• SPP kept its East Balancing Authority Area under a Resource Advisory until 10pm Central Time on 6 September
  • The grid remained under normal operating conditions, with SPP citing severe heat, forecast uncertainty and potentially higher demand

The fact

Southwest Power Pool kept its East Balancing Authority Area under a Resource Advisory through the evening of 6 September as it monitored severe seasonal heat and potentially higher electricity demand. SPP declared the advisory on 3 September for a period beginning at noon on 4 September and ending at 10pm Central Time on 6 September. It cited forecast uncertainty, the possibility of higher-than-normal demand and severe seasonal hot weather.

SPP said a Resource Advisory remains within normal operating conditions and did not ask the public to conserve electricity. The advisory gives generators and transmission operators advance notice of potentially tighter conditions so they can review available resources and planned equipment outages before any higher alert level is required.

The assessment

The advisory gives generators and transmission operators time to prepare without treating the situation as an electricity shortage. SPP had not moved into emergency conditions or asked customers to reduce demand, so the immediate task was readiness rather than curtailment.

That distinction matters for large electricity users as well. A Resource Advisory signals that operating conditions deserve closer attention, but it does not by itself mean power use must change. The relevant question is what actions an organisation has tied to each grid alert level and when those actions are supposed to begin.

For BTW readers, the advisory is an early operating signal rather than an emergency instruction. Data centres and other large loads need to distinguish that stage from a conservation request or curtailment event while continuing to watch whether grid conditions tighten.

What to watch

Watch whether SPP ends the Resource Advisory as scheduled or moves to a higher alert level. Peak-load and reserve data for the period would also show how close actual conditions came to the tighter supply-and-demand balance that prompted the advisory.