Study: Extreme Weather Likely to Put Pressure on Power Systems
2020-03-06
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1A group of scientists are warning that weather extremes in the future and growing demand could lead to a drop in power supplied from renewable energy.
2In a new study, researchers considered how 13 extreme weather models would affect cities in Sweden.
3Their findings were recently published in Nature Energy.
4Many scientists have partly blamed human activities for rising world temperatures and an increase in extreme weather events.
5The world's power systems are expected to face pressure as more of the world's population chooses to live in cities, the study predicts.
6The United Nations has estimated that 68 percent of people will live in cities by 2050.
7That compares to about 55 percent who live in cities currently.
8One of the biggest expected pressures to face power systems will be an increase in the use of air conditioning systems because of rising temperatures.
9The research team created a series of climate models to predict how electricity demand was likely to rise and fall in 30 Swedish cities during severe weather events.
10The models showed "significant" breaks in system performance and a high risk of power blackouts.
11Dasun Perera is with the Federal Laboratories for Materials Science and Technology in Switzerland.
12He was a lead writer of the study.
13Perera said in a statement, "We observed that current energy systems are designed in a way that makes them highly susceptible to extreme weather events such as storms and heat waves."
14The researchers found that extreme weather will make it difficult to balance the demand for power with production.
15"This will make it difficult to match the energy demand and renewable power generation," Perera said.
16"Dealing with the effects of climate change is going to prove harder than we previously thought."
17Perera told the French Press Agency AFP that extreme weather events could reduce the reliability of power supplies by up to 16 percent.
18This, he said, could easily lead to "blackouts resulting in huge economic losses."
19Perera said that energy experts do not consider the effects of extreme climate events when planning and designing energy systems.
20In a separate article published in Nature Energy, U.S. and European researchers noted that traditional energy models often fail to consider extreme weather.
21The researchers called on world governments to consider the short-term risks of extreme heat and cold when planning and building energy systems.
22They said the creation of such systems would require "new thinking, new experiments, and, quite possibly, new combinations of tools."
23The researchers added: "This is a tall order to be sure, but there is no risk in trying."
24I'm Bryan Lynn.
1A group of scientists are warning that weather extremes in the future and growing demand could lead to a drop in power supplied from renewable energy. 2In a new study, researchers considered how 13 extreme weather models would affect cities in Sweden. Their findings were recently published in Nature Energy. 3Many scientists have partly blamed human activities for rising world temperatures and an increase in extreme weather events. 4The world's power systems are expected to face pressure as more of the world's population chooses to live in cities, the study predicts. The United Nations has estimated that 68 percent of people will live in cities by 2050. That compares to about 55 percent who live in cities currently. 5One of the biggest expected pressures to face power systems will be an increase in the use of air conditioning systems because of rising temperatures. 6The research team created a series of climate models to predict how electricity demand was likely to rise and fall in 30 Swedish cities during severe weather events. The models showed "significant" breaks in system performance and a high risk of power blackouts. 7Dasun Perera is with the Federal Laboratories for Materials Science and Technology in Switzerland. He was a lead writer of the study. Perera said in a statement, "We observed that current energy systems are designed in a way that makes them highly susceptible to extreme weather events such as storms and heat waves." 8The researchers found that extreme weather will make it difficult to balance the demand for power with production. "This will make it difficult to match the energy demand and renewable power generation," Perera said. "Dealing with the effects of climate change is going to prove harder than we previously thought." 9Perera told the French Press Agency AFP that extreme weather events could reduce the reliability of power supplies by up to 16 percent. This, he said, could easily lead to "blackouts resulting in huge economic losses." 10Perera said that energy experts do not consider the effects of extreme climate events when planning and designing energy systems. 11In a separate article published in Nature Energy, U.S. and European researchers noted that traditional energy models often fail to consider extreme weather. 12The researchers called on world governments to consider the short-term risks of extreme heat and cold when planning and building energy systems. They said the creation of such systems would require "new thinking, new experiments, and, quite possibly, new combinations of tools." 13The researchers added: "This is a tall order to be sure, but there is no risk in trying." 14I'm Bryan Lynn. 15Bryan Lynn wrote this story for VOA Learning English, based on reports from Agence France-Presse, Nature Energy and the Ecole Polytechnique Federale de Lausanne. Mario Ritter, Jr. was the editor. 16We want to hear from you. Write to us in the Comments section, and visit our Facebook page. 17________________________________________________________________ 18Words in This Story 19renewable - adj. any naturally occurring kind of energy, such sunlight or wind 20significant - adj. important or noticable 21susceptible - adj. easily influenced or harmed by something 22match - v. to be the same as 23reliability - n. ability to be trusted or believed 24order - n. a request for a wish to be fulfilled