| Table B.2. Major Disturbances and Unusual Occurrences, Year-to-Date through December 2010 |
|
|
|
|
|
|
|
| Date |
Utility/Power Pool (NERC Region) |
Time |
Area Affected |
Type of Disturbance |
Loss (megawatts) |
Number of Customers Affected 1 |
Restoration |
| January |
|
|
|
|
|
|
|
| 1/6/2010 |
Southwest Louisiana Electric Membership Corporation (SERC) |
6:00 p.m. |
Southwest Louisiana |
Made Public Appeals |
N/A |
N/A |
6:00 p.m. January 08 |
| 1/11/2010 |
Progress Energy Florida (FRCC/SERC) |
3:45 a.m. |
Northern and Central Florida |
Interruptible Load Shed/Made Public Appeals |
N/A |
N/A |
9:57 a.m. January 11 |
| 1/18/2010 |
Pacific Gas and Electric Company (WECC) |
11:30 a.m. |
Northern and Central California |
Severe Storm |
290 |
1,700,000 |
8:00 a.m. January 28 |
| 1/19/2010 |
California ISO (WECC) |
7:30 a.m. |
San Francisco |
Severe Storm |
300 |
30,000 |
12:24 p.m. January 19 |
| 1/19/2010 |
San Diego Gas & Electric Company (WECC) |
2:30 p.m. |
San Diego and Orange Counties |
Severe Storm |
2,650 |
50,000 |
3:00 p.m. January 20 |
| 1/20/2010 |
Los Angeles Department of Water and Power (WECC) |
1:00 p.m. |
City of Los Angeles, California |
Severe Storm |
N/A |
147,223 |
6:10 p.m. January 24 |
| 1/28/2010 |
American Electric Power (SPP) |
12:00 p.m. |
Oklahoma |
Ice Storm |
N/A |
68,705 |
12:00 p.m. February 02 |
| February |
|
|
|
|
|
|
|
| 2/1/2010 |
Western Farmers Electric Cooperative (SPP) |
2:32 p.m. |
Oklahoma |
Ice Storm/Electrical System Separation |
30 |
0 |
5:00 p.m. February 01 |
| 2/5/2010 |
Atlantic City Electric (RFC) |
3:00 p.m. |
Southern NJ |
Winter Storm |
N/A |
221,000 |
4:00 p.m. February 13 |
| 2/5/2010 |
Duke Energy Carolinas (SERC) |
6:48 p.m. |
North and South Carolina |
Winter Storm |
500 |
74,000 |
5:00 p.m. February 07 |
| 2/5/2010 |
Potomac Electric Power Co (RFC) |
7:00 p.m. |
District of Columbia, Prince Georges and Montgomery Co. MD |
Winter Storm |
N/A |
97,651 |
3:46 p.m. February 12 |
| 2/5/2010 |
Duquesne Light Company (RFC) |
10:30 p.m. |
Southwestern Pennsylvania |
Winter Storm |
N/A |
57,000 |
12:00 p.m. February 12 |
| 2/5/2010 |
American Electric Power (RFC) |
11:30 p.m. |
Indiana, Ohio, W. Virginia and Virginia |
Winter Storm |
N/A |
102,225 |
2:38 a.m. February 07 |
| 2/6/2010 |
Dominion (SERC) |
2:30 a.m. |
Virginia, North Carolina |
Winter Storm |
600 |
104,736 |
7:00 a.m. February 07 |
| 2/6/2010 |
Delmarva Power & Light Company (RFC) |
8:00 a.m. |
Delmarva Peninsula |
Winter Storm |
N/A |
58,491 |
9:00 a.m. February 06 |
| 2/9/2010 |
Exelon Corporation (RFC) |
6:00 p.m. |
Southeastern Pennsylvania |
Winter Storm |
N/A |
223,000 |
4:00 p.m. February 14 |
| 2/11/2010 |
Oncor Electric Delivery Company (TRE) |
12:00 p.m. |
Dallas/Fort Worth and East Texas |
