Among the topics covered by WECC’s State of the Interconnection report, one subject stands out: the impact of extreme natural events on the Western grid.

Persistent triple-digit temperatures across much of Texas have forced ERCOT to issue yet another operating condition notice as it flirts with 80-GW demand.

ERCOT demand set a new demand mark for the 11th time this year as a heat dome over the Southern Plains continues to produce record-breaking temperatures.

ERCOT demand flirted with 80 GW for the first time as the Texas grid operator set yet another record, its 10th, for peak demand this year.

Warnings that this week would include the highest temperatures yet this summer proved to be accurate as ERCOT set yet another record for peak demand.

Continued record electric demand, 13 GW of thermal outages and reduced renewable production forced ERCOT to again issue a conservation appeal.

SPP set a new mark for peak demand July 11, wiping out a record that was less than a week old when the system met load of 51.4 GW.

ERCOT flirted with potential disaster July 11 after saying it was short on capacity, but system demand was reduced enough to keep the lights on.

SPP has set a new record by meeting 51.1 GW of demand amid extreme heat and weather advisories in its Great Plains footprint.

The heat is back on in Texas after a brief respite, with ERCOT again setting records as peak demand reaches the extreme levels of ISO's predictions.