Taking the long view on short-run marginal emissions: how much carbon does flexibility and energy storage save?
Taking the long view on short-run marginal emissions: how much carbon does flexibility and energy storage save?
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从长远角度看待短期边际排放：灵活性和能源储存可以节省多少碳？
DOI：
10.1093/ooenergy/oiad008
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Grunewald P
中科院分区：
文献类型：
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作者：
Grunewald P
电网规模的电力储存将在电力系统向零碳过渡中发挥关键作用。在过渡期间，需要将投资引导到能够实现长期零碳运营的技术和地点，同时提供供应安全和物有所值。我们讨论了指导向清洁、安全和负担得起的解决方案过渡所需的指标和市场信号。矛盾的是，碳指标发挥着重要作用，但一旦系统接近零碳，作为决策工具的作用就会变得不那么有效。我们严格评估边际和平均排放量的作用，并质疑边际排放在可再生能源和储存相结合提供灵活性的系统中的分配。我们的结论是，对于战略投资，短期市场信号可能并不总是能够带来足够快或有远见的结果，运营决策需要考虑需求和供应的优劣顺序。
Grid-scale electricity storage will play a crucial role in the transition of power systems towards zero carbon. During the transition, investments need to be channeled towards technologies and locations that enable zero carbon operation in the long term, while also delivering security of supply and value for money. We discuss metrics and market signals that are needed to guide this transition towards clean, secure and affordable solutions. Paradoxically, carbon metrics play an important role, but become less effective as a decision tool once the system approaches zero carbon. We critically assess the role of marginal and average emission and question the allocation of marginal emissions in systems where combinations of renewables and storage deliver flexibility. We conclude that, for strategic investments, short-term market signals may not always deliver sufficiently fast or far-sighted outcomes and operational decisions need to consider the merit order of demand as well as supply.