Renewables and the grid: understanding intermittency
Renewables and the grid: understanding intermittency
复制标题
可再生能源和电网：了解间歇性
DOI：
10.1680/ener.2007.160.1.31
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
J. Skea
中科院分区：
文献类型：
--
作者：
R. Gross;P. Heptonstall;M. Leach;D. Anderson;T. Green;J. Skea
本文回顾了英国能源研究中心关于间歇性或可变可再生发电技术的成本和影响的报告中的关键问题和研究结果。研究了管理电网的相关原则，并分析了增加大量间歇性发电时发生变化的方面。间歇性发电机的影响和成本只能在其所属系统的特性的背景下进行量化。研究并解释了这些影响因系统而异的主要原因。分析了英国间歇性渗透率高达总供电量 20% 时可能产生的影响和成本的证据。影响的两个主要类别是系统平衡和系统可靠性，并且对这些因素的成本进行了量化。估计系统平衡需要额外 2-3 英镑/兆瓦时，系统可靠性需要 3-5 英镑/兆瓦时。
This paper reviews the key issues and fndings of the UK Energy Research Centre report on the costs and impacts of intermittent or variable renewable electricity-generating technologies. The relevant principles of managing electricity networks are examined and aspects that change when significant intermittent generation is added are analysed. The impacts and costs of intermittent generators can be quantificed only in the context of the characteristics of the system of which they form part. The principal reasons why these impacts differ from one system to another are examined and explained. The evidence for likely impacts and costs in the UK, at intermittent penetration levels up to 20% of total electricity supplied, is analysed. The two main categories of impact are on system balancing and system reliability, and costs are quanti.ed for these factors. Estimates are in the range of an additional £2–3/MWh for system balancing and £3–5/MWh for system reliability.