The New York Times has created a series of visualizations that illustrate the impact recent frigid temperatures have had on Texas’ power sources. One timeline shows that when a major winter storm began on February 14, generating power from natural gas, the state’s top source of electricity, was hit hardest. Power plants were generating 10,000 fewer megawatt hours on average after the storm hit. Another chart compares power generation during the storm to the worst-case scenarios the Electric Reliability Council of Texas (ERCOT) had planned. The chart shows that ERCOT’s estimate for peak demand and extreme outages fell short by over 8,000 megawatts the evening the storm hit.