能源经济与金融分析研究所：澳大利亚虚拟电厂VPP实践（11页）.pdf

1、Using Distributed Energy Resources(DER)as flexible resources in the Australian Electricity Market 使用分布式能源（DER）作为澳大利亚电力市场的灵活资源Dr Gabrielle KuiperSeptember 2023VPPs in Australia 澳大利亚虚拟电厂(VPP)实践Australias National Electricity Market(NEM)澳大利亚国家电力市场www.ieefa.org2Wholesale energy-only market 能源批发市场Market

2、price cap 市场价格上限:$AUD16,600/MWh.Price floor 价格底线:-$AUD1,000/MWhNegative prices 负价格:9%of all trading intervals across the NEM Q2 2023 South Australia 17%and Victoria 13%in the same period 2023 年第二季度NEM所有交易区间的9%；同期南澳大利亚州为17%，维多利亚州为13%NEM market dynamics was lower in all mainland NEM regions except for

3、 Queensland,which saw a 3 pp increase over Q1 2023 and 7 pp over Q2 2022 to reach 9%in Q2 2023.Figure 17 Record high Q2 negative price occurrence in all NEM mainland regions Negative price occurrence in NEM mainland regions Q2s Continuing a trend observed in recent quarters,negative price occurrence

4、 continued to be more frequent in daytime hours when operational demand is lower(driven by higher distributed PV output)and large-scale VRE generation is higher.Between 0900 hrs and 1700 hrs,negative prices occurred 29%and 20%of the time in South Australia and Victoria,increases of 8 pp and 12 pp re

5、spectively on Q2 2022(Figure 18).Overnight negative price occurrence in South Australia also rose significantly,driven by periods of high wind output.Queenslands negative price occurrence between 0900 hrs and 1700 hrs rose to 25%,an increase of 19 pp due to significantly higher grid-scale and roofto

6、p PV solar output(Figure 19).The relatively low occurrence of negative prices in New South Wales,only at 7%(between 0900 and 1700),reflected increased southward flows on QNI and more frequent binding of QNI at its import limit(Section 1.4).This led to price separation between the two regions during