Mexico extends application deadline for 935 MW of energy storage. Investors have until 2027

Mexico’s Ministry of Energy has extended the registration deadline for large-scale standalone energy storage systems to March 1, 2027. The decision concerns a national strategic program aimed at attracting investments with a combined power capacity of 935 MW and an energy storage capacity of 2,805 MWh. The original schedule called for registration to close at the end of October 2026. However, the ministry decided to extend the process to give developers more time to prepare applications and grid connection studies.

More than 2.8 GWh of storage capacity. How has Mexico allocated capacity across regions?

The government program focuses on 3-hour energy storage systems designed to directly support grid stability, without being connected to a specific renewable energy facility.

Although final decisions will be made by the electricity system operator, the Ministry of Energy has established a preliminary allocation of power capacity across the country’s regions:

• North – 245 MW
• East – 180 MW
• Northwest – 160 MW
• Baja California Peninsula – 140 MW
• Yucatán Peninsula – 140 MW
• Baja California Sur – 50 MW
• West – 20 MW

Authorities emphasize that these allocations are indicative. However, the grid operator will reject applications for projects located in areas without actual power capacity shortages.

Strict selection criteria and priority for projects operational before 2030

The deadline extension does not change the technical requirements or the total power capacity covered by the application process. The government aims to attract well-developed projects while avoiding administrative bottlenecks.

When evaluating applications, the system operator will primarily assess the impact of each installation on system reliability, the reduction of transmission bottlenecks, and grid operational flexibility. Projects that begin commercial operations before 2030 will receive the highest scores. In addition, preference will be given to projects developed in cooperation with the state-owned energy company CFE.