DOI: 10.1016/j.enpol.2020.111247
论文题名: Systemic value of electricity sources – What we can learn from the Brazilian experience?
作者: Romeiro D.L. ; Almeida E.L.F.D. ; Losekann L.
刊名: Energy Policy
ISSN: 03014215
出版年: 2020
卷: 138 语种: 英语
中文关键词: Hydropower
; Marginal value
; System integration costs
; Variable renewable energy
英文关键词: 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
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 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/167445
Appears in Collections: 气候变化与战略
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作者单位: Instituto de Economia - Universidade Federal do Rio de Janeiro (UFRJ), Brazil; Faculdade de Economia - Universidade Federal Fluminense (UFF), Brazil
Recommended Citation:
Romeiro D.L.,Almeida E.L.F.D.,Losekann L.. Systemic value of electricity sources – What we can learn from the Brazilian experience?[J]. Energy Policy,2020-01-01,138