Winter Storm |
N/A |
500,000 |
9:00 p.m. February 15 |
| 2/12/2010 |
American Electric Power (SPP) |
5:00 a.m. |
East Texas, Western Arkansas, Northern Lousiania |
Winter Storm |
N/A |
52,999 |
5:00 p.m. February 12 |
| 2/14/2010 |
Allegheny Power (RFC) |
10:00 a.m. |
Western Pennsylvania nd Northeast Central WV |
Winter Storm |
900 |
190,000 |
12:00 p.m. February 14 |
| 2/19/2010 |
California Department of Water Resources (WECC) |
8:30 p.m. |
San Joaquin Field Division/Bakersfield, CA |
Firm System Load Shed |
1,000 |
N/A |
4:01 a.m. February 20 |
| 2/23/2010 |
Central Hudson Gas & Electric Corp (NPCC) |
10:00 p.m. |
Upstate New York |
Winter Storm |
N/A |
150,000 |
4:00 p.m. February 25 |
| 2/25/2010 |
Orange and Rockland Utilities Inc |
12:01 a.m. |
Southeastern New York, Northern New Jersey |
Winter Storm |
N/A |
65,000 |
9:00 p.m. February 26 |
| 2/25/2010 |
Consolidated Edison of NY (NPCC) |
5:00 p.m. |
New York City |
Winter Storm |
N/A |
55,000 |
7:00 p.m. March 02 |
| 2/25/2010 |
ISO New England (NPCC) |
11:53 p.m. |
Southern Maine and New Hampshire |
Winter Storm |
510 |
509,606 |
4:40 p.m. March 01 |
| March |
|
|
|
|
|
|
|
| 3/13/2010 |
Exelon Corporation/PECO (RFC) |
1:00 a.m. |
Southeasten Pennsylvania |
High Winds and rain |
N/A |
177,528 |
6:40 p.m. March 16 |
| 3/13/2010 |
ISO New England (NPCC) |
12:00 p.m. |
Connecticut |
High Winds and Rain |
50 |
50,246 |
8:05 p.m. March 15 |
| 3/13/2010 |
Long Island Power Authority (NPCC) |
3:00 p.m. |
Long Island |
High Winds and Rain |
N/A |
153,000 |
4:00 p.m. March 17 |
| 3/13/2010 |
Jersey Central Power and Light Company (RFC) |
4:00 p.m. |
Central New Jersey and Northern New Jersey |
High Winds and Flooding |
N/A |
180,000 |
12:00 a.m. March 16 |
| 3/13/2010 |
Public Service Electric & Gas Company (RFC) |
6:00 p.m. |
Southern, Central and Northern New Jersey |
High Winds and Rain |
100 |
360,000 |
12:59 p.m. March 20 |
| 3/13/2010 |
Consolidated Edison of NY (NPCC) |
6:00 p.m. |
New York City and Westchester County |
High Winds and Rain |
N/A |
173,000 |
9:00 a.m. March 20 |
| 3/31/2010 |
San Diego Gas & Electric Company (WECC) |
11:59 p.m. |
San Diego and Orange Counties |
Shed Firm Load |
324 |
290,000 |
12:55 a.m. April 01 |
| 3/31/2010 |
California Independent System Operator (WECC) |
11:59 p.m. |
San Diego |
Shed Firm Load |
324 |
N/A |
12:38 a.m. April 01 |
| April |
|
|
|
|
|
|
|
| 4/16/2010 |
Allegheny Power (RFC) |
5:15 p.m. |
Southwestern Pennsylvania |
Severe Thunderstorms |
15 |
120,000 |
5:00 p.m. April 18 |
| Table B.2. Major Disturbances and Unusual Occurrences, Year-to-Date through December 2010 |
|
|
|
|
|
|
|
| Date |
Utility/Power Pool (NERC Region) |
Time |
Area Affected |
Type of Disturbance |
