Transcript TVA RC Power System Restoration Drill

TVA Reliability Coordinator
LG&E/KU ITO Spring Stakeholder Meeting
Terry Williams and Jonathan Prater
Tennessee Valley Authority
07/21/16
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Talking Points
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TVA TOPS/RC Org Changes
RC Power System Restoration Drill
TVA Generation Update
Summer and Fall Weather Outlook
MISO Dispatch Transfer Performance
IDC Updates
VAR Management System Expansion
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TVA RC Organizational Changes
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TVA RC Organizational Changes
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TVA RC Power System Restoration Drill
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TVA RC Power System Restoration Drill
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TVA RC Power System Restoration Drill
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TVA Generation Updates (Fossil to Gas)
Retired
• Paradise 1-2 FP (~1200 MW)
• Allen FP (~750 MW)
New
• Paradise 3x1 CC (~1200 MW)
• Allen 2x1 CC (~1100 MW)
Jan. 2016
Jan. 2017
HAPs-MACT (EPA)
One year
extension deadline
(4/15/2016)
Jan. 2018
HAPs-MACT (EPA)
Two year
extension deadline
(4/15/2017)
ISD 12/2018
ISD 12/2017
ISD 6/2017
ISD 4/2016
** Replaced by onsite gas generation
Jan. 2019
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TVA Generation Updates (New Nuclear)
Watts Bar Unit 2
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First new nuclear unit of the 21st Century (1150 MW)
Gen sync – June 3, 2016
Power ascension testing in progress
Expected commercial operation – August 21, 2016
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Balance of Summer Outlook
Weather
• August
– Hotter than 2015, 10-year, and 30-year (above normal from Great Lakes to Mid-Atlantic)
• September
– Hot start (summer in Texas and Mid-Atlantic)
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Fall Outlook
Weather
• October
– Weak La Niña supports warmth in East
• November
– East to West temperature swap (colder November)
– Lower confidence in autumn forecast
* Weather information from Commodity Weather Group, LLC
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MISO Dispatch Transfer UDS Performance
Since June 1, normal trend of
South to North has mostly
changed to North to South.
A few excursions (one on
6/17 - emergency due to
nuclear unit trip).
Congestion seen in SMEPA
area and LGE-KU/BREC/TVA
area recently due to the
Dispatch Transfer.
Not a significant increase in
TLR activity.
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IDC Updates
• Change Order #384 implementation in the next couple of months
• Real-time generation values will be used in NNL calculations
• IDC currently uses generator Pmax value for NNL calculations
(accounting for outages and derates)
• TVA submitting data for all RC partners
• If generator data is missing, IDC will revert back to using Pmax
• Market flows are not impacted by the change. Will continue to be
calculated by each market
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VAR Management System Expansion
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5 LGE-KU regions created
Currently testing on Development system (tweaking contingencies and verifying data)
Input welcome on region definitions and buses monitored for average voltage in region
Once data is validated, RC operators will be trained and changes pushed to Production
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