Lack of Fuel Diversity and Availability:
Heavy reliance on natural gas poses risks related to fuel supply disruptions and volatility in availability .
To mitigate these risks, entities should monitor fuel availability, upgrade infrastructure, improve operational tools, and diversify their fuel mix to maintain generation reliability. The transition to alternative fuels and increased integration of storage technologies is essential for long-term fuel security and grid reliability.
Why It Matters
Fuel supply diversity is critical to system resilience. Increased reliance on natural gas and variable energy resources can reduce flexibility, especially during extreme weather. Limited fuel options can also lead to price volatility and supply constraints, jeopardizing power availability during peak demand periods.
What SERC Is Doing
SERC monitors trends in fuel mix and availability across the region. Through seasonal assessments and outreach, SERC helps entities understand risks associated with over-reliance on a single fuel type and promotes strategies for backup fuel planning. SERC collaborates with NERC and stakeholders to model and mitigate potential impacts associated with reduced fuel diversity and supply uncertainty.
What You Can Do
Evaluate your fuel mix and assess backup fuel availability
Develop contingency plans for primary and secondary fuel disruptions
Share supply chain and operational challenges with SERC
Resource Downloads
SERC 2025 Summer Assessment
The 2025 SERC Reliability Corporation (SERC) Summer Reliability Assessment Report evaluates the resource and transmission adequacy to meet projected peak demand under various scenarios for the upcoming summer season across the SERC region.
2024-25 SERC Winter Reliability Assessment
The 2024-25 SERC Reliability Corporation (SERC)1 Winter Reliability Assessment Report evaluates the resource and transmission adequacy to meet projected peak demand for the upcoming winter season across the SERC region, which includes all or portions of 16 southeastern and central states.
Committees
SERC’s vibrant Technical Committees and their subgroups provide a vehicle by which SERC engages reliability expertise through active participation of industry volunteers.
Upcoming Events
What You Can Do
Improve renewable generation forecasts and incorporate them into planning
Collaborate with balancing authorities and system operators on coordination strategies.
Stay involved in SERC’s working groups on variable generation integration.
Resource Downloads
Renewables Integration and New Technologies
Renewables Integration and New Technologies
Based on the 2023-2033 SERC Annual Long-Term Reliability Assessment Report, the existing total internal generation capacity for the SERC Region is 309.6 GW (323.1 GW winter capacity).
2024-2034 Long Term Relilibity Assessment
RM10-11-001 Integration of Variable Energy Resources
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