Loss (megawatts) |
Number of Customers Affected 1 |
Restoration |
| 4/21/2010 |
Dow Chemical Co (SERC) |
3:05 p.m. |
Iberville, Parish, Louisiana |
Generator Tripped |
N/A |
N/A |
8:00 p.m. April 21 |
| 4/27/2010 |
North Carolina Eastern Municipal Power Agency (SERC) |
2:55 p.m. |
Rocky Mount, NC |
Transmission System Interruption |
N/A |
29,376 |
2:55 p.m. April 27 |
| May |
|
|
|
|
|
|
|
| 5/2/2010 |
Tennesse Valley Authority (SERC) |
2:40 p.m. |
Tennessee and Mississippi |
Thunderstorms |
N/A |
50,500 |
7:30 p.m. May 09 |
| 5/18/2010 |
California Department of Water Resources (WECC) |
8:15 a.m. |
Central California |
Breakers Tripped |
318 |
N/A |
10:46 p.m. May 18 |
| 5/26/2010 |
Allegheny Power (RFC, SERC) |
11:45 a.m. |
Maryland, Pennsylvania, West Virginia, Virginia |
Made Public Appeal - System Drill |
N/A |
N/A |
3:00 p.m. May 26 |
| June |
|
|
|
|
|
|
|
| 6/1/2010 |
Southern Indiana Gas and Electric Company (RFC) |
10:03 p.m. |
Southwestern Indiana |
Firm Load Shed |
500 |
1 |
12:30 a.m. June 18 |
| 6/2/2010 |
CPS Energy (TRE) |
8:18 p.m. |
San Antonio, TX |
Severe Weather |
N/A |
126,000 |
8:00 a.m. June 04 |
| 6/6/2010 |
Pacific Gas and Electric (WECC) |
4:45 a.m. |
Northern California |
Electric System Separation |
3 |
2,650 |
5:35 a.m. June 06 |
| 6/7/2010 |
Public Service Company of Colorado (WECC) |
6:29 p.m. |
Denver Metropolitan Area |
Firm Load Shed |
300 |
31,000 |
1:00 a.m. June 08 |
| 6/8/2010 |
Centerpoint Energy (TRE) |
11:00 a.m. |
Southeastern Texas |
Thunderstorms |
N/A |
79,741 |
5:00 p.m. June 08 |
| 6/9/2010 |
North Carolina Eastern Municipal Power Agency (SERC) |
2:18 p.m. |
Edenton, NC |
Transmission System Interruption |
N/A |
4,196 |
3:00 p.m. June 09 |
| 6/16/2010 |
Orange and Rockland Utilities (NPCC) |
11:11 a.m. |
New York (Rockland and Orange Counties) |
Voltage Reduction (System Test) |
N/A |
N/A |
11:32 a.m. June 16 |
| 6/17/2010 |
Louisiana Energy and Power Authority (SPP) |
8:30 a.m. |
Morgan City, LA |
Made Public Appeal |
N/A |
N/A |
5:47 p.m. June 17 |
| 6/17/2010 |
Entergy (SERC) |
9:30 a.m. |
Southern Louisiana |
Made Public Appeal |
N/A |
N/A |
5:17 p.m. June 17 |
| 6/17/2010 |
Cleco Power LLC (SERC) |
9:30 a.m. |
Southern Louisiana |
Made Public Appeal |
N/A |
N/A |
4:40 p.m. June 17 |
| 6/17/2010 |
Southwest Louisiana Electric Membership Corporation (SPP) |
9:30 a.m. |
Southwestern Louisiana |
Made Public Appeal |
N/A |
N/A |
4:40 p.m. June 17 |
| 6/17/2010 |
Western Area Power Administration (MRO) |
10:49 a.m. |
Eastern Montana |
Electrical System Separation |
N/A |
N/A |
11:02 a.m. June 17 |
| 6/18/2010 |
Northern Indiana Public Service Company (RFC) |
3:30 p.m. |
Northwest Indiana |
Thunderstorms |
N/A |
94,345 |
12:30 a.m. June 20 |
| 6/18/2010 |
