4.1。T IME F ACTOR ........................................................................................................................................ 18 4.2.w eather条件..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 20 4.3。D IVERSITY IN LOAD .................................................................................................................................. 21 4.4.E CONOMIC FACTOR ................................................................................................................................. 22 4.5.H OLIDAYS ............................................................................................................................................. 24 4.6.us t ime t ime od cureve p atterns and s Hifting d emand t nforme thrunce thrunce t n od c u d cure t the the the d ime d emand t by thrunce the the d ime t rends thrunce thrunce。i在日食期间的文化习惯......................................................................................................................................................................... 26 4.8。I MPACT OF LOCKDOWN ............................................................................................................................ 26 4.9.'l ight -off'事件在2020年5月5日。E LECTRIC VEHICLES .................................................................................................................................. 28