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On April 25, Iranian President Pezechzian posted on his personal social media account that the day marked the anniversary of the "Tabas incident," and stated that a similar incident had occurred again this year in southern Isfahan. Pezechzian said he hoped these "historic setbacks" would "sound an alarm for hegemonists."On April 25, the Chinese Embassy in Mali issued a notice advising Chinese citizens against traveling to Mali. The notice stated that the General Staff of the Malian Armed Forces issued a statement on the 25th, saying that several military facilities and camps in Mali, including the capital Bamako, were attacked by unidentified terrorist organizations early that morning. Fighting is still ongoing. Bamako International Airport has been temporarily closed. The embassy reminds Chinese citizens in Mali to be vigilant, closely monitor the security situation, stay away from dangerous areas, and avoid unnecessary travel. In case of emergency, remain calm, prioritize personal safety, and contact the police and the Chinese Embassy in Mali immediately after ensuring your own safety.On April 25, Iranian President Peskov stated during a visit to the Ministry of the Interior and a video conference of provincial governors that the attacks and blockades targeting infrastructure by hostile forces in Iran are intended to incite public discontent, and Iran must prevent this from being achieved. In his speech, he thanked local officials for their work and called on the public to conserve electricity and reduce energy consumption. He stated that while other sacrifices may not be necessary at present, it is essential to strengthen control over electricity and energy use.On April 25, Irans Tasnim News Agency quoted a spokesperson for the central headquarters of the Iranian Armed Forces, Hatam Anbia, as saying that if the US military continues its blockade, looting, and piracy activities in the region, it will inevitably face a response from Irans powerful armed forces.According to Saudi Arabias Al Arabiya TV, Iranians prefer to negotiate with US Vice President Vance.

The Texas Heat Wave Reveals Electricity Grid Congestion Issues

Charlie Brooks

May 18, 2022 10:14

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A plea over the weekend for Texans to limit their air conditioner and appliance use after six power plants went down reveals a weakness in the state's grid: transmission line congestion.


Since last year's February freeze, which caused more than 200 deaths amid widespread blackouts and power-price hikes that forced at least five power marketers into bankruptcy, power system reliability has been a concern. Electric Reliability Council of Texas (ERCOT), the state's grid operator, established obligatory reliability criteria for utilities to prevent future disruptions.


In contrast to natural gas shortages and frozen power plants, the weekend power alert had nothing to do with fuel availability. According to the state, six power plants producing 2,900 megawatts of energy "trip off," triggering the caution.


According to energy analysts, the consequent wholesale prices of almost $4,000 per megawatt hour in Houston and negative prices 150 miles (241 kilometers) distant demonstrated that power was unable to meet demand elsewhere.


According to Ramanan Krishnamoorti, chief energy officer at the University of Houston, pricing anomalies and negative prices may have resulted from transmission issues.


According to Joshua Rhodes, a research associate at the University of Texas at Austin Energy Institute and Webber Energy Group, the likelihood of many power plants being offline for their own unique reasons is vanishingly unlikely.


ERCOT declined to make an official request for comment on Monday, and a spokesman refused to identify the cause of the shutdown of six power facilities. The operator stated that it will have enough power for the state this summer.


Neal Dikeman, a partner at the investment firm Energy Transition Ventures and former director of a smart grid startup that supplies power flow management, predicts that congestion will continue to be a problem in Texas as the summer progresses.


"During the summer, there is often congestion due to people turning on their air conditioners, which causes the temperature limitations of the transmission lines to be reached."

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