ML22084A401
| ML22084A401 | |
| Person / Time | |
|---|---|
| Issue date: | 03/31/2022 |
| From: | NRC/OCM |
| To: | |
| Shared Package | |
| ML22039A263 | List: |
| References | |
| Download: ML22084A401 (10) | |
Text
RELIABILITY l RESILIENCE l SECURITY Bulk Power System Reliability Key Findings from NERCs State of Reliability and Long-Term Reliability Assessment Howard Gugel, Vice President, Engineering and Standards Joint Meeting of the Federal Energy Regulatory Commission and the Nuclear Regulatory Commission March 31, 2022
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2021 State of Reliability Report:
2020 Operating Year
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Hours Without Operator-Initiated Firm Load Shed (%/year)
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Reliability Indicators:
Transmission Outages Protection System Human Error AC Substation Equipment
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Resilience Metric Example:
Transmission Outage Restoration
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Long-Term: Some Areas Are Showing Signs of Anticipated Shortfalls
- Resource Adequacy and Energy Sufficiency MISO, California, and Ontario l projecting capacity shortfalls California, U.S. Northwest and Southwest l projecting periods of insufficient energy
- Extreme Weather Risks Texas, California, and U.S.
Northwest l Insufficient flexible generation for peak demand New England, California, and Southwest l Natural gas infrastructure limitations Long-Term Reliability Assessment Risk Map 2022 - 2026
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Changing Resource Mix
- ERO priorities for reducing risks during grid transformation Improve BES resilience for wide area long-duration extreme temperatures Focus on energy sufficiency Enhance suite of reliability standards: cyber, cold weather, energy sufficiency, and inverter performance
- Future resource mix will be more variable and less fuel-diverse Solar Natural Gas Wind Battery 2021 Capacity at Peak Demand Type Capacity (GW)
Contribution %
Natural Gas 467 47%
Coal 220 22%
Nuclear 108 11%
Solar and Wind 60 6%
All others 136 14%
Contributions at hour of peak demand. Variable energy resource (solar, wind, and some hydro) typically count less than installed nameplate capacity.
BPS Resources in Planning
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Distributed Energy Resources
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Energy Reliability Assessment Task Force Problem Statement:
- Unassured fuel supplies can result in insufficient amounts of energy on the system to serve electrical demand and ensure the reliable operation of the bulk power system due to:
variable renewable energy resources fuel location volatility in forecasted load This is described in the Ensuring Energy Adequacy with Energy Constrained Resources (Dec 2020) white paper
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