Coal-fired electricity generation in Brazil under public regulation: security-of-supply assessment

IF 2.5 Q3 MANAGEMENT

International Journal of Energy Sector Management Pub Date : 2023-04-06 DOI:10.1108/ijesm-09-2022-0003

Marcelo Battesini, J. Koppe

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Abstract

Purpose This study aims to propose an approach to assess the security of supply (SS) in a coal-fired electricity generation supply chain subject to public price regulation in Brazil. This study characterizes the Brazilian scenario of coal-fired electricity generation, which represents less than 3.5% of the energy sources. Design/methodology/approach Data from six mining companies that supply a coal plant were analyzed in a case study. The risks were characterized and objectively estimated through a synthetic multidimensional index. Structural changes in the earnings before interest, taxes, depreciation, amortization and exploration indicator time series of coal companies (CC) were statistically detected. Findings Empirical evidence demonstrates that the supply chain has a low disruption risk (SS index equal to 0.74). However, when suppliers are individually analyzed, 48.64% of all coal shows moderated disruption risk, and 2.51% is under high risk. In addition, this study finds a drop in the financial results of CC related to public regulation of coal prices. This impacts the security of coal supply. Research limitations/implications This study discusses the influence of legal and regulatory policy risks in a coal power generation supply chain and the implications of the SS index as a management tool. Originality/value A novel SS index is presented and empirically operationalized, and its dimensions – environmental, occupational, operational, economic-financial and supply capacity – are analyzed.

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公共监管下的巴西燃煤发电：供应安全评估

目的本研究旨在提出一种评估巴西公共价格监管下燃煤发电供应链供应安全的方法。这项研究描述了巴西燃煤发电的情景，燃煤发电占能源的比例不到3.5%。设计/方法/方法在一个案例研究中分析了六家煤矿公司的数据。通过综合多层面指数对风险进行了表征和客观估计。对煤炭公司（CC）息税折旧摊销前利润和勘探指标时间序列的结构变化进行了统计检测。发现经验证据表明，供应链中断风险较低（SS指数等于0.74）。然而，当对供应商进行单独分析时，48.64%的煤炭显示出中等中断风险，2.51%的煤炭处于高风险之下。此外，本研究发现CC的财务业绩下降与煤炭价格的公共监管有关。这影响了煤炭供应的安全。研究局限性/含义本研究讨论了煤炭发电供应链中法律和监管政策风险的影响，以及SS指数作为管理工具的含义。独创性/价值提出了一个新的SS指数，并对其进行了实证操作，分析了其维度——环境、职业、运营、经济金融和供应能力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Energy Sector Management MANAGEMENT-

CiteScore

6.80

自引率

22.60%

发文量

期刊介绍： The International Journal of Energy Sector Management aims to facilitate dissemination of research on issues relating to supply management (covering the entire supply chain of resource finding, extraction, production, treatment, conversion, transportation, distribution and retail supply), demand and usage management, waste management, customer and other stakeholder management, and solutions thereto. The journal covers all forms of energy (non-renewable and renewable), forms of supply (centralised or decentralised), ownership patterns (public or private, cooperative, joint, or any other), market structures (formal, informal, integrated, disintegrated, national, international, local, etc.) and degress of commoditisation (e.g. internationally traded, regionally traded, non-traded, etc.). The journal aims to cover a wide range of subjects relevant to the management of the energy sector, including but not limited to: Management of scarce resources (economic, financial, human and natural), projects, activities and concerns (e.g. regulatory, social and environmental aspects), technologies and knowledge Business strategy, policy and planning as well as decision support systems for energy sector management Business organisation, structure and environment, and changes thereto Globalisation and multi-cultural management Management of innovation, change and transition.