Abstract Hydropower is the renewable energy with the highest power production worldwide. At the same time the output flow of the water that is being used for hydroelectric power production can fluctuate significantly. The ability to “recharge” the dams with water from excess variable renewable energy technologies (VRE) can be used for storage and as a buffer for smoothing the production peaks of VRE. This study presented the idea of the “Hydrobattery” scheme which combines the concepts of “open-loop” and “closed-loop” pumped storage technologies along with the concept of energy storage and water recirculation. The Canyon Ferry Dam was used as a case study and water was modelled to be recirculating back to the Dam from the Helena Valley reservoir. The hydropower production from the Canyon Ferry Dam is below the nominal value of 50 MW and has fluctuated from 34.74 MW up to 41.46 MW for the period between 2014 and 2018. The application of “Hydrobattery” would be able to increase the power output by 2.39–3.39 MW of additional power, and an increase of power production between 5.7% and 9.7%. Also, the concept of “Hydrobattery” can be used as a potential water management system for connected water reservoirs.

中文翻译：

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“水力电池”的水-能源-气候关系概念：在峡谷渡轮大坝储存多余的可变可再生能源 (VRE)

摘要 水电是世界上发电量最大的可再生能源。同时，用于水力发电的水的输出流量可能会出现显着波动。用来自过剩可变可再生能源技术 (VRE) 的水“补给”大坝的能力可用于存储和缓冲，以平滑 VRE 的生产峰值。本研究提出了“Hydrobattery”方案的概念，该方案结合了“开环”和“闭环”抽水蓄能技术的概念以及储能和水再循环的概念。峡谷渡轮大坝被用作案例研究，水被模拟为从海伦娜谷水库再循环回到大坝。Canyon Ferry Dam 的水电发电量低于 50 MW 的标称值，并在 2014 年至 2018 年期间从 34.74 MW 波动到 41.46 MW。“水电”的应用将能够将发电量提高 2.39 –3.39 MW 额外电力，发电量增加 5.7% 至 9.7%。此外，“水电”的概念可以用作连接水库的潜在水管理系统。