Knowledge (XXG)

Pilgrim Nuclear Power Station

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fossil-fuel powered power plant, using the seawater to remove heat from primary coolant away from sources of radioactive contamination. Approximately 480 million gallons of seawater were withdrawn daily from the bay through an intake embayment formed by two breakwaters, and then re-deposited into the bay causing a change in temperature at peak times (ΔT) of 3 °C (5.4 °F).
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After the aquatic organisms were impinged into the cooling system, they were discharged back into the bay as sediment. The resulting shadow effect killed plant and animal life around reactor discharge systems by curtailing the light and oxygen they need to survive; however, the intake and discharge
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PNPS operated a single reactor unit with a boiling water reactor and a steam turbine generator. The cooling and service water systems operated as a once-through cooling system, with Cape Cod Bay being the water source. The water was circulated in the plant's heat exchanger in the same manner as any
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In 2010, 75,835 people lived within 10 miles (16 km) of Pilgrim, an increase of 40.5% in a decade (according to an analysis of U.S. Census data for msnbc.com). 4,737,792 people lived within 50 miles (80 km), an increase of 10.2% since 2000. Cities within 50 miles included Boston (35 miles
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systems promptly restored the reactor water level to normal. Ironically, it was found that the pumps tripped due to a design flaw in a recent SCRAM reduction program intended to make the pumps less likely to trip. Quick action by the operators prevented a more serious low-water incident. It was the
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On October 13, 2015, the plant's owners announced that it would close by June 1, 2019, citing "market conditions and increased costs," which would have included tens of millions of dollars of necessary safety upgrades. Following closure, decommissioning is expected to take decades for radiation to
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During that process, the greatest environmental impact to the bay occurred through impingement and entrainment (I&E) of sea organisms and species. Entrainment occurs when small aquatic life forms are carried into and through the cooling system during water withdrawals. Impingement occurs when
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found that the significance of the potential environmental impacts of renewal would be small, with the exception of marine aquatic resources. Due to I&E, the continued operation of the cooling water system would rarely have impact on the local winter flounder (Pseudopleuronectes americanus)
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PNPS has been regularly monitoring I&E levels since 1974. They have reported I&E losses of millions of aquatic organisms each year. The EPA evaluated all species known to be impinged and entrained by the facility, including commercial, recreational, and
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The NRC's estimate of the yearly risk of an earthquake strong enough to cause core damage to the Pilgrim reactor was 1 in 14,493, according to their study published in August 2010, making it the second-most-at-risk plant when it was still operating.
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to shutdown the reactor prior to the third feedwater pump subsequently tripping. The loss of feedwater and sudden trip from the high power level caused the reactor water level to drop below -46 inches. After passing this point, the
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Pilgrim's original license to operate would have expired in 2012. In 2006, Entergy filed an application for an extended operating license (until 2032) with the NRC. In May 2012, the NRC approved the 20-year extension, with chairman
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species. Based on information provided in facility I&E monitoring reports, approximately 68 species have been identified in I&E collections since 1974, and 26 of these have commercial or recreational value.
482:, a local group which filed numerous legal and procedural challenges. The state attorney general also raised questions about, among other issues, the dangers posed by the onsite storage of spent nuclear fuel. 492:
In July 2013, the plant had to reduce output during a heat wave despite very high electricity demand, because the temperature of water drawn from Cape Cod Bay exceeded 75 °F, the limit set by the NRC.
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defined two emergency planning zones around nuclear power plants: a 10 mile (16 km) plume exposure pathway zone, concerned primarily with exposure to and inhalation of airborne
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On August 22, 2013, with the plant online at 98% power, two of the plant's main feedwater pumps tripped, causing a drop of the reactor water level. Operators inserted a manual
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population, and the Jones River population of rainbow smelt, and cumulative impacts on other marine aquatic species would be small to moderate.
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first time in the station's history that reactor water level reached a low-low condition and activated emergency core cooling systems.
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On April 11, 1986, a recurring equipment problem forced an emergency shutdown of the plant. The US
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in an on-site storage pool, waiting for federal direction on the correct disposal process. The
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organisms are trapped against cooling water intake screens or racks by force of moving water.
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canals remained a popular and lucrative local recreational fishing spot for local residents.
