Electrical energy demand efficiency efforts in Brazil, past, lessons learned, present and future: A critical review

Zurn, H.H.; Tenfen, Daniel; Rolim, J.G.; Richter, André; Hauer, Ines

doi:10.1016/j.rser.2016.09.037

Cited by 26 publications

(15 citation statements)

References 12 publications

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“… It attempts to foster the potential of Demand Response (DR) by increasing the electricity tariff and also minimize the differences between costs and revenues of the utilities. [25,51,52,61,64,65,94]  TFS would promote a reduction of thermal dispatch, an increase in the overall storage level and the reduction of the overall operating system cost.…”

Section: Summary and Discussionmentioning

confidence: 99%

Towards a smart grid power system in Brazil: Challenges and opportunities

Dranka

Ferreira

2020

Energy Policy

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The prospects for a smart power system have been widely discussed in the global electricity sector. Decarbonization, Digitalization and Decentralization are considered the main key drivers for this power system transition and Brazil is no exception to this universal trend. A search of the literature revealed few studies which attempt to address the main challenges and opportunities towards a smart grid power system in Brazil. This paper provides an up-to-date assessment of the present and potential capabilities of existing and future technologies, regulations and policies and attempts to identify how these elements are interrelated. Our findings add to a growing body of evidence suggesting that policies for Distributed Generation (DG), Demand-Side Management (DSM) and new tariff schemes 2 are on a path of accelerated deployment in the country. The deployment of storage technologies, however, is at a slow pace of growth. We highlight the need to further develop new business models to address the various decentralized energy technologies and services that are emerging in the sector.The current net-metering system is considered a key issue to be addressed as this regulatory structure may shift the costs from DG to non-DG users. Geographic Information System (GIS) 2009 Power Line Communication (PLC) 2012 i. Small-scale Distributed Generation (RN nº 482) 2015 DG (RN nº 687) 2016 i. White Tariff (TOU)

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Section: Summary and Discussionmentioning

confidence: 99%

Towards a smart grid power system in Brazil: Challenges and opportunities

Dranka

Ferreira

2020

Energy Policy

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“…Compared with the maximum energy demand (≈85,000 GW) [120], it is 0.085 PW and 0.193% of the potentiality of solar cells energy; therefore, this result might be translated as 0.193% of the Brazilian territory could supply the energy demand. On the other hand, in 2015, the cost in Brazil for solar energy was studied, getting around 175 US$/MWh [10], but using the tendency from 2015 to 2019 it could be reduced from around 0.6 to 0.244 US$/Wp [8], the value being 40.67% compared with the value 4 years ago.…”

Section: The Brazilian Scenariomentioning

confidence: 97%

Photovoltaic Solar Energy: Is It Applicable in Brazil? – A Review Applied to Brazilian Case

Moreno

Duarte

Santos

et al. 2019

Materials and Geoenvironment

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The photovoltaic technologies have been developed year by year in different countries; however, there are some countries where this kind of energy is being born, such as the Brazilian case. In this paper, some important parameters are analysed and applied to different solar cell materials, identifying that if the fossil fuels were substituted by solar cells, it would reduce the CO2 emissions by 93.2%. In addition, it is shown that the efficiency of solar cells is not as farther as it could be thought from coal thermoelectrical plants in Brazil and the cost of energy using solar cells could be as good as these thermoelectrical plants. Finally, the potentiality of Brazilian territory to implant this technology is presented, identifying that with the use of 0.2% of the territory, the energy demand could be supplied.

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“…They operate to balance the lack of power supply during dry periods or high energy consumption. Despite recent investments in renewable energy sources, they play an important strategic role, as they represent only 2% of energy production 1,2 . In thermal units that use coal as a heat source, some mechanisms can lead to surface deterioration and other carbon steel components, reducing their lifespan.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Fly Ash and a Protective Coating for Brazilian Thermal Power Plant Boilers

et al. 2020

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Thermoelectric power plants that use mineral coal show high wear in heat exchanger due to the action of several damage mechanisms associated with the impact of hard particles from the residue of burnt coal, the ashes. The employment of coatings should be given into consideration particularly for critical components, which are subject to severe erosive conditions is one of the solutions. However, the choice of material will depend on several factors, including the properties of aggressive ashes. This paper aims to characterize ashes generated by a Brazilian coal-based power plant and a FeCrNbNi-based metallic coating obtained by the electric arc spraying process. No trace of sulfur content was found in fly ashes and it was defined that wear is mainly related to the impact and energy of hard particles are the leading causes of degradation in coal-fired boiler equipment. According to the assessment, applied coating showed (5 ± 2)% by volume of pores and cracks, with 1.6% of oxides after the spraying process and hardness 35% greater than ash particles. Preliminary results in field operation suggest that the material showed relatively low wear compared to the original substrate and showed great applicability in controlling material deterioration for this purpose.

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Electrical energy demand efficiency efforts in Brazil, past, lessons learned, present and future: A critical review

Cited by 26 publications

References 12 publications

Towards a smart grid power system in Brazil: Challenges and opportunities

Towards a smart grid power system in Brazil: Challenges and opportunities

Photovoltaic Solar Energy: Is It Applicable in Brazil? – A Review Applied to Brazilian Case

Characterization of Fly Ash and a Protective Coating for Brazilian Thermal Power Plant Boilers

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