benefit even though he does not fit all the requirements for the benefit to be granted. As a result, the number of exams rise, lowering their quality and eventually making the INSS to issue unnecessary benefits. The examiner faces a high complex task without necessary time to perform it with all the caution required. Besides, once it is mandatory to inform the exam result immediately to the claimant, the examiner may have an incentive for conceiving the benefit even when the claimant does not fit all the requirements needed, given that the time provided to the examiner to analyze the case is too short to take a full evaluation.. Once made the parallel with the Game Theory and the Common Pool Resources (CPR) issue, it is possible to research the literature about mitigating this kind of problems. It is also interesting to perform a research on the Market Design literature. Both have showed positive results in mitigating similar issues and may have successful results with the sickness benefit process. / Por ano são gastos mais de R$ 15 bilhões de reais entre os benefícios de auxílio-saúde emitidos pelo INSS e os custos para viabilizar o processo. São realizadas, em torno de 7 milhões de pericias, das quais mais de 2 milhões tem resultado contrário por parte do médico perito. O objetivo deste trabalho é realizar uma leitura do processo de concessão de benefícios de auxílio-saúde pelo INSS sob a ótica da Teoria dos Jogos, com a análise da estrutura das interações entre segurado e perito com o INSS e os incentivos indesejados resultantes desta estrutura. Sendo que o segurado é incentivado a buscar o benefício mesmo sem ter, de fato, a necessidade. Resultando num aumento na quantidade de perícias realizadas por ano, diminuindo sua qualidade e eventualmente concedendo benefícios desnecessários. O perito, por sua vez, se defronta com uma atividade de alta complexidade e não dispõe do tempo necessário para uma análise cautelosa. Além disso, tem o incentivo a, em momentos de incerteza, conceder o benefício mesmo que o segurado não se enquadre corretamente nos requisitos necessários. Isto pode ocorrer, dentre outros fatores, devido ao tempo disponibilizado ao perito para analisar o caso com a atenção necessária não ser suficiente. Uma vez traçado o paralelo com a Teoria dos Jogos e os problemas de Common Pool Resources (CPR), é feita uma pesquisa nessa literatura em busca de maneiras de mitigar problemas similares ao pesquisado. Este paralelo também traz a possibilidade de pesquisar a literatura de Market Design acerca do redesenho da estrutura de mercados, com intuito de corrigir e desenvolver estes mercados. Estudos recentes apresentaram resultados positivos, sendo indicado, portanto, para trabalhos futuros, a implementação desta metodologia para o processo de concessão de benefícios de auxílio-saúde.

The societal problem regarding the housing shortage has made the housing market inaccessible. With the reduced number of rental apartments and longer housing queues, people face more challenges finding a suitable home. Swapping intermediaries have emerged over the years to facilitate the search process to swap apartments. However, tenants are still struggling to find apartments to swap with. Limited research has been conducted about tenants' experiences and perspectives regarding the swapping process. Through an exploratory approach, this study examines what problems tenants encounter during the swapping process. The research findings indicate several opportunity areas for improving and streamlining the swapping process. The made recommendations were regarding the search process, listing information, and apartment viewings. Further, to create an efficient market, the platform needs to consider thickness, overcome congestion, and make participation safe and simple. / Det samhälleliga problemet gällande bostadsbristen har medfört en oåtkomlig bostadsmarknad. Med minskade antalet hyresrätter samt längre bostadsköer står människor inför större utmaningar att hitta ett passande boende. För att underlätta bytesprocessen av hyresrätter har antalet bytesplattformar ökat under åren. Dock kämpar fortfarande många hyresgäster med att hitta en lägenhet att byta med. Begränsat antal studier har genomförts på hyresgäster gällande deras upplevelser samt perspektiv på själva bytesprocessen. Genom användande av en undersökande metod, undersökte denna studie vilka problem hyresgästerna stöter på under bytesprocessen av hyresrätter. Forskningsresultatet indikerade att flera möjligheter finns för att förbättra och effektivisera bytesprocessen. De rekommendationer som gjordes inkluderade sökprocessen, annonssidan, samt lägenhetsvisningar. Vidare, för att skapa en effektiv bytesmarknad, måste plattformen beakta tjocklek, övervinna trängsel, samt göra användandet säkert och enkelt.

