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How does new energy storage affect the operation and revenue of existing generation?
Applied Energy ( IF 11.2 ) Pub Date : 2021-01-10 , DOI: 10.1016/j.apenergy.2020.116383
Naga Srujana Goteti , Eric Hittinger , Brian Sergi , Inês Lima Azevedo

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.



中文翻译:

新能源存储如何影响现有发电的运营和收入?

由于储能通过政策或市场力量整合到电网中,因此会影响其他发电机的调度,经济和报废。虽然存储与可再生能源之间的互补关系是众所周知的,但添加存储的效果并不一定限于可再生能源。这项工作以复杂性不断提高的三个层次来模拟新存储对发电厂的发电量,运营收入和报废的系统影响。首先,我们评估存储对发电资源的边际影响,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纽约独立系统运营商(NYISO),中洲ISO(MISO)和加利福尼亚ISO(CAISO)的大容量存储,从而允许存储改变调度模式并影响现有发电机的运行/收入。第三,我们通过考虑因新存储而失去足够年收入的电厂的退役,来检查对发电船队的中长期影响。结果表明,西部和中西部的少量新储量增加了煤炭的产生,减少了天然气的产生,而在新英格兰和加利福尼亚州则相反。加上大容量存储,除非包括退休金,否则所有其他发电机组的营业收入都会减少。考虑到退休,最不灵活的发电(煤炭,核能和太阳能)通过存储获得最大的营业收入。在所有情况下,简单循环燃气轮机损失的经营收入最多,因为它们在放电阶段被存储抵消,然后长期退役。我们通过考虑因新存储而失去足够年收入的电厂的退役,来检查对发电船队的中长期影响。结果表明,西部和中西部的少量新储量增加了煤炭的产生,减少了天然气的产生,而在新英格兰和加利福尼亚州则相反。加上大容量存储,除非包括退休金,否则所有其他发电机组的营业收入都会减少。考虑到退休,最不灵活的发电(煤炭,核能和太阳能)通过存储获得最大的营业收入。在所有情况下,简单循环燃气轮机损失的经营收入最多,因为它们在放电阶段被存储抵消,然后长期退役。我们通过考虑因新存储而失去足够年收入的电厂的退役,来检查对发电船队的中长期影响。结果表明,西部和中西部的少量新储量增加了煤炭的产生,减少了天然气的产生,而在新英格兰和加利福尼亚州则相反。加上大容量存储,除非包括退休金,否则所有其他发电机组的营业收入都会减少。考虑到退休,最不灵活的发电(煤炭,核能和太阳能)通过存储获得最大的营业收入。在所有情况下,简单循环燃气轮机损失的经营收入最多,因为它们在放电阶段被存储抵消,然后长期退役。结果表明,西部和中西部的少量新储量增加了煤炭的产生,减少了天然气的产生,而在新英格兰和加利福尼亚州则相反。加上大容量存储,除非包括退休金,否则所有其他发电机组的营业收入都会减少。考虑到退休,最不灵活的发电(煤炭,核能和太阳能)通过存储获得最大的营业收入。在所有情况下,简单循环燃气轮机损失的经营收入最多,因为它们在放电阶段被存储抵消,然后长期退役。结果表明,西部和中西部的少量新储量增加了煤炭的产生,减少了天然气的产生,而在新英格兰和加利福尼亚州则相反。加上大容量存储,除非包括退休金,否则所有其他发电机组的营业收入都会减少。考虑到退休,最不灵活的发电(煤炭,核能和太阳能)通过存储获得最大的营业收入。在所有情况下,简单循环燃气轮机损失的经营收入最多,因为它们在放电阶段被存储抵消,然后长期退役。除非包括退休在内,否则所有其他发电机组的营业收入都会减少。考虑到退休,最不灵活的发电(煤炭,核能和太阳能)通过存储获得最大的营业收入。在所有情况下,简单循环燃气轮机损失的经营收入最多,因为它们在放电阶段被存储抵消,然后长期退役。除非包括退休在内,否则所有其他发电机组的营业收入都会减少。考虑到退休,最不灵活的发电(煤炭,核能和太阳能)通过存储获得最大的营业收入。在所有情况下,简单循环燃气轮机损失的经营收入最多,因为它们在放电阶段被存储抵消,然后长期退役。

更新日期:2021-01-10
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