一种基于“能量”成本的储能技术评价新方法

doi:10.12028/j.issn.2095-4239.2018.0175

摘要/Abstract

摘要： 近年来，中国和世界一直致力于发展储能技术，为电网运行提供调峰、调频、黑启动、需求响应支持，并帮助解决可再生能源间歇性、不稳定性、不可调节性等问题。本文回顾总结了国内目前评价储能技术常用的技术指标和经济效益指标。并站在能源可持续发展的角度介绍了基于“能量”成本评价储能技术的新理念及方法，阐述了基于‘能量’成本评价不同技术节能潜力的必要性，引入了全生命周期能源投入存储回报（energy stored on Investment，ESOI）这一新指标。ESOI比值越高说明该技术“净能量”越高，生产对能源依赖度越低。本文研究对比了不同储能技术的ESOI，结果表明以压缩空气储能（CAES）和抽水储能（PHS）为代表的物理储能技术的ESOI远远大于电化学储能，其中，过去常用的铅酸电池（PbA）的ESOI最小，只有2。

关键词: 能量成本, 储能技术评价, 能源投入存储回报, 全生命周期

Abstract: In recent decades, China and the World have been devoting a significant effort to the development of energy storage technologies. Energy storage can support electrical grids in terms of peak-shaving, frequency regulation, black start, demand side response, and help resolving challenges associated with intermittency and fluctuation of renewables. This article reviews technical and economical evaluation indicators of a variety of energy storage technologies and introduces an evaluation method by Charles J. Barnhart and Sally M. Benson with a focus on energetic costs of storage. This leads to a new metric based on the energetic cost:energy stored on Investment (ESOI). A higher ESOI indicates that more "net energy" is returned. Through studying ESOI for different energy storage technologies, we found that the ESOI of mechanical based energy storage technologies is far higher than the chemical based energy storage technologies. The commonly used lead-acid (PbA) batteries only have an ESOI of 2.

Key words: energetic cost, evaluation of energy storage technologies, energy stored on investment (ESOI), whole life cycle

中图分类号:

闫俊辰, JOHN C CRITTENDEN. 一种基于“能量”成本的储能技术评价新方法[J]. 储能科学与技术, 2019, 8(2): 269-275.

YAN Junchen, JOHN C CRITTENDEN. An evaluation method of energy storage technologies based on energetic costs[J]. Energy Storage Science and Technology, 2019, 8(2): 269-275.

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