V2EX power demand

Power Demand

Definition / 定义

“Power demand”指电力需求:在某一时间或时间段内,用户、地区或系统对电力(功率/电能供应)的需要量,常用于电网运行、能源规划与经济分析语境。(也可泛指“对权力的要求/诉求”,但更常见的是电力含义。)

Pronunciation / 发音

/par dmnd/

Examples / 例句

Power demand rises in the evening.
傍晚时电力需求会上升。

As temperatures soared, the city’s power demand hit a new peak, forcing the grid operator to issue conservation alerts.
随着气温飙升,该市电力需求创下新高,迫使电网运营方发布节电提醒。

Etymology / 词源

Power源自拉丁语 potere / posse(“能够、力量”相关),在现代工程与物理语境中常指“功率/动力/电力”。Demand源自古法语 demander(“要求、请求”),进一步来自拉丁语 demandare(“委托、要求”)。组合成“power demand”后,多用于电力系统中表示“对电力的需求(负荷需求)”。

Related Words / 相关词汇

Literary Works / 文学作品

  • Daniel Yergin, The Quest: Energy, Security, and the Remaking of the Modern World(讨论能源体系与用能需求,常涉及电力需求与峰值问题)
  • Vaclav Smil, Energy and Civilization: A History(从历史视角谈能源与社会发展,涉及电力与需求变化)
  • Paul L. Joskow(编/论文集常见于能源经济学语境), Electricity Market Reform 相关著作与论文(频繁使用“power demand”描述市场与负荷需求)
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