Multi-area reliability assessment based on importance sampling, MCMC and stratification to incorporate variable renewable sources Electric Power Systems Research, 2021 This paper presents a new methodology for Monte Carlo-based multi-area reliability assessment based on optimal Importance Sampling (IS), Markov Chain Monte Carlo (MCMC) and optimal stratification. The proposed methodology allows the representation of relevant features…
Assessing the Cost of Network Simplifications in Long-Term Hydrothermal Dispatch Planning Models IEEE Transactions on Sustainable Energy, 2021 The sustainable utilization of hydro energy relies on accurate estimates of the opportunity cost of the water. This value is calculated through long-term hydrothermal dispatch problems (LTHDP), and the recent literature has raised awareness about the consequences…
Distribution Network Rate Making in Latin America IEEE Power and Energy Magazine, 2020 Following the trend observed in developed economies, various Latin American governments are committed to reducing greenhouse gas emissions, particularly in the power sector. In countries such as Chile, Peru, Colombia, Brazil, and Mexico, various regulatory policies have been issued to meet renewable-generation…
Electrical Expansion in South America IEEE Power and Energy Magazine, 2019 Questions on whether the power system of the future will be centralized or distributed occupy institutions and agents of the South American electricity industry as well as their peers in other regions of the world. A fundamental discussion concerns whether generation expansion will be…
The future power system IEEE Power and Energy Magazine, 2019 Distributed energy resources (DERs), including distributed renewable generation, have changed the operational, commercial, and regulatory dynamics of power systems. The growth of DERs has challenged the classic organization of power systems, which was generally based on centralized supply from larger plants, and there has been…
Reliability-Constrained Power System Expansion Planning: A Stochastic Risk-Averse Optimization Approach IEEE Transactions on Power Systems, 2019 This work presents a methodology to incorporate reliability constraints in the optimal power systems expansion planning problem. Besides Loss Of Load Probability (LOLP) and Expected Power Not Supplied (EPNS), traditionally used in power systems, this work proposes the use…
A risk-constrained Energy Reallocation Mechanism for renewable sources with a Marginal Benefit approach Electric Power Systems Research, 2018 Because electricity generation from renewable energy is seasonal and intermittent, the risk associated with its cash flow volatility may discourage investments in this area. In this paper, a method called Energy Reallocation Mechanism is proposed to mitigate…
Reliability mechanism design: An economic approach to enhance adequate remuneration and enable efficient expansion Energy, 2018 In the sectoral reform processes that several countries underwent in the 1990s and 2000s, it was common to introduce a capacity mechanism to ensure adequacy in the systems’ expansion. The definition of a “reliability product” that is separate from…
A comprehensive analysis of the Demand Response Program proposed in Brazil based on the Tariff Flags mechanism Electric Power Systems Research, 2017 The Brazilian Electricity Regulatory Agency (ANEEL) presented a proposal to revise the tariff structure of distribution companies in Brazil. One of the main approved suggestions was to establish a mechanism called Tariff Flags,…
Facilitating the Integration of Renewables in Latin America IEEE Power and Energy Magazine, 2017 It is well known that storage facilities can provide value to various electricity sectors through several services, which we group into five main classes. Link
