The firm energy obligations auction held on May 22, 2026, assigned 4,069.7 MW of new capacity to Colombia's national grid starting in December 2026.
XM, the electricity market operator, announced the results on May 23. Eighty-five plants participated and 77 received assignments, including 15 new plants and one existing plant with works.
The capacity comes mainly from thermal plants with 2,276.8 MW, followed by solar with 1,546.9 MW and wind with 246 MW. Leading regions are Magdalena with 2,336 MW, Santander with 521.8 MW, and Guajira and Cesar with 426 MW.
Closing prices were US$16.4/MWh for plants with higher variable costs and US$22/MWh for lower ones, per Creg resolution 101 066 of 2024. The auction was called by Creg through Resolution 101 079 of 2025.
