Calvert Cliffs
Calvert Cliffs

View of Calvert Cliffs from the Chesapeake Bay

Location:

  • Calvert County

Ownership:

  • Constellation Nuclear Energy Group

Fuel Types:

  • Nuclear

Number of Units:

  • 2 Steam

Net Summer Capacity (MW):

  • 1705

Date Online:

  • May 1975

Plant Specific Info:

  • The Calvert Cliffs plants houses two pressurized water reactor (PWR) units. Unit 1 was manufactured by GE, and Unit 2 by Westinghouse.

Fuel and Waste Storage:

  • After being unloaded from the reactor, spent nuclear fuel rods are housed in the plant's spent fuel pool until they have adequately cooled for transfer to dry storage. This spent fuel is considered high-level nuclear waste and remains in the cooling pool for multiple years. After time in the spent fuel pools the rods are transferred to dry cask storage--metal and concrete cannisters--that are currently stored on site pending the development of a national nuclear waste respository.

Cooling System:

  • Units 1&2: Once-through system, 1,200,000 gallons per minute per unit

2011 Generation (MWh):

  • 14,397,437

Units
Unit #
Online Date
Nameplate Capacity
Unit Type
Fuels
1
1975
918
ST
NUC
2
1977
910.7
ST
NUC

Annual Monthly Generation
Fuel Category
Year
Unit Type
Fuel Description
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Annual
Nuclear
2001
NUC
1293872
1168618
963457
623493
938578
1202772
1252634
1245846
1212574
1223040
1244048
1287335
13656267
Nuclear
2002
NUC
1288202
862457
645092
619921
639467
829551
1146622
1242220
1211273
1271399
1079479
1292322
12128005
Nuclear
2003
ST
NUC
647173
584126
647476
624201
644533
617925
631896
624440
607094
642356
615725
645509
7532454
Nuclear
2003
ST
NUC
645490
288107
0
160643
614563
622126
638338
633814
619244
651317
629339
655278
6158259
Nuclear
2004
ST
NUC
641232
604298
606434
182967
459377
632339
645229
642833
626231
659618
644799
667686
7013043
Nuclear
2004
ST
NUC
604448
614650
655017
633487
645250
618470
633739
629875
604825
642016
629906
655534
7567217
Nuclear
2005
ST
NUC
667734
601330
628760
632470
655416
618560
629018
627491
610670
644727
636566
659206
7611948
Nuclear
2005
ST
NUC
655256
446049
320966
635178
652315
621570
625913
624870
607707
638690
612803
649956
7091273
Nuclear
2006
ST
NUC
660291
407845
0
389533
659333
629651
638517
636519
625168
656500
638906
496077
6438340
Nuclear
2006
ST
NUC
636357
585000
648193
625025
644508
616754
625749
622124
608000
631365
514338
634658
7392071
Nuclear
2007
ST
NUC
645996
586474
661313
643783
649923
625294
637887
631196
614691
636405
637788
661483
7632233
Nuclear
2007
ST
NUC
652001
499602
0
538238
653306
615938
628632
620200
608527
628138
624993
651384
6720959
Nuclear
2008
ST
NUC
662589
462340
330767
637893
654157
619566
625190
623427
616853
641248
633940
657301
7165271
Nuclear
2008
ST
NUC
652737
607405
646073
624527
637956
612276
616896
611869
596300
631875
627252
648258
7513424
Nuclear
2009
ST
NUC
656629
595852
657793
635824
651578
619088
535933
626807
615991
644182
632102
656791
7528570
Nuclear
2009
ST
NUC
647148
449371
283046
624504
640356
607556
622614
619175
609925
638455
627240
652159
7021549
Nuclear
2010
ST
NUC
658750
369083
157699
632739
508952
615203
627012
624621
612221
650594
636500
661669
6755043
Nuclear
2010
ST
NUC
653589
374001
649179
625199
632030
593147
601572
610194
602413
629740
619930
647911
7238905
Nuclear
2011
ST
NUC
663542
597737
656482
636315
649882
615165
633090
550577
609226
642104
642073
664142
7560335
Nuclear
2011
ST
NUC
651910
268059
308665
628374
648781
567484
614863
620944
608345
635868
631048
652761
6837102
Nuclear
2012
ST
NUC
664662
88887
0
433547
666150
634409
556434
528284
620487
661180
567199
651520
6072759
Nuclear
2012
ST
NUC
652327
574064
649574
618177
643028
610390
613828
619585
610233
640469
629389
645443
7506507

Unit Type: GT = gas turbine; CT = combustion turbine; ST = steam turbine; IC = internal combustion

Fuel Type: BFG=Bast Furnace Natural Gas; BIT=Coal; BLQ=Black Liquor; DFO=Oil; FO2=Oil; FO6=Oil; JF=Oil; KER=Oil; LFG=Biomass; MSB=Municipal Solid Waste; MSN=Municipal Solid Waste; MSW=Municipal Solid Waste; NG=Natural Gas; NUC=Nuclear; OBL=Biomass; OIL=Oil; OTH=Other; PG=Oil; REF=Municipal Solid Waste; RFO=Oil; SC=Coal; SUB=Coal; SUN=Solar; TDF=Other; UR=Nuclear; WAT=Hydropower; WC=Coal; WDL=Biomass; WDS=Biomass; WND=Wind; WO=Oil


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This page was updated on June 30, 2013.