Nearly all of Texas’ electric generation units and transmission facilities have passed the state’s new winterization rules, the state grid reported just before the expected coldest day so far this winter hits the West Texas Permian oil and natural gas producing area on Thursday. Extreme cold in Texas, which caused power plants and gas pipes to freeze last February, was the reason state agencies adopted new power plant winterization and other rules to avoid a repeat of last winter’s energy emergency. The Electric Reliability Council of Texas (ERCOT), which operates most of the state’s power grid, on Tuesday filed its final winter weatherization readiness report, which showed 321 out of 324 facilities passed the new rules. “The Texas electric grid is more prepared for winter operations than ever before,” Interim ERCOT Chief Executive Brad Jones said in a release. Last year’s Winter Storm Uri killed more than 200 people, caused …