Electricity supply security and the future role of renewable energy sources in Brazil

Silva, Rodrigo Corrêa da; Neto, Ismael de Marchi; Seifert, Stephan Silva

doi:10.1016/j.rser.2016.01.001

Cited by 173 publications

(63 citation statements)

References 19 publications

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“…Biomass is another main pillar, covering a broad range from traditional biomass use in the residential sector to modern biofuel applications for power generation and transport fuels. However, the future increase in energy demand is expected to be covered also by an expansion of fossil fuel installations and the dependency on hydropower leads to a high vulnerability with regard to droughts [3,4], which have recently heavily disturbed the Brazilian power supply [5]. Nevertheless, the abundance of RE potentials, not only for hydropower and energy production from biomass, but also for wind and solar energy provides good prospects for a completely renewable supply of power, heat, and transport fuels.…”

Section: Introductionmentioning

confidence: 99%

“…Resource assessments in high spatial resolution have been provided for solar global horizontal irradiation [14,15], direct normal irradiation [16] and wind speed [17], revealing that particularly good potentials are located in the western and northwestern part of the country. With reservoir hydro stations as a source of flexibility, the power system is expected to easily balance substantial shares of VRE generation without increasing demand for fossil backup power plants [5,[18][19][20]. Nevertheless, Saporta [21] mentioned that the flexibility provided by hydropower plants with reservoirs in Brazil can be constrained by the multiple uses of water for environmental, social and economic purposes.…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, Saporta [21] mentioned that the flexibility provided by hydropower plants with reservoirs in Brazil can be constrained by the multiple uses of water for environmental, social and economic purposes. Additional benefits are expected for the stability of the power system through a diversification with wind and solar [5,15,20]. Several studies have investigated the future role of RE across the whole energy system and identified considerable potential for their implementation [22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

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100% Renewable Energy Supply for Brazil—The Role of Sector Coupling and Regional Development

2017

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Abstract:With its abundance of renewable energy potentials, not only for hydropower and bioenergy, but also for wind and solar, Brazil provides good prospects for a carbon neutral energy system. The role of an enhanced coupling of the power, heat and transport sectors in such systems is not yet fully understood. This paper analyses the least-cost composition and operation of a fully renewable power supply system as part of a carbon neutral energy supply in Brazil. It relies on the application of the high-resolution energy system model REMix. Our analysis reveals that the expansion of wind and solar power is more cost-efficient than the construction of additional hydroelectric plants. This is favoured because the existing hydroelectric plants offer large capacity of dispatchable power to compensate for fluctuations, and thus no additional storage is necessary. Furthermore, the REMix analysis indicates that varying shares of solar and wind power technologies as well as the spatial distribution of power generation have only a small influence on supply costs. This implies that the transformation strategy in Brazil can be primarily based on other criteria such as regional development, public acceptance, environmental impact or industrial policy without major impacts on system costs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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100% Renewable Energy Supply for Brazil—The Role of Sector Coupling and Regional Development

2017

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“…The costs of electricity generation for different sources in Brazil were summarized by [19], based on 2005-2015 average fixed costs and on variable costs from March 2015. According to them, hydro generation had the lowest costs, followed by wind, small hydro, nuclear, solar, and thermal (coal, sugarcane refuse, wood residues, other biomass sources, natural gas, fuel oil and diesel) energy [19].…”

Section: Rio De Janeiro's Contextmentioning

confidence: 99%

Complementarity of Hydro, Photovoltaic, and Wind Power in Rio de Janeiro State

et al. 2017

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Abstract:Integrating renewable and intermittent energy sources into the electricity sector challenges traditional energy systems based on predictability and constant supply. Studies oncomplementarity between climate-related resources from different regions and countries are proving to be an efficient means to overcome the variability of single-source use. Although Rio de Janeiro State (Brazil) has set goals of increasing its use of clean and low carbon energy, there is no study to support the expansion process. Given that, this work aims to assess the complementarity potential of small hydropower plants, wind farms, and photovoltaic panels in the state. Power output estimates have been based on wind speeds, solar radiation and river flow data and without generation technologies assumptions. The Pearson correlation coefficient and linear programming have been used to comprehend and optimize the renewable mix. Daily complementarity has been observed among the energy sources considered, especially between hydro and solar resources. The optimization process showed an improvement of 61% in the total power standard deviation, from the worst-100% hydro power-to the best case-62% of photovoltaic, 21% of wind, and 17% of hydro power. The results highlight the benefits of appropriately joining the three sources and suggest investing in photovoltaic generation.

