How does new energy storage affect the operation and revenue of existing generation?
How does new energy storage affect the operation and revenue of existing generation?
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新能源存储如何影响现有发电的运行和收入？
DOI：
10.1016/j.apenergy.2020.116383
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发表时间：
2021
期刊：
影响因子：
11.2
通讯作者：
Lima Azevedo, Inês
中科院分区：
文献类型：
--
作者：
Goteti, Naga Srujana;Hittinger, Eric;Sergi, Brian;Lima Azevedo, Inês
随着储能通过政策或市场力量整合到电网中，它对其他发电机的调度、经济性和退役产生了影响。虽然储能和可再生能源之间的互补关系是众所周知的，但储能增加的影响并不一定限于可再生能源。这项工作模拟了新的存储对发电，运营收入和发电厂退役的系统影响，在三个层次上增加复杂性。首先，我们评估了存储对发电源的边际效应，而对市场价格或调度没有任何影响。其次，我们使用调度模型来研究散装存储在纽约独立系统运营商（NYISO），中大陆ISO（MISO），和加州ISO（CAISO），允许存储转移调度模式，并影响现有发电机的操作/收入。第三，我们通过考虑发电厂的退役来研究对发电船队的中期和长期影响，这些发电厂失去了来自新存储的足够的年收入。结果表明，边际新存储增加煤炭发电量，减少天然气发电量在西部和中西部，并在新英格兰和加州相反。随着大容量存储的增加，所有其他发电机组的经营收入都减少了，除非包括退役。考虑到退休问题，灵活性最低的发电方式--煤炭、核能和太阳能--通过储能获得了最多的运营收入。在所有情况下，简单循环燃气轮机损失的运营收入最多，因为它们在排放阶段被储存所抵消，然后在长期内退役。
As energy storage is integrated into grids through policies or market forces, it has an effect on the dispatch, economics, and retirement of other generators. While the complementary relationship between storage and renewables is well-known, the effect of storage additions is not necessarily limited to renewables. This work models the system effects of new storage on the generation, operating income, and retirement of power plants at three levels of increasing complexity. First, we evaluate the marginal effects of storage on generation sources without any effects on market prices or dispatch. Second, we use a dispatch model to study bulk storage in New York Independent System Operator (NYISO), Midcontinent ISO (MISO), and California ISO (CAISO), allowing storage to shift dispatch patterns and affect the operation/income of existing generators. Third, we examine the mid- and long-term effects on the generation fleet by accounting for the retirement of power plants that lose sufficient annual revenue from new storage. Results suggest that marginal new storage increases coal generation and decreases natural gas generation in the West and Midwest, and does the opposite in New England and California. With bulk storage additions, the operating income of all other generating units is reduced unless retirement is included. With retirements considered, the least flexible generation—coal, nuclear, and solar—gain the most operating income with storage. In all cases, simple cycle gas turbines lose the most operating income as they are offset by storage during the discharge phase and then retired in the long term.