ML19270D575
| ML19270D575 | |
| Person / Time | |
|---|---|
| Issue date: | 09/25/2019 |
| From: | NRC/OCM |
| To: | |
| Shared Package | |
| ML19270D537 | List: |
| References | |
| M190925 | |
| Download: ML19270D575 (18) | |
Text
NERC NORTH AMERICAN ELECTRIC RELIABILITY CORPORATION
- High Reliability in 2018, No Non-Weather Category 3, 4, or 5 events
- Hurricane Michael and Florence Category 3
- Extreme weather events continue to be leading contributor to the largest generation and distribution outages
- Better than expected performance from Texas generation fleet helped meet 2018 summer peak demand; reliability risk in 2019 due to continued capacity deficit
- Continued downward misoperation rate trend
- Improving or stable frequency response performance in all interconnections
- Emerging reliability challenges identified as more inverter-based generation is added 2 RELIABILITY I ACCOUNTABILITY
2018 Actual Energy 99.92°/o Time with no epe1ator,-c:011bolled The ERO Enterpri~ : NERC and 7 Regional Entities 1,028,629 MW load shedding 2018 Sc.mmer Pea~ Capacity t!!ES......rn~ ~ -
- 469,842 mi Total Transmission Circuit MIies > 100W 0 TEXAS RE ~ WECC Category 3, 4. or 5 Events (non-weather1'81ated) 15 Reliability Coordinators 4 Interconnections 5,816 Number of Conuentlonal C..181atlng Units >20MW 184 Transmission Operators 991 Generator Owners 73 Balancing Authorities 398 Distribution Providers Bui~ Power System Situation Awareness Inputs and Products in 2018 ---
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2014 2015 2016 2017 2018
- Category 1
- Category 2 Category 3
- Category 4
- Category 5 Category 3
- Design/Engineering
- Management/Organization
- Equipment/Material Category 4
- Training
- Other
- Individual Performance
- Communication Category s 4 RELIABILITY I ACCOUNTABILITY
2014-2018 Event Analysis Trends
- Management/ Organizat ion
- Design/ Engineering 856 Event Reports
- Equipment/Material
- Other
- Communication
- Individual Perfo rmance 378 Identified Root Causes
- Tra ining
- No Causes Found
- Overall Configuration 1%
116 MW 2014-2018 Identified Root Causes Overall (Five-Year) Average Load Loss of (Processed to-date)
Non-Weather Driven Events with Load Loss Number of N on-Weather Events with Tota l Category 1 Events by Year and Load Loss and Annual Average Load Loss Subcategory 40 300 200
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- Total ~ Annual Average Load Loss (MW) s
6 RELIABILITY I ACCOUNTABILITY NERC Reliability Indicator - Transmission NORTH AMERICAN ELECTRIC RELIAGILITY CORPORATION Related Events Results in Loss of Load 20 350 -0 300 ..,
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- Count of Events -e- Average of Demand Interrupted (MW) Firm 7 RELIABILITY I ACCOUNTABILITY
NERC Reliability Indicator - Protection System NORTH AMERICAN ELECTRIC RELIABILITY CORPORATION M*isoperat*ion Rate 14% 13.29%
12.0%
12%
10.0%
10%
8.0%
8%
6.0%
6%
4.0%
4%
2.0%
2%
0.0%
Q4 2013 - Q3 Q4 2014 - Q3 Q4 2015 - Q3 Q4 2016 - Q3 Q4 2017 - Q3 2014 2015 2016 2017 2018 0%
FRCC MRO NPCC RF SERC Texas RE WECC Annual Protection System Five-Year Protection System Misoperation Rate Misoperation Rate by Region Q4 2013 through Q3 2018 8 RELIABILITY I ACCOUNTABILITY
Tranmission Loss 30%
Load Loss 60%
Generation Loss 10%
9 RELIABILITY I ACCOUNTABILITY
100
. Ten Highest Stress Days with 2018 marked
~/2 Winter Storm
- 9/.14 Hurricane Florence 11/15 Winter Storm I
10 116 5 II)
- 1/2 Severe Cold Weather
- xtU
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V, 1
- 2012 - 2014 - 2015 - 2016 2017 -2018 0.1 Descending day of the year 10 RELIABILITY I ACCOUNTABILITY
NERC Severity Risk Index (SRI) -
NORTH AMERICAN ELECTRIC RELIAB I LITY CORPORAT I ON Cumulative 750 2012 700 650 600 550 500 VI c..
450
..0 ex::
400 V1 Q) 350
-~
+"' 300 ro 250 E
u 200 150 100 so 0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
- 2012 - 2014 - 2015 - 2016 - 2017 2018 11 RELIABILITY I ACCOUNTABILITY
NERC BPS Planning and Adapting to a NORTH AMERICAN ELECTRIC RELIABILITY CORPORATION Changing Resource Mix NERCAlert 1
- Concerns with Susceptible to Erroneous Inverter cease output during i nve rte r-ba sed Frequency Calculations? abnormal voltages?
resource persist and mitigation strategies
- Yti a No a YES
- NERC Alert helped Use Momentary 1.8GW Cannot be fully mitigated inform industry of the Total BPS Solar Cessation Can be mitigated vu Inera bi lities through settings change associated with I Can be fully momentary cessation. 3.9 GW 5.2 GW mitigated Dontt Use Momentary Cessation 12 RELIABILITY I ACCOUNTABILITY
1 - Continue improving their ability to understand, model, and plan for a system with a significantly different resource mix. Priority should be given to:
Frequency response under low inertia conditions Contributions of inverter-based resources to essential reliability services 11 Increasing protection system and restoration complexities with increased inverter-based resources Resource adequacy with increasing energy constraints 2 - Develop comparative metrics to understand the different dimensions of resilience during extreme events and system performance changes over time.
3 - Better understand and share information on cyber and physical security threats and mitigate the risks through a variety of approaches, including resilient system design, consequence-informed planning and operation, and practicing response and recovery processes.
13 RELIABILITY I ACCOUNTABILITY
NERC NORTH AMERICAN ELECTRIC RELIABILITY CORPORATION
- May 2019: NERC launched a Task Force to identify reliability concerns associated with EMPs and potential methods for promoting resilience
- The Task Force advises NERC, regulators, Regional Entities, and industry stakeholders to establish a common understanding of the scope, priority, and goals for the development of next-steps to address resilience to HEMP events 15 RELIABILITY I ACCOUNTABILITY
Strategic Recommendations Technical Committee Work Standard Drafting Team (if applicable)
Phase 3 16 RELIABILITY I ACCOUNTABILITY
- The Task Force has broken up the topic of EMP as it relates to the utility industry in the following categories:
- Policy- What needs to be clearly defined by industry and federal government
- Research - What research is needed to prudently inform utilities that need to make decisions
- Vulnerability Assessments - How does the utility industry take the policy and research to understand its vulnerability
- Mitigation Guidelines - Fundamental suggestions and guidelines on prudent mitigation strategies
- Response and Recovery- Based on the vulnerability assessments and any mitigation guidelines, for any impacted facilities, how does a utility respond and recover 17 RELIABILITY I ACCOUNTABILITY
wers 18 RELIABILITY I ACCOUNTABILITY