Transcript Slide 1

Pump Storage:
A System Operations Perspective
Pump Storage: A System Operations Perspective
 Sam Holeman
 Power System Engineer
 25 years at Duke Energy
 7 yrs - Energy Management System Development
 Generation Resource Commitment logic
 Generation Economic Dispatch logic
 Power Flow logic
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18 yrs – Bulk Electric System Operations
NERC Certified System Operator-Reliability
0 yrs – Pump Storage Asset Operations
0 yrs – Pump Storage Asset Main
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In Light of This….The New Title is……
Pump Storage: The Duct Tape of System Operations
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Duke Energy Carolinas Generation Mix
 These are approximations
 Total Generation Capability – 21,000 MWs
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Nuclear – 7000 MWs
Fossil (Coal) – 7600 MWs
Combustion Turbines – 3100 MWs
Conventional Hydro – 1100 MWs
Pump Storage Hydro – 2000 MWs
 Pump Storage Hydro (MWs) – approx. 9.5% of capacity
 Pump Storage Generation (MWhrs) – approx. 2.5% of energy generated
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From the view of System Operations……
Bad Creek Pumped-Storage Generating Station
Capacity: 1,065 megawatts
Location: Oconee County, South Carolina
Commercial Date: 1991
Jocassee Pumped-Storage Generating Station
Capacity: 610 megawatts
Location: Pickens County, South Carolina
Commercial Date: 1973
Numbers don’t tell the story of the value of
Pump Storage!
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The Pump Storage System Operations Story
 NERC Interconnected Operations Services
 Operating Reserves
 Regulating Reserves/Load Following
 Contingency Reserves
 Reactive Power Supply
 Frequency Response
 From the eyes of System Operations
 Dependable
 Flexible
 Fast/
 Nimble
 Our Duct Tape
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0:00
0:28
0:56
1:24
1:52
2:20
2:48
3:16
3:44
4:12
4:40
5:08
5:36
6:04
6:32
7:00
7:28
7:56
8:24
8:52
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9:48
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12:36
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14:28
14:56
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18:40
19:08
19:36
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20:32
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21:28
21:56
22:24
22:52
23:20
23:48
Megawatts
2000
1000
500
10000
0
-500
-1500
Bad Creek
Jocassee
Load
8000
6000
4000
-1000
2000
0
Megawatts
Operating Reserves/Load Following/Regulating Reserves
20000
18000
1500
16000
14000
12000
11:45
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Megawatts
Contingency Reserves/Emergency Response
800
600
400
200
0
-200
-400
-600
Emergency Energy Request - 500 MW
Bad Creek
Jocassee
ACE
8:00
8:01
8:02
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8:40
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8:42
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8:44
8:45
Megawatts
1200
800
400
0
-600
-1000
-1400
Bad Creek
Jocassee
ACE
Freq
60
-200
-400
59.98
-800
59.96
-1200
59.94
Frequency
The Real Time Whole Ball of Wax – Pump Storage At Its Best
60.06
1000
60.04
600
60.02
200