Economic Effects of Micro- and Mini-Distributed Photovoltaic Generation for the Brazilian Distribution System

The micro- and mini-distributed generation (MMDG) has significantly increased after the normative resolution No. 482/2012 in Brazil; the installed capacity surpassed 7 GW in 2021. In the international context, a similar event was observed, whose process generated a cross-subsidy for other consumers,...

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Bibliographic Details
Published inEnergies (Basel) Vol. 15; no. 3; p. 737
Main Authors Martins, Vanderlei Affonso, Branco, David Alves Castelo, Hallack, Michelle Carvalho Metanias
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.02.2022
Subjects
Condominiums
Consumers
Consumption
COVID-19
Distributed generation
economic effects
Economic impact
Economics
Electric power
Electric power distribution
Electricity
Electricity distribution
Electricity pricing
Energy
Expansion
grid connection
Impact analysis
incentive regulation
Incentives
Low income groups
Photovoltaics
Regulation
renewable energy
solar energy
Time series
Brazil
Rio de Janeiro Brazil
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Summary:The micro- and mini-distributed generation (MMDG) has significantly increased after the normative resolution No. 482/2012 in Brazil; the installed capacity surpassed 7 GW in 2021. In the international context, a similar event was observed, whose process generated a cross-subsidy for other consumers, in addition to other problems that affect the economic balance of concessionaires. To mitigate this issue, the National Electric Energy Agency (ANEEL) is in the process of revising current rules. Thus, this study estimates the weight of this decision, through a methodology adapted from international assessment models, based on information from the Brazilian regulatory system. In order to achieve it, this paper presents metrics to define the potential market MMDG, based on the consumption patterns of consumers. Then, through time series analysis, the MMDG demand curve is estimated under two scenarios up to 2030. Finally, the economic impact on tariff adjustments and revisions, and their effect on the electric power concessionaires are evaluated. In the distribution companies of the Enel Group alone, economic losses are estimated at USD 1.2 billion by 2030; 53% of this will be passed on to consumers’ tariffs. Thus, based on international experiences, it can be concluded that the best model is the adequate grid remuneration.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15030737