Economic Feasibility of Photovoltaic Micro-Installations Connected to the Brazilian Distribution Grid in Light of Proposed Changes to Regulations
| Autor: | Luiz Célio Souza Rocha, Paulo Rotella Junior, Rogério Santana Peruchi, Priscila França Gonzaga Carneiro, Karel Janda, Giancarlo Aquila, Gabriel Nasser Doyle de Doile |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Control and Optimization
micro-installations 020209 energy media_common.quotation_subject Energy Engineering and Power Technology 02 engineering and technology 010501 environmental sciences lcsh:Technology 01 natural sciences 0202 electrical engineering electronic engineering information engineering cross-subsidy Electrical and Electronic Engineering Engineering (miscellaneous) 0105 earth and related environmental sciences media_common distributed generation lcsh:T Renewable Energy Sustainability and the Environment business.industry Electric potential energy Photovoltaic system Economic feasibility regulation Environmental economics Solar energy economic viability solar PV energy Distributed generation Service (economics) Distribution grid Regulatory agency business Energy (miscellaneous) |
| Zdroj: | Energies; Volume 14; Issue 6; Pages: 1529 Energies, Vol 14, Iss 1529, p 1529 (2021) |
| ISSN: | 1996-1073 |
| DOI: | 10.3390/en14061529 |
| Popis: | Brazil is currently undergoing changes to regulations on distributed generation (DG), specifically for solar energy micro-generation. The changes proposed by the Brazilian Regulatory Agency suggest that only the cost of energy be compensated to investors. The service costs and other charges related to energy tariffs must be divided among consumers. Investors with existing installations and class entities have contested these proposals, calling them “sun-fees”. To date, no scientific papers have been published discussing these changes. The new regulations propose an end to cross subsidies, where all consumers (even those who do not have DG) pay for the transmission and distribution systems. This study compares the economic feasibility of micro-generation before and after implementing the new standards proposed by the regulatory agency. We used data on average electrical energy demand, energy price, and solar radiation in different regions. The national averages were used as a base comparison with other scenarios. The results show that projects are viable for all analyzed scenarios, however, after implementing the proposed changes, the discounted payback time is extended. This, however, does not make projects unfeasible. |
| Databáze: | OpenAIRE |
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