Commonwealth Edison (RFC) |
4:00 p.m. |
Chicago, IL |
Severe Weather |
N/A |
400,000 |
1:00 p.m. June 20 |
| 6/18/2010 |
Consumers Energy (RFC) |
7:00 p.m. |
Southern Portion of Lower Michigan |
Thunderstorms |
N/A |
100,000 |
5:00 a.m. June 19 |
| 6/18/2010 |
American Electric Power (RFC) |
8:00 p.m. |
Indiana, Michigan |
Severe Weather |
N/A |
79,000 |
10:45 a.m. June 21 |
| 6/18/2010 |
Detroit Edison (RFC) |
8:00 p.m. |
Detroit, MI |
Severe Weather |
N/A |
150,000 |
7:30 p.m. June 22 |
| 6/21/2010 |
Duke Energy Midwest (RFC) |
1:48 p.m. |
Cincinnati, OH |
Thunderstorms |
400 |
50,636 |
8:31 p.m. June 22 |
| 6/22/2010 |
Entergy (SERC) |
3:34 p.m. |
West/Central Arkansas |
Made Public Appeal/Transmission Equipment Failure |
84 |
25,159 |
7:00 p.m. June 22 |
| 6/23/2010 |
Commonwealth Edison (RFC) |
5:00 p.m. |
Chicago, IL |
Severe Weather |
N/A |
300,000 |
1:40 p.m. June 25 |
| 6/23/2010 |
Northern Indiana Public Service Company (RFC) |
5:48 p.m. |
Northwest Indiana |
Thunderstorms |
N/A |
53,000 |
2:21 a.m. June 24 |
| 6/24/2010 |
Atlantic City Electric (RFC) |
3:00 p.m. |
Southwestern New Jersey |
Thunderstorms |
N/A |
150,000 |
12:00 p.m. June 29 |
| 6/24/2010 |
PECO (RFC) |
3:30 p.m. |
Southeastern Pennsylvania |
Thunderstorms |
N/A |
355,000 |
11:59 p.m. June 29 |
| 6/25/2010 |
Pacific Gas and Electric (WECC) |
11:36 p.m. |
Northern California |
Electrical System Separation |
N/A |
N/A |
1:38 a.m. June 26 |
| July |
|
|
|
|
|
|
|
| 7/6/2010 |
Delmarva Power & Light Company (RFC) |
3:47 a.m. |
Newark, DE |
Transformer Outage |
95 |
18,400 |
4:37 a.m. July 06 |
| 7/7/2010 |
PJM Interconnection, LLC (RFC) |
4:13 p.m. |
York, South Central Pennsylvania |
Loss of Transmission Equipment |
N/A |
43,903 |
10:29 p.m. July 07 |
| 7/15/2010 |
Detroit Edison (RFC) |
7:00 p.m. |
Southeastern Michigan |
Severe Weather |
540 |
127,534 |
11:30 p.m. July 19 |
| 7/17/2010 |
Xcel Energy (MRO) |
8:30 p.m. |
Minnesota |
Strong Winds, Tornadoes |
N/A |
63,000 |
10:00 p.m. July 19 |
| 7/21/2010 |
ISO New England (NPCC) |
6:44 p.m. |
Connecticut |
Thunderstorms |
N/A |
50,100 |
8:00 p.m. July 21 |
| 7/23/2010 |
Pacificorp (WECC) |
10:00 a.m. |
Northern Utah |
Made Public Appeals |
8-Jun |
N/A |
11:55 p.m. July 24 |
| 7/23/2010 |
Detroit Edison (RFC) |
7:30 p.m. |
Southeastern Michigan |
Severe Weather |
400 |
82,000 |
6:30 p.m. July 26 |
| Table B.2. Major Disturbances and Unusual Occurrences, Year-to-Date through December 2010 |
|
|
|
|
|
|
|
| Date |
Utility/Power Pool (NERC Region) |
Time |
Area Affected |
Type of Disturbance |
Loss (megawatts) |
Number of Customers Affected 1 |
Restoration |
| 7/25/2010 |
Potomac Electric Power Co (RFC) |
3:10 p.m. |
Washington, DC Region |
Severe Weather |
N/A |
297,700 |
11:30 p.m. July 30 |
