Dive Brief:
- Reliability, markets and operational functions performed well in the Midwest Independent System Operator (MISO) territory in September, the grid operator said, though energy prices were slightly higher.
- Real-time average energy prices increased in September due to forced outages and local emergency events, and the result was prices that were higher than in both August 2014 and September 2013, according to reporting from Platts.
- Load peaked at 111.2 GW on Sept. 4 and averaged 79.2 GW, lower than August 2014 and September 2013.
Dive Insight:
In the MISO report to the Board of Directors Market Committee, the operator said wind energy made up 4.7% of the monthly total, compared with 2.2% in August and 6.9% in September last year.
Real-time prices averaged $33.09/MWh in September. "A Real-Time price premium was noted, primarily due to forced outage driven scarcity and local emergency events," MISO said in the report, dated Oct. 22. Real time prices in August averaged $32.12/MWh and in $30.27/MWh in September 2013.
"An average price difference of $8.16/MWh occurred between the North and the Central Regions, mainly driven by the increased generation outages and wind output in the areas," the report also noted.
Daily generation forced outages in September 2013, the presentation material shows, were about 16,000 MW.