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DOI	10.1016/j.enpol.2020.111247
	Systemic value of electricity sources – What we can learn from the Brazilian experience?
	Romeiro D.L.; Almeida E.L.F.D.; Losekann L.
发表日期	2020
ISSN	0301-4215
卷号	138
英文摘要	The competitiveness of electricity sources is traditionally estimated by levelized cost of electricity (LCOE) compared to the average electricity price. However, the introduction of variable renewable energy sources (VREs) in power systems has evidenced that time, location and availability, are essential to set the marginal value of electricity sources. Overcoming the narrow view of costs for a broad value approach, the literature recognizes that the source comparison must consider the expected marginal value of each alternative, which evolves over time due to sources penetration and system development, changing static and dynamic integration costs. The paper presents the Brazilian experience as forerunner case study for the literature on systemic value, as the country has established a pioneering benefit-cost index (BCI) to compare different sources in centralized expansion auctions, which contracted 100 GW of installed capacity. The BCI analysis is based on hydro predominance, recognizing only static integration costs (backward-looking approach). Nevertheless, the Brazilian system is evolving towards higher short-term variability due to the loss of regularization of hydro reservoirs, limitations to hydropower expansion and VREs penetration. The expansion and operation of the power system are not sensitive to ongoing changes, neglecting dynamic integration costs, which must be incorporated in a forward-looking perspective. © 2020 Elsevier Ltd
英文关键词	Hydropower; Marginal value; System integration costs; Variable renewable energy
学科领域	Expansion; Hydroelectric power; Electricity prices; Electricity source; Hydropower; Installed capacity; Levelized cost of electricities; Marginal values; System integration; Variable renewable energies; Cost benefit analysis; alternative energy; auction; competitiveness; cost-benefit analysis; electricity supply; hydroelectric power; Brazil
语种	英语
scopus关键词	Expansion; Hydroelectric power; Electricity prices; Electricity source; Hydropower; Installed capacity; Levelized cost of electricities; Marginal values; System integration; Variable renewable energies; Cost benefit analysis; alternative energy; auction; competitiveness; cost-benefit analysis; electricity supply; hydroelectric power; Brazil
来源期刊	Energy Policy
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/118143
作者单位	Instituto de Economia - Universidade Federal do Rio de Janeiro (UFRJ), Brazil; Faculdade de Economia - Universidade Federal Fluminense (UFF), Brazil
推荐引用方式 GB/T 7714	Romeiro D.L.,Almeida E.L.F.D.,Losekann L.. Systemic value of electricity sources – What we can learn from the Brazilian experience?[J],2020,138.
APA	Romeiro D.L.,Almeida E.L.F.D.,&Losekann L..(2020).Systemic value of electricity sources – What we can learn from the Brazilian experience?.Energy Policy,138.
MLA	Romeiro D.L.,et al."Systemic value of electricity sources – What we can learn from the Brazilian experience?".Energy Policy 138(2020).