[pt] O desenho atual de mercado do seguro obrigatório de veículos no Brasil tem apresentado questionamentos em relação ao seu modelo, destacando ineficiência na transferência de recursos dos proprietários de veículos para as vítimas de acidentes de trânsito e ausência de incentivo à eficiência na gestão dos recursos. Este é um mecanismo de alta complexidade, com natureza híbrida (parcela destinada a políticas públicas e parcela de natureza indenizatória) cujo desenho é um desafio constante ao regulador brasileiro. Com o objetivo de mitigar os problemas apresentados, fornecemos uma opção ao modelo atual em que o governo define diretamente a seguradora responsável e o valor de prêmio cobrado. Este estudo propõe-se um novo desenho de mercado, com a utilização de leilões em um processo mais transparente e eficiente para alocação e descoberta de preço para o Seguro DPVAT. Em um leilão reverso multiunidade de preço uniforme, as seguradoras ofertam quantidades e valor de prêmio por categoria de veículo e Unidade da Federação. Os resultados indicam que a estrutura da indústria de seguros e as decisões do governo possuem papel fundamental no desempenho do mercado. / [en] The current market design of mandatory vehicle insurance in Brazil has raised questions regarding its model highlighting inefficiency in the transfer of resources from vehicle owners to victims of traffic accidents and lack of incentive for efficiency in resource management. This is a highly complex mechanism with a hybrid nature (public policies and private insurance) whose design is a constant challenge for the Brazilian regulator. Looking to mitigate some of the problems, we provide an option to the current model in which the government directly defines the insurance company and the premium. This study proposes a new market design, using auctions for a more transparent and efficient process for allocation and price discovery for DPVAT Insurance. In a uniform reverse multi-unit auction, insurers bid quantities and premium by vehicle category and State. The results indicate that structure of the insurance industry and government decisions play a key role in market performance.

Blockchain-based peer-to-peer (P2P) electricity markets received considerable attention in the past years, leading to a rich variety of proposed market designs. Yet, little comparability and consensus exists on optimal market design, also due to a lack of common evaluation and benchmarking infrastructure. This article describes LabChain, an interactive prototype as research infrastructure for conducting experiments in (simulated) P2P electricity markets involving real human actors. The software stack comprises: (i) an (open) data layer for experiment configuration, (ii) a blockchain layer to reliably document bids and transactions, (iii) an experiment coordination layer and (iv) a user interface layer for participant interactions. As evaluation environment for human interactions within a laboratory setting, researchers can investigate patterns based on energy system and market setup and can compare and evaluate designs under real human behavior allowing alignment of intentions and outcomes. This contributes to the evaluation and benchmarking infrastructure discourse.

Most modern electricity markets do not guarantee that generation is reliable and sufficient to provide all consumer’s electricity needs at all times. This is due to design-flaws and regulatory intervention. During the coming decades, increased electricity demand and decarbonization trends will affect the electricity market greatly. As the share of wind and solar power increases in the generation mix, the inertia in the power system is expected to decrease. This can potentially increase the systems exposure to blackout risk. Therefore, it is important to ensure that electricity is traded in a way that ensures enough supply even during scarcity events. The study aims to compare six different capacity market designs that are widely discussed in the scientific literature. Furthermore, this study uses MATLAB to simulate how the utility for the strategic reserve in Sweden has changed over the past few years. The study finds no ideal capacity market design but concludes that different solutions come with their own advantages and trade-offs. The simulation results show that the utility of the strategic reserve in Sweden has increased during the last few years. Additionally, the simulation results suggest that demand for the strategic result varies on a daily time frame. / De flesta moderna elmarknader kan inte garantera pålitlig och tillräcklig produktion för att tillgodose konsumenters elbehov under alla tillfällen. Detta har att göra med brister i designen av elnätet och regleringar. Under de kommande decennierna kommer trender inom avkarbonisering att ha stor inverkan på elmarknaden. Med en ökande andel vind och solkraft som kraftproduktionsslag förväntas trögheten i kraftsystemet att minska. Detta kan potentiellt höja systemets utsatthet för strömavbrott. Därför är det viktigt att el handlas på ett sätt som försäkrar tillräcklig elförsörjning även under fall då produktionen är begränsad. Med målet att jämföra sex olika designer av kapacitetsmarknader som är etablerade i tidigare forskningsstudier. Vidare använder denna studie MATLAB för att simulera hur behovet av effektreserven i Sverige har ändrats under de senaste åren. Studien finner ingen ideal design för en kapacitetsmarknad, men fastställer att olika lösningar har sina egna fördelar och avvägningar. Studien finner vidare att behovet av effektreserven har ökat under de senaste åren. Dessutom indikerar simuleringsresultaten att behovet av effektreserven varierar med elbehovet under dag. / Kandidatexjobb i elektroteknik 2022, KTH, Stockholm

