Oct. 30 — It’s been more than eight months since a glacial chill—the magnitude of which nobody quite anticipated—crept across Texas, forcing power plants offline, freezing natural gas wells and wreaking havoc on every part of the state’s energy system. Millions were plunged into darkness for days. Hundreds of people died. Damages topped $20 billion. And Texas’s leaders vowed to do everything within their power to prevent such a crisis from happening again.