| 7/25/2010 |
Baltimore Gas and Electric (RFC) |
3:20 p.m. |
Central Maryland |
Severe Weather |
480 |
124,000 |
6:00 p.m. July 27 |
| 7/25/2010 |
Dominion - Virginia Power (SERC) |
4:11 p.m. |
Northern Virginia |
Severe Weather |
900-1000 |
81,000 |
8:06 p.m. July 25 |
| 7/29/2010 |
Dominion - Virginia Power (SERC) |
5:43 p.m. |
Virginia |
Thunderstorms |
N/A |
55,000 |
8:07 p.m. July 29 |
| 7/29/2010 |
Southern California Edison Company (WECC) |
6:39 p.m. |
Southern California |
Shed Interruptible Load, Wildfire |
522 |
N/A |
7:26 p.m. July 29 |
| 7/29/2010 |
California Independent System Operator (WECC) |
6:39 p.m. |
Southern California |
Shed Interruptible Load, Wildfire |
522 |
N/A |
7:26 p.m. July 29 |
| August |
|
|
|
|
|
|
|
| 8/2/2010 |
California Department of Waters Resources (WECC) |
12:00 p.m. |
Central California |
Fuel Supply Deficiency (Hydro) |
N/A |
N/A |
11:00 p.m. August 02 |
| 8/2/2010 |
Cleco Power LLC (SERC) |
12:45 p.m. |
Southern Louisiana |
Made Public Appeals |
N/A |
N/A |
11:00 a.m. August 04 |
| 8/2/2010 |
Entergy (SERC) |
12:45 p.m. |
Southern Louisiana |
Made Public Appeals |
N/A |
N/A |
11:00 a.m. August 04 |
| 8/2/2010 |
Southwest Louisiana Electric Membership Corporation (SERC) |
12:45 p.m. |
Southwestern Louisiana |
Made Public Appeals |
N/A |
N/A |
11:00 a.m. August 04 |
| 8/2/2010 |
Lafayette Utilities Systems (SPP) |
12:45 p.m. |
Southern Louisiana |
Made Public Appeals |
N/A |
N/A |
11:00 a.m. August 04 |
| 8/4/2010 |
Southwestern Public Service Company (SPP) |
12:00 p.m. |
Northern Texas, Eastern New Mexico |
Made Public Appeals |
N/A |
N/A |
10:00 p.m. August 04 |
| 8/4/2010 |
Allegheny Power (RFC) |
4:45 p.m. |
Western Pennsylvania, Northwestern and Central West Virginia |
Thunderstorms |
60 |
11,186 |
12:00 a.m. August 07 |
| 8/4/2010 |
American Electric Power (RFC) |
5:00 p.m. |
Ohio, West Virginia, Kentucky |
Severe Weather |
N/A |
37,000 |
4:00 a.m. August 06 |
| 8/5/2010 |
Potomac Electric Power Co (RFC) |
3:30 p.m. |
District of Columbia, Maryland |
Thunderstorms |
N/A |
76,729 |
10:00 p.m. August 05 |
| 8/5/2010 |
Dominion - Virginia Power (RFC) |
3:54 p.m. |
Northern Virginia |
Thunderstorms |
N/A |
145,157 |
12:00 a.m. August 08 |
| 8/9/2010 |
AES Greenidge and Cayuga0RFC) |
12:00 p.m. |
Upstate New York |
Fuel Supply Defiency |
N/A |
N/A |
12:00 p.m. August 16 |
| 8/11/2010 |
American Electric Power (RFC) |
3:21 p.m. |
Ohio |
Severe Weather |
N/A |
57,000 |
12:12 p.m. August 11 |
| 8/12/2010 |
Potomac Electric Power Co. (RFC) |
6:45 a.m. |
District of Columbia, Maryland |
Severe Weather |
N/A |
101,003 |
9:00 p.m. August 12 |
| 8/12/2010 |
Nebraska Public Power District (SPP) |
8:21 a.m. |
Central Nebraska |
Made Public Appeals |
65 |
N/A |