Dominant market theories analyze markets as ahistorical entities without the need for professional groups that manage crucial functions within them. This thesis, in contrast, approaches markets as historical systems that develop over time and that can be constituted in many different ways because of different historical trajectories. Different professional groups managing market routines, further, are seen as a crucial part of markets. Two concepts are introduced: “market architecture”, the specific way a market is constituted at a given time; and “market technocrats”, the seemingly disinterested third party functionaries that manage routines in markets and advocate changes in market architecture. The thesis argues that market technocrats exist because of uncertainty and lack of trust between market actors, and that they are an important part of how market architectures develop over time. It presents an analytical framework for understanding market technocrats and how they interact with and develop markets. Four different aspects of market technocrats are explored: the process of establishing market technocrats in market routines; the capture of the authority of market technocrats by other market actors; the expansionistic behavior of market technocrats; and the way changes in economic theory, as an important part of how economists with technocratic authority advocate market change, can help to explain changes in markets. These aspects are explored through four empirical papers: The Market Technocracy of Import Substitution: The Role of Asymmetric Information and The Swedish Seed Association 1880–1935; Limits of Market Technocracy: Swedish Fertilizer Research and the Crisis of Objectivity 1945–1960; Central Banks, and the Pursuit of Influence, Prestige, and Legitimacy: The Creation of the Nobel Memorial Prize; and From Market Engineering to Institutional Engineering: Reform Economics in Sweden 1950–2000. The results of the papers form the basis of a hypothetical narrative of how the role of market technocrats has changed during the 20th century. This provides a roadmap for further research in the development of markets and the role of market technocrats.

O atual desenho de mercado do Setor Elétrico Brasileiro (SEB) está apresentando uma série de problemas em seu funcionamento, destacando: (i) sustentabilidade econômica e financeira; (ii) sinal de preços; e (iii) complexidade técnica e regulatória. Esta combinação de problemas diminui a eficiência econômica e resulta em um ambiente de negócios inadequado e que não permite a correta alocação de custos e riscos. Todavia, apesar dos problemas apontados destaca-se que entre as ferramentas do SEB estão os Leilões de Energia, os quais são internacionalmente reconhecidos como eficazes na atração de investimentos e na segurança do suprimento. Assim, visando solucionar os problemas identificados no SEB, este estudo tem como objetivo propor um novo desenho de mercado de energia elétrica no Brasil com a utilização de leilões como principal elemento alocativo, introduzindo elementos que aprimorem a contratação de energia elétrica e a operação do SIN. Como um segundo objetivo, apresenta-se os fundamentos teóricos de leilões e de desenho de mercados de energia elétrica, visando uma base sólida e consistente nas proposições, a qual faça sentido para aqueles que desejam analisar e avançar sobre o tema. O novo desenho de mercado proposto considera a criação de um Mercado de Capacidade segregado do Mercado de Energia e a separação da parcela fio e comercialização da Distribuidora, sendo que a comercialização seria caracterizada como uma Loading Service Entity (LSE). A criação do Mercado de Capacidade manteria a liberdade da política energética e resolveria a questão da segurança do suprimento do SIN, sendo que isto combinado com a criação das LSEs permitiria a liberalização de 100% dos consumidores no Mercado de Energia. A operação do SIN também sofreria alteração, migrando do atual modelo de tight pool para um modelo de loose pool, no qual se estabelecem leilões competitivos para a operação do SIN. Um ponto crítico para o sucesso do novo desenho de mercado é o período de transição, e considerando a complexidade do SEB recomenda-se que este processo seja organizado e com previsibilidade de ações, para qual estima-se um período de 72 meses. Ao final, o novo desenho de mercado do SEB busca a eficiência econômica e a correta alocação de riscos, com um ambiente de negócios mais organizado e que esteja em condições de igualdade com os mercados de energia elétrica mais desenvolvidos. / The current Brazilian market design of electricity sector (SEB) is showing many problems, and I point out three severe ones: (i) Economic and financial sustainability; (ii) Poor price signal; (iii) Technical and regulatory complexity. These three problems combined diminish the allocative efficiency and create an unfriendly business environment, which distorts the cost and risk allocation. Brazil has a strong tradition in electricity auctions, highlighting those auctions are internationally recognized as an effective tool in attracting new investments and assuring supply adequacy. Therefore, the primary goal of this study is to present a new Brazilian electricity market design that uses auctions as the main allocative mechanism, including the introduction of features that improve the efficiency of the system and grid operations, as well. The second goal is to organize and present the auction and market design theory in Portuguese, providing a reference to others that want to research and study the theme. The proposal of a new market design splits the Capacity from Energy, and Grid Services from Commercialization in Distributors\' market, observing that the Distributors Commercialization part would be allocated in a Loading Service Entity (LSE). The creation of a Capacity Market would keep the energy policy room and address the supply adequacy concern, and this market combined with LSEs would allow the liberalization of all consumers to choose their suppliers. The Grid Operation also would be modified from a tight pool model to a loose pool model, and the new model would include auctions as the main allocation mechanism. One critical point to the success of a new Brazilian market design is the transition process; especially due to the complexity of SEB this study proposes a 72-month transition process. In the end, the new Brazilian market design will seek for more economic efficiency and a correct risk allocation, creating a better-organized business environment on par with conditions in more advanced electricity markets.

