Influence of climatic variability on the electricity generation potential by renewable sources in the Brazilian semi-arid region

Medeiros, Susane Eterna Leite; Nilo, Priscila Farias; Silva, Louise Pereira; Santos, Carlos Antônio Costa dos; Carvalho, Mónica; Abrahão, Raphael

doi:10.1016/j.jaridenv.2020.104331

Cited by 22 publications

(15 citation statements)

References 32 publications

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“…Seguindo a mesma abordagem de Abrahão et al (2017), os autores Medeiros et al (2021) constataram que houve um aumento de 0,010 ºC/ano na temperatura média do ar em todos os locais estudados no estado da Paraíba (Água Branca, Aguiar, Coremas, Princesa Isabel, Teixeira, São Gonçalo e Patos). Além disso, os autores também apresentaram que a produção de eletricidade fotovoltaica anual verificada nos dez primeiros anos da série (de 1950 a 2016) foi maior se comparada ao restante do período e explicam que isso era esperado, uma vez que com o aumento anual da temperatura do ar tem influência direta na eficiência dos painéis fotovoltaicos (Schaeffer et al, 2012).…”

Section: Resultsunclassified

Vulnerabilidade das regiões semiáridas às mudanças climáticas: impactos na produção de energia fotovoltaica

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Neto

et al. 2021

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Já está demonstrado que as mudanças climáticas alteram a capacidade de produção das energias renováveis, assim passando a ser uma avaliação necessária no que tange a instalação de novas usinas de energia desse tipo de fonte. A alteração de parâmetro climáticos como temperatura máxima, temperatura mínima, temperatura média e nebulosidade tendem a prejudicar a região semiárida social e economicamente. Haja vista esse cenário, lança-se mão de projeções de parâmetros climáticos, produzindo aproximações da evolução de seus comportamentos, possibilitando prognósticos sobre o desempenho da produção de energias renováveis. Fazendo uma revisão bibliográfica, o presente trabalho se dedica a verificar como as tendências climáticas impactam na produção de energia fotovoltaica em regiões semiáridas. Conclui-se que, apesar da escassez de trabalhos sobre o tema, os resultados de pesquisas científicas e tecnológicas pode contribuir para minimizar a difícil situação das populações que vivem nessas regiões, proporcionando melhoria na qualidade de vida mesmo em situações climáticas adversas. Sendo assim, fica clara a necessidade da consideração de tendências climáticas na implementação e otimização de futuras instalações de energias renováveis no semiárido.

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Section: Resultsunclassified

Vulnerabilidade das regiões semiáridas às mudanças climáticas: impactos na produção de energia fotovoltaica

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Júnior

Neto

et al. 2021

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Section: A Global Survey Of the Impact Of Climate Change On The Hydro...mentioning

confidence: 99%

“…Some studies have attributed the drought to an intensified El Niño phase of ENSO (Sun et al, 2016), while some have attributed it to increased agricultural and livestock activities (dos Santos et al, 2020). Small hydropower projects in semi-arid regions of Brazil have experienced a reduction in electricity generation (approximately 3.2 MWh/year) despite an increase in precipitation, as scarce water resources have been prioritized for irrigation and water supply purposes (Medeiros et al, 2021). At a regional scale, an increase in the precipitation in the northern Amazon and the southern la Plata basin is projected with increased wind and moisture flux, and a decrease in the precipitation in the northern la Plata basin is projected with decreased rain in the South American Monsoon System by the end of the century (Gomes et al, 2021).…”

Section: Eastern South Americamentioning

confidence: 99%

Climate change and the hydropower sector: A global review

Wasti

Ray

et al. 2022

WIREs Climate Change

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Renewable sources of electricity, such as solar and wind, need to be paired with sources of reliable baseload. Hydropower is a renewable, low‐emission source of electricity baseload available throughout much of the world as an alternative to electricity conventionally provided by thermal combustion of fossil fuels; however, the global hydropower sector as it stands relies upon surface water flows of substantial and predictable volume. This makes it vulnerable to climate change. The impact of climate change on the hydropower sector is difficult to predict, and not globally uniform. It might be positive, negative, or inconsequential depending upon the local timing and magnitude of changes, reservoir size, allocation priority, and the energy market. The secondary effects of climate change on glacier lake outbursts floods, landslides, and sediment load are poorly understood. In addition, when planning hydropower projects for the future, attention must be given to the greenhouse gas contribution of the impounded waters behind storage dams, and the impact of dams on water temperature. In the past decade, sovereign nations and international development agencies worldwide have evaluated the potential of hydropower as a cost‐effective, clean, sustainable option for baseload electricity supply. There is therefore a crucial need to assess the opportunities and risks hydropower poses across a wide range of potential future climate conditions. This review paper conducts a global survey of the literature on the effect of climate change on hydropower and identifies room for improvement in current approaches to evaluation of the net benefits of hydropower projects under climate change. This article is categorized under: Vulnerability and Adaptation to Climate Change > Learning from Cases and Analogies Assessing Impacts of Climate Change > Evaluating Future Impacts of Climate Change

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“…In that regard, investing in only one or a couple of sources might not be enough or even wise both for the environment and for the economy. Diversifying the renewable sources for generating electricity is an adaptation mechanism driven by climate change conditions, and it can help minimize fluctuations in energy supply [31]. Nevertheless, the volume of energy to be produced in a given area depends on (and is limited to) the capacity of the transmission network of that respective area [32], and therefore adequate transmission/distribution networks also need to be accounted for.…”

Section: Literature Reviewmentioning

confidence: 99%

Trends in Renewable Electricity Generation in the G20 Countries: An Analysis of the 1990–2020 Period

et al. 2022

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The use of electricity from non-renewable sources increases environmental impacts. Therefore, several countries have committed to increase the use of renewable sources. Considering the importance of the Group of Twenty (G20), this article aims to identify trends in renewable electricity supply in these countries. The data collected are from the International Energy Agency (IEA) between 1990 and 2020. The methods measured the production of each type of electricity in the G20 matrices and identified the influence of the population, Gross Domestic Product (GDP), and CO2 emissions in renewable electricity production using multiple linear regression. In terms of results, Brazil and Canada have the most renewable electricity matrices and higher per capita renewable production than non-renewable. Saudi Arabia presented the smallest renewable matrix throughout the analyzed period. All 20 countries have varied electrical production, with different amounts of solar, wind, hydro, biomass, geothermal, and tidal energy. Countries with the highest GDP are not necessarily the largest producers of renewable electricity. Hydroelectric energy, the biggest highlight in renewable production, is making room for other sources such as wind and solar, which grew the most in terms of participation in the electrical matrices. The waste, geothermal, and tidal energy participation have shown a timid but constant growth.

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Influence of climatic variability on the electricity generation potential by renewable sources in the Brazilian semi-arid region

Cited by 22 publications

References 32 publications

Vulnerabilidade das regiões semiáridas às mudanças climáticas: impactos na produção de energia fotovoltaica

Vulnerabilidade das regiões semiáridas às mudanças climáticas: impactos na produção de energia fotovoltaica

Climate change and the hydropower sector: A global review

Trends in Renewable Electricity Generation in the G20 Countries: An Analysis of the 1990–2020 Period

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