11:00 a.m. August 12 |
| 8/12/2010 |
Wisconsin Public Service (MRO) |
3:42 p.m. |
City of Oshkosh, Wisconsin |
Made Public Appeals |
30 |
7,600 |
10:10 p.m. August 12 |
| 8/19/2010 |
Detroit Edison (RFC) |
6:00 p.m. |
Southeastern Michigan |
Severe Weather |
340 |
80,000 |
3:30 p.m. August 23 |
| 8/23/2010 |
CenterPoint Energy (TRE) |
5:50 p.m. |
Houston, Texas |
Severe Weather |
746 |
81,586 |
9:30 a.m. August 24 |
| September |
|
|
|
|
|
|
|
| 9/1/2010 |
Pacific Gas and Electric (WECC) |
10:20 a.m. |
Pittsburg (Bay Area), California |
Electrical System Separation (Islanding) |
31 |
15,000 |
12:44 p.m. September 01 |
| 9/7/2010 |
CPS Energy (TRE) |
2:02 p.m. |
San Antonio, Texas |
Tropical Storm |
N/A |
340,350 |
1:27 a.m. September 08 |
| 9/20/2010 |
Birchwood Power Facility (SERC) |
5:00 p.m. |
King George County, Virginia |
Low Flying Helicopter |
N/A |
N/A |
5:30 p.m. September 20 |
| 9/21/2010 |
Consumers Energy (RFC) |
9:31 p.m. |
Central and Southern Michigan |
Thunderstorms |
N/A |
138,000 |
2:30 p.m. September 22 |
| 9/22/2010 |
California Department of Water Resources (WECC) |
6:12 a.m. |
Bakersfield, California |
Firm Load Shed |
526 |
N/A |
11:00 p.m. September 22 |
| 9/22/2010 |
Duquesne Light Company (RFC) |
4:08 p.m. |
City of Pittsburgh, Pennsylvania |
Thunderstorms |
156 |
52,000 |
12:00 a.m. September 26 |
| 9/22/2010 |
Allegheny Power (RFC) |
5:38 p.m. |
Western Pennsylvania |
Thunderstorms |
389 |
82,861 |
11:30 p.m. September 24 |
| 9/27/2010 |
Southern California Edison Company (WECC) |
3:15 p.m. |
Central and Southern California |
Interruptible Load Shed |
595 |
N/A |
6:12 p.m. September 27 |
| October |
|
|
|
|
|
|
|
| 10/5/2010 |
Los Angeles Department of Water and Power (WECC) |
5:45 a.m. |
City of Los Angeles, California |
Rain and High Winds |
N/A |
73,514 |
6:00a.m. October 07 |
| 10/26/2010 |
Commonwealth Edison (RFC) |
9:00 a.m. |
Northern Illinois |
Thunderstorms |
N/A |
192,106 |
11:00 a.m. October 28 |
| 10/26/2010 |
Xcel Energy/Northern States Power Company (MRO) |
8:00 p.m. |
Minnesota |
High Winds |
N/A |
70,000 |
10:00 p.m. October 28 |
| 10/27/2010 |
Wisconsin Public Service Corporation (MRO) |
4:00 a.m. |
Northeast and North Central Wisconsin |
High Winds |
N/A |
63,000 |
12:00 p.m. October 27 |
| Table B.2. Major Disturbances and Unusual Occurrences, Year-to-Date through December 2010 |
|
|
|
|
|
|
|
| Date |
Utility/Power Pool (NERC Region) |
Time |
Area Affected |
Type of Disturbance |
Loss (megawatts) |
Number of Customers Affected [1] |
Restoration |
| 10/27/2010 |
Consumers Energy (RFC) |
8:00 a.m. |
Michigan's Northerly Lower Peninsula |
High Winds |
240 |
285,000 |
7:00 a.m. October 29 |
| 10/27/2010 |
Commonwealth Edison (RFC) |
5:00 p.m. |
Northern Illinois |