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“…In recognition of the intensifying energy problem, the United Nations set universal access to modern energy by 2030 as one of the sustainable development goals (SDGs) [79]. Energy has therefore become a topical subject in recent discourse, appearing in the spotlight of both academic and nonacademic research, given the varied services provided through electricity [1,20,44,56,61,63].…”

Section: Introductionmentioning

confidence: 99%

Leapfrogging to Renewable Energy: The Opportunity for Unmet Electricity Markets

Batinge

Musango

Brent

2017

SAJIE

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Electricity plays a crucial role in the socio-economic development of any country. Developing countries, however, unlike their developed counterparts, do not have electricity markets that are fully satisfied, nor are they 'laden' with large-scale infrastructure that could create inertia about making the transition. The objective of this paper is to identify the potential trajectories for unmet electricity markets in sub-Saharan Africa to leapfrog to renewable energy as they strive to accelerate access to electricity. The following key drivers of renewable energy leapfrogging in unmet electricity markets were identified from the review: the need to achieve sustainability targets; the availability of renewable energy resources on a sufficient scale; growing investment in renewable energy; maturing niche renewable technologies; a weakening renewable energy cost hypothesis; and a growing population and increasing urbanisation. The paper further conceptualised three potential transition paradigms: revolutionary, scattered, and coned pathways. These paradigms were defined by the pace and magnitude of the transition that can be observed, and depend on the intensity of the identified drivers in a specific unmet electricity market. The paper argues that the largely unmet electricity market in sub-Saharan Africa provides an opportunity to leapfrog the fossilintensive energy regime to adopt a renewable energy regime. OPSOMMINGElektrisiteit speel 'n belangrike rol in die sosio-ekonomiese ontwikkeling van enige land. In teenstelling met hul ontwikkelde eweknieë, is ontwikkelende lande se elektrisiteitsmarkte nog nie versadig nie, en is hulle ook boonop nie opgesaal met grootskaalse infrastruktuur wat oorgang sou vertraag nie. Die doel van hierdie artikel is om die potensiële trajekte vir onontginde elektrisiteitsmarkte in sub-Sahara-Afrika te identifiseer om oor te skakel na hernubare energie in hul strewe daarna om toegang tot elektrisiteit te versnel. Die behoefte om volhoubaarheidsdoelwitte te bereik word ondersoek, asook die beskikbaarheid van hernubare energiebronne op voldoende skaal; toenemende belegging in hernubare energie; die ontwikkeling van nie-hernubare tegnologie; die hipotese rakende die verminderde koste verbonde aan hernubare energie-infrakstruktuur; en die bevolkingsaanwas en verstedeliking. Die artikel stel ook 3 omskakeling-paradigmas voor: revolusionêre, verspreide of gefokusde roetes. Dit was gedefinieer deur die tempo en omvang van die omskakeling waargeneem, en hang af van die intensiteit van die geïdentifiseerde drywers in die mark. Die argument word gemaak dat die onbevredigde elektrisiteitsmark in die sub-Sahara mark geleenthede bied om die fosielbrandstof-intensiewe energie-opwekking verby te steek en sodoende 'n hernubare energie regime in werking te stel.

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Electricity supply security and the future role of renewable energy sources in Brazil

Cited by 173 publications

References 19 publications

100% Renewable Energy Supply for Brazil—The Role of Sector Coupling and Regional Development

100% Renewable Energy Supply for Brazil—The Role of Sector Coupling and Regional Development

Complementarity of Hydro, Photovoltaic, and Wind Power in Rio de Janeiro State

Leapfrogging to Renewable Energy: The Opportunity for Unmet Electricity Markets

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