Federal regulators and Texas Gov. Greg Abbott announced investigations in the midst of a historic power outage crisis caused by extreme cold in the central United States. Abbott, a Republican, called for an emergency reform of the Electric Reliability Council of Texas (ERCOT), saying that it hasn’t been “reliable” for “the past 48 hours.” Separately, the Federal Energy Regulatory Commission and North American Electric Reliability Corporation opened an inquiry into the grid operations “during the extreme winter weather conditions currently being experienced by the Midwest and South-central states,” according to a joint statement from the two agencies. “The severe cold weather over the weekend, and continuing into this week, has contributed to power outages affecting millions of electricity customers throughout the region.” However, the two federal agencies noted that emphasis has to be placed on restoring power to customers and making sure the electrical grid is reliable. Abbott released a statement …