The world economy will fall by about 4.4% in 2020 and global electricity demand will fall by about 2%，the biggest annual decline since the middle of the 20th century，with most countries and regions experiencing setbacks not seen in decades，with the exception of a handful of economies such as China and Vietnam，which have seen positive growth in electricity demand. Many economic demand in the northern hemisphere picked up in the summer and autumn of 2021，thanks to stringent hygiene measures in early 2021，but major countries，including the United States，India，Europe，Japan，South Korea and Southeast Asia，continued to decline throughout the year. Among them，coal，gas，nuclear power and other power generation volumes have declined，and co2 emissions associated with power generation will fall by 5% in 2020，a much larger decline than the decline in global electricity demand. Following the impact in 2020，the electricity market is expected to rebound modestly in 2021，with demand growth expected to be driven by emerging and developing economies.