Abstract Flexible power provision from biogas can significantly contribute to energy systems with high shares of renewables. However, the characteristics and demands for this flexibility are not clearly defined or measured. In this paper eight indicators are defined to shape “flexibility” and perform a downstream investigation of eight research projects focusing on flexible energy provision of biogas plants. The indicators are structured in three dimensions (1) velocity (ramps) by which the system can be modulated, (2) power range (bandwidth) and (3) duration for specific load conditions. Based on these indicators bottlenecks for the flexibility potential were identified. One crucial result shows that short-term flexibility of biogas plants is mainly driven by properties of the combined heat and power unit (velocity and bandwidth). The long-term flexibility depends mainly on gas storage, mode of operation and ability for modulation of the target gas production.

中文翻译：

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如何衡量灵活性——沼气厂需求驱动发电的性能指标

摘要 沼气的灵活供电可以显着促进具有高可再生能源份额的能源系统。然而，这种灵活性的特征和需求并没有明确定义或衡量。在本文中，定义了八个指标来塑造“灵活性”，并对八个专注于沼气厂灵活能源供应的研究项目进行下游调查。这些指标由三个维度构成：(1) 系统可通过其调制的速度（斜坡），(2) 功率范围（带宽）和 (3) 特定负载条件下的持续时间。基于这些指标，确定了灵活性潜力的瓶颈。一项关键结果表明，沼气厂的短期灵活性主要受热电联产机组的特性（速度和带宽）驱动。