So many of the misleading narratives about the #TexasBlackout are missing a fundamental understanding of our electric power supply, and its mutual vulnerabilities with our gas systems. We're facing an _energy systems_ crisis, not just an electricity crisis.

To understand why, we can begin by seeing how ERCOT generates power on average. Nearly half is from gas. Wind topped coal last year for the first time. We have just 4 nuclear units, little hydro, and solar soaring from a small base.

That supply provides power for most but not all of the state. And the grid is contained within Texas, with very little transmission linking to the rest of the country or Mexico. So what happens in Texas, stays in Texas.

You'll also notice that the grid can operate just fine with very high levels of wind -- over 50% at times -- at that our peaks typically come in summer. We also have a minuscule but growing amount of battery storage (0.2 GW vs. 74 GW peak demand).

Before each season, ERCOT issues a Seasonal Assessment of Resource Adequacy. It's meant to plan for the peak demand expected that season.