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production capacity, it produced about 14% of the electricity generated in Massachusetts.
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The plant was shut down May 31, 2019 and began the process of decommissioning.
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On January 27, 2015, the plant underwent a storm-induced unplanned shutdown.
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Decommissioning nuclear power plant located in Plymouth, Massachusetts
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was being considered for this purpose until its deselection in 2009.
464: 270: 2279:. US Nuclear Regulatory Commission. January 6, 2006. Archived from 2955: 497: 2212:"NRC Initiates Special Inspection at Pilgrim Nuclear Power Plant" 2980: 2975: 2960: 2277:"Backgrounder on Emergency Preparedness at Nuclear Power Plants" 510: 485:
In April 2013, the station increased its security following the
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Opposition to Pilgrim's license extension came mainly from
2183:"Warming bay water threatens to shut down nuclear reactor" 2111:"NRC votes to renew Pilgrim nuclear power plant's license" 2414:"What are the odds? US nuke plants ranked by quake risk" 1982:"General Electric Mark I Reactors in the United States" 2299:"Nuclear neighbors: Population rises near US reactors" 2060:"Nuclear Power Reactor Restarted After 33 Months Idle" 2229:"Pilgrim Nuclear Power Station Shut Down Permanently" 2217:. US Nuclear Regulatory Commission. February 2, 2015. 3444:
Buildings and structures in Plymouth, Massachusetts
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Nuclear Information and Resource Service. 3403:Anti-nuclear movement in the United States 2562: 2548: 2540: 2318: 2316: 29: 2530:Official Website of Pilgrim Power Station 1921:During the license renewal process, the 527: 3469:2019 disestablishments in Massachusetts 3439:Energy infrastructure completed in 1972 1948: 340:Related media on Commons 3449:Nuclear power plants in Massachusetts 2435:Hiland, Patrick (September 2, 2010). 1900:Environmental impacts on Cape Cod Bay 7: 3464:1972 establishments in Massachusetts 3408:Nuclear history of the United States 3375:Clinch River (Small Modular Reactor) 1999:"Massachusetts Nuclear Profile 2010" 445:of the electrical utility industry. 433:, the plant was sold in 1999 to the 3418:Nuclear safety in the United States 2571:Nuclear power in the United States 2160:"Security at nuke plant beefed up" 2007:United States Department of Energy 536:) of Pilgrim Nuclear Power Station 25: 2003:Energy Information Administration 2535:History of Pilgrim Power Station 2502: 2488: 2474: 2181:Schworm, Peter (July 18, 2013). 2166:. April 16, 2013. Archived from 2028:Abel, David (October 13, 2015). 200:Nuclear power station 160:beginning May 31, 2019 38: 3242:Clinch River (Breeder Reactor) 1957:"EIA - State Nuclear Profiles" 1: 2109:Adams, Steve (May 25, 2012). 2088:Nuclear Regulatory Commission 1923:Nuclear Regulatory Commission 1886:Nuclear Regulatory Commission 503:emergency core cooling system 450:Nuclear Regulatory Commission 359:Pilgrim Nuclear Power Station 330:Pilgrim Nuclear Power Station 44:Pilgrim Nuclear Power Station 33:Pilgrim Nuclear Power Station 312:Annual net output 175:$ 462.25 million (2007 USD) 18:Pilgrim Nuclear Power Plant 3485: 2389:American Geophysical Union 2253:"Electricity Data Browser" 475:the lone dissenting vote. 145:December 1, 1972 3393: 3133:Sodium Reactor Experiment 2510:Nuclear technology portal 1890:radioactive contamination 345: 254: 250: 128:August 26, 1968 49: 37: 267:Make and model 2344:"Cooling Water Intakes" 2233:www.entergynewsroom.com 487:Boston Marathon bombing 397:, and was powered by a 287:Nameplate capacity 125:Construction began 1880:Surrounding population 524:Electricity Production 385:, south of the tip of 259:Units operational 172:Construction cost 157:Decommission date 2009:(DOE). April 26, 2012 403:boiling water reactor 246:Power generation 235:Thermal capacity 215:Reactor supplier 2482:United States portal 300:Capacity factor 278:Units cancelled 141:Commission date 120:Being decommissioned 2283:on October 2, 2006. 538: 461:Yucca Mountain site 439:Entergy