Merchant Storage Investment in a Restructured Electricity Industry
Merchant Storage Investment in a Restructured Electricity Industry
复制标题
重组电力行业中的商业存储投资
作者：
A. Siddiqui;R. Sioshansi;Antonio J. Conejoc
电力行业的重组和自由化为能源存储投资创造了机会，这可以由利润最大化的商业存储运营商来承担。因为这样的公司只关心自己的利润最大化，所以由此产生的存储投资决策可能是社会次优的（或有害的）。建立了一个不完全竞争电力市场的双层模型。建模框架假设发电和存储操作决策在较低的水平和存储投资在较高的水平。我们的分析结果表明，相对较高（低）量的市场力量在发电部门导致低（高）存储容量投资的利润最大化存储运营商相对于福利最大化。这可能会导致净社会福利损失与利润最大化的存储运营商相比，没有存储的情况。此外，如果发电部门具有足够的竞争力，那么利润最大化的存储运营商肯定会产生净社会福利损失。使用充电发电斜坡之间的关闭和高峰期，我们诱导利润最大化的存储运营商投资在同一水平的存储容量的福利最大化的公司。这样的斜坡收费可以增加社会福利的水平以上，达到福利最大化的存储运营商。
Restructuring and liberalisation of the electricity industry creates opportunities for investment in energy storage, which could be undertaken by a profit-maximising merchant storage operator. Because such a firm is concerned solely with maximising its own profit, the resulting storage-investment decision may be socially suboptimal (or detrimental). This paper develops a bi-level model of an imperfectly competitive electricity market. The modelling framework assumes electricity-generation and storage-operations decisions at the lower level and storage investment at the upper level. Our analytical results demonstrate that a relatively high (low) amount of market power in the generation sector leads to low (high) storage-capacity investment by the profit-maximising storage operator relative to a welfare maximiser. This can result in net social welfare losses with a profit-maximising storage operator compared to a no-storage case. Moreover, there are guaranteed to be net social welfare losses with a profit-maximising storage operator if the generation sector is sufficiently competitive. Using a charge on generation ramping between off- and on-peak periods, we induce the profit-maximising storage operator to invest in the same level of storage capacity as the welfare-maximising firm. Such a ramping charge can increase social welfare above the levels that are attained with a welfare-maximising storage operator.
影响因子：
10.4
作者：
A. Shahmohammadi;R. Sioshansi;A. Conejo;S. Afsharnia
通讯作者：
A. Shahmohammadi;R. Sioshansi;A. Conejo;S. Afsharnia