MISO reported relatively lower costs and outages in August while it served its annual peak late in the month.

MISO said it managed a milder summer overall compared to previous years, though it weathered two hurricanes and escalated into emergency warnings during a heat wave.

MISO set its 122-GW summertime peak on the unofficial last week of summer, with widespread heat necessitating back-to-back maximum generation warnings.

MISO expects a hot summer and should be able to survive load peaks into the 120-GW range, but the system could be on the brink if a scorching day produces demand near 130 GW.

MISO's August demand rose compared to a year ago, while prices dropped by nearly two-thirds.

MISO officials said they probably could have held off their decision to call a summertime emergency in late August.

MISO instated maximum generation procedures Thursday to manage a pervasive heat wave blanketing its footprint.

MISO presided over routine operations in June, with an average 81-GW load and diminished wholesale prices.

Temperatures in Austin topped out at 105 degrees Fahrenheit, helping ERCOT to again set a record for hourly peak demand when load averaged 82.03 GW.

Former EIA Administrator Linda Capuano has been appointed to ERCOT's Board of Directors.