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Energy & Science

Power Outages Main Cause of Oil, Gas Shut-Ins

  • Calpine, Vistra, NRG point to grid and gas supply issues
  • Texas house, senate hold simultaneous hearings on crisis
High voltage transmission towers in Houston, Texas.
High voltage transmission towers in Houston, Texas.Photographer: Justin Sullivan/Getty Images

Texas lawmakers’ attempt to understand why the state’s power system failed last week yielded plenty of blame but few clear answers on how to prevent a similar crisis in the future.

In two marathon hearings, lawmakers grilled the state’s biggest power providers, its grid operator and regulators about the blackouts that left more than four million homes and businesses without heat, light and water during a deep winter freeze.