ercot logo over wind turbines

The Electric Reliability Council of Texas (ERCOT) declared it will have “sufficient generating capacity” for the fall and winter season.

The assessment comes as the result of the group’s Seasonal Assessment of Resource Adequacy (SARA) report, a document it releases ahead of each of the four seasons.

ERCOT Manager of Resource Adequacy Pete Warnken provided the organization’s official statement about its fall and winter generation capacity.

“Prior to each season, we study a range of scenarios to determine whether extreme temperatures and season-specific resource availability risks will have an impact on our ability to meet the forecasted peak demand and maintain sufficient operating reserves. Our studies show we have sufficient generation for the fall season.”Said Warnken.

SARA Figures for Fall

ERCOT makes their SARA reports available to the public. According to their most recent report, ERCOT’s total resources for the fall months (October to November) are 83,984 megawatts (MW).

The peak demand for that same time frame will be an estimated 61,034 MW, an estimate that ERCOT says is based on average weather conditions at the time of the fall peak demand from 2003 to 2017.

Fall capacities by generation type are, according to ERCOT’s SARA report:

  • Nuclear, coal, gas and biomass: 66,234.4 MW
  • Hydro: 556.6 MW
  • Wind (Coastal): 19,330.4 MW
  • Solar: 1,865.8 MW

SARA Figures for Winter

The winter numbers are similar to the fall data. The total resources for the winter months of December and January are 82,740 MW and the peak demand for that same time frame is 62,257 MW, according to the report.

ERCOT’s reserve capacity is predicted to be 20,483 MW but, based on the projections, those reserves should be under no threat during the winter months.

The fall capacity by generation type is as follows:

  • Nuclear, coal, gas and biomass: 68,021.7 MW
  • Hydro: 556.6 MW
  • Wind (Coastal): 19,250.1 MW
  • Solar: 1,865.8 MW
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