实时定价与清洁电力成本
Real-Time Pricing and the Cost of Clean Power
American Economic Journal: Economic Policy · 2024 · [{"name": "Imelda Imelda", "affiliation": ["Graduate Institute of International and Development Studies"]}, {"name": "Matthias Fripp", "affiliation": ["Environmental Defense Fund"]}, {"name": "Michael J. Roberts", "affiliation": ["University of Hawaiʻi Sea Grant"]}]
中文摘要
太阳能和风能如今已比化石燃料更便宜，但存在间歇性问题。供给侧波动性的增加意味着采用实时零售定价（RTP）的潜在收益日益增长。我们构建一个联合求解投资、供给、储能与需求的模型，求解夏威夷瓦胡岛按时间顺序细致刻画的动态均衡，以此评估RTP的潜在收益。研究发现，在保持需求假设不变的情况下，在高可再生能源占比的系统中，RTP降低成本的效果约为化石燃料系统的6至12倍，显著降低了清洁能源整合的成本。（JEL G31, L94, L98, Q42, Q48）
Abstract
Solar and wind power are now cheaper than fossil fuels but are intermittent. The extra supply-side variability implies growing benefits of using real-time retail pricing (RTP). We evaluate the potential gains of RTP using a model that jointly solves investment, supply, storage, and demand to obtain a chronologically detailed dynamic equilibrium for the island of Oahu, Hawai‘i. We find that, holding demand assumptions fixed, RTP reduces costs in high-renewable systems by roughly 6 to 12 times as much as in fossil systems, markedly lowering the cost of clean energy integration. (JEL G31, L94, L98, Q42, Q48)