Energy Storage Working Group Workshop

传统上，电力是瞬间产生和消耗的，很少储存起来。尽管自20世纪之交以来，抽水蓄能等电网规模的储能技术已经存在，但由于缺乏经济驱动因素或缺乏合适的景观，或两者兼而有之，储能技术的广泛采用已被有效地搁置。能源存储（ES）系统有几个潜在的应用。其中一些应用与客户直接相关，如能源套利和传输拥塞缓解，而其他应用则更为间接，如输配电升级延迟，实际功率损耗减少和可靠性提高。可再生能源的进一步快速发展和全面采用导致能源供应不可调度，间歇性，时变，不一定与系统需求相关。可再生能源整合带来的挑战强调了为跨时间目的存储能量的需求，增加了短期和多小时斜坡率，更高的系统平衡能力等，所有这些都可以由ES系统提供。ES技术具有不同的特性、资本和运营成本、环境足迹、运营风险、性能和预期寿命。这些特性决定了它们适合各种应用。此外，ES系统有四个不同的方面：1)存储元件，2)功率转换系统，3)控制和接口，使电力系统能够远程监控和控制，以及4)电力系统应用。在许多情况下，这些都是在筒仓中开发的。提议的网络将通过本次研讨会的对话建立，将把这四个领域的研究人员聚集在一起，开发同质的ES系统。此外，公用事业、工业和商业部门等客户对各种应用程序也有很大的兴趣。来自这些客户群体的代表被邀请成为这个研讨会和网络的组成部分，从他们的角度指导研发，以创建同质的ES系统。

Traditionally, electricity is produced and consumed instantaneously and seldom stored. Despite the existence of grid-scale storage technologies such as pumped hydro-electric storage since the turn of the 20th century, the widespread adoption of energy storage technologies has been effectively consigned, due in part to a lack of economic drivers or lack of suitable landscape or both. Utilities have several potential applications for energy storage (ES) systems. Some of these applications are directly customer related, like energy arbitrage and transmission congestion relief, while others are more indirect, like transmission and distribution upgrade deferral, real power loss reduction, and increased reliability. Further rapid development and adoption of renewables across the board has led to an energy supply that is non-dispatchable, intermittent, time-varying, and not necessarily correlated with system demand profile. Challenges posed by integration of renewables have accentuated requirements for storing energy for inter-temporal purposes, increased short-term and multi-hour ramp rates, higher system balancing capacities, etc. all which can be supplied by ES systems. ES technologies have varying characteristics, capital and operating costs, environmental footprints, operational risk, performance, and life expectancy. These characteristics determine their suitability for various applications. Further, there are four distinct aspects to ES systems: 1) the storage element, 2) power conversion system, 3) control and interface enabling remote monitoring and control by a power system, and 4) power system application. In many instances, these are developed in silos. The proposed network, to be established via dialogue enabled by this workshop, shall bring researchers across these four silos together to develop homogeneous ES systems. Further, there is a significant interest from customers such as utilities, industries and commercial sectors for varying applications. Representatives from these customer groups are invited to be an integral part of this workshop and network to guide R&D from their perspective to create homogenous ES systems.