O atual desenho de mercado do Setor Elétrico Brasileiro (SEB) está apresentando uma série de problemas em seu funcionamento, destacando: (i) sustentabilidade econômica e financeira; (ii) sinal de preços; e (iii) complexidade técnica e regulatória. Esta combinação de problemas diminui a eficiência econômica e resulta em um ambiente de negócios inadequado e que não permite a correta alocação de custos e riscos. Todavia, apesar dos problemas apontados destaca-se que entre as ferramentas do SEB estão os Leilões de Energia, os quais são internacionalmente reconhecidos como eficazes na atração de investimentos e na segurança do suprimento. Assim, visando solucionar os problemas identificados no SEB, este estudo tem como objetivo propor um novo desenho de mercado de energia elétrica no Brasil com a utilização de leilões como principal elemento alocativo, introduzindo elementos que aprimorem a contratação de energia elétrica e a operação do SIN. Como um segundo objetivo, apresenta-se os fundamentos teóricos de leilões e de desenho de mercados de energia elétrica, visando uma base sólida e consistente nas proposições, a qual faça sentido para aqueles que desejam analisar e avançar sobre o tema. O novo desenho de mercado proposto considera a criação de um Mercado de Capacidade segregado do Mercado de Energia e a separação da parcela fio e comercialização da Distribuidora, sendo que a comercialização seria caracterizada como uma Loading Service Entity (LSE). A criação do Mercado de Capacidade manteria a liberdade da política energética e resolveria a questão da segurança do suprimento do SIN, sendo que isto combinado com a criação das LSEs permitiria a liberalização de 100% dos consumidores no Mercado de Energia. A operação do SIN também sofreria alteração, migrando do atual modelo de tight pool para um modelo de loose pool, no qual se estabelecem leilões competitivos para a operação do SIN. Um ponto crítico para o sucesso do novo desenho de mercado é o período de transição, e considerando a complexidade do SEB recomenda-se que este processo seja organizado e com previsibilidade de ações, para qual estima-se um período de 72 meses. Ao final, o novo desenho de mercado do SEB busca a eficiência econômica e a correta alocação de riscos, com um ambiente de negócios mais organizado e que esteja em condições de igualdade com os mercados de energia elétrica mais desenvolvidos. / The current Brazilian market design of electricity sector (SEB) is showing many problems, and I point out three severe ones: (i) Economic and financial sustainability; (ii) Poor price signal; (iii) Technical and regulatory complexity. These three problems combined diminish the allocative efficiency and create an unfriendly business environment, which distorts the cost and risk allocation. Brazil has a strong tradition in electricity auctions, highlighting those auctions are internationally recognized as an effective tool in attracting new investments and assuring supply adequacy. Therefore, the primary goal of this study is to present a new Brazilian electricity market design that uses auctions as the main allocative mechanism, including the introduction of features that improve the efficiency of the system and grid operations, as well. The second goal is to organize and present the auction and market design theory in Portuguese, providing a reference to others that want to research and study the theme. The proposal of a new market design splits the Capacity from Energy, and Grid Services from Commercialization in Distributors\' market, observing that the Distributors Commercialization part would be allocated in a Loading Service Entity (LSE). The creation of a Capacity Market would keep the energy policy room and address the supply adequacy concern, and this market combined with LSEs would allow the liberalization of all consumers to choose their suppliers. The Grid Operation also would be modified from a tight pool model to a loose pool model, and the new model would include auctions as the main allocation mechanism. One critical point to the success of a new Brazilian market design is the transition process; especially due to the complexity of SEB this study proposes a 72-month transition process. In the end, the new Brazilian market design will seek for more economic efficiency and a correct risk allocation, creating a better-organized business environment on par with conditions in more advanced electricity markets.