High Winds |
N/A |
127,000 |
4:00 a.m. October 29 |
| 10/27/2010 |
Pacific Gas and Electric (WECC) |
5:16 p.m. |
Northern California |
Electrical System Separation-Islanding |
16 |
2,674 |
5:27 p.m. October 27 |
| 10/31/2010 |
California Department of Water Resources (WECC) |
10:26 p.m. |
Bakersfield, California |
Firm System Load Loss |
500 |
N/A |
1:45 a.m. November 01 |
| November |
|
|
|
|
|
|
|
| 11/4/2010 |
PacifiCorp (WECC) |
9:46 a.m. |
Rock Springs, Wyoming |
Transmission Equipment Failure/Interruptible Load Shed |
N/A |
N/A |
10:47 a.m. November 04 |
| 11/6/2010 |
Pacific Gas and Electric (WECC) |
3:53 p.m. |
Northern California |
Electrical System Separation - Islanding |
20 |
4 |
6:08 p.m. November 06 |
| 11/8/2010 |
ISO New England (NPCC) |
6:47 a.m. |
Maine |
Snow and High Winds |
N/A |
60,863 |
6:00 p.m. November 08 |
| 11/13/2010 |
Xcel Energy/Northern States Power Company (MRO) |
3:00 p.m. |
Minnesota |
Winter Storm |
N/A |
60,000 |
10:00 p.m. November 14 |
| 11/15/2010 |
Puget Sound Energy (WECC) |
11:00 p.m. |
Puget Sound Region |
High Winds |
391 |
149,256 |
2:14 a.m. November 16 |
| 11/21/2010 |
Pacific Gas and Electric (WECC) |
1:39 a.m. |
Northern and Central California |
Winter Storm |
75 |
60,000 |
4:46 p.m. November 24 |
| 11/22/2010 |
Puget Sound Energy (WECC) |
11:00 p.m. |
Puget Sound Region, Washington |
Winter Storm |
420 |
123,535 |
8:00 p.m. November 24 |
| 11/23/2010 |
Pacific Gas and Electric (WECC) |
2:01 p.m. |
Northern California |
Electrical System Separation - Islanding |
22 |
7,077 |
6:12 p.m. November 23 |
| December |
|
|
|
|
|
|
|
| 12/3/2010 |
Pacific Gas and Electric (WECC) |
9:32 p.m. |
California |
Electrical System Separation - Islanding |
22 |
7,077 |
2:00 a.m. December 04 |
| 12/12/2010 |
Detroit Edison (RFC) |
4:30 p.m. |
Southeastern Michigan |
Severe Weather |
210 |
60,175 |
2:00 p.m. December 15 |
| 12/14/2010 |
Pacific Gas and Electric (WECC) |
7:20 a.m. |
California |
Electrical System Separation - Islanding |
9 |
6,635 |
7:25 a.m. December 14 |
| 12/14/2010 |
California Department of Water Resources (WECC) |
7:36 a.m. |
Southern California |
Transmission Equipment/Firm System Load |
464 |
N/A |
9:00 a.m. December 15 |
| 12/18/2010 |
Puget Sound Energy (WECC) |
5:00 a.m. |
Redmond, Washington |
Severe Weather |
184 |
92,090 |
10:00 p.m. December 19 |
| 12/26/2010 |
Progress Energy Carolinas (SERC) |
8:15 a.m. |
Carolina |
Severe Weather |
N/A |
42,000 |
4:15 p.m. December 26 |
| 12/30/2010 |
AES Cayuga (RFC) |
2:00 p.m. |
New York |
Fuel Supply Deficiency |
300 |
N/A |
6:00 a.m. January 12 |
| [1] Estimated values. |
| Note: Estimates for 2010 are preliminary. |
| Source: Form OE-417, "Electric Emergency Incident and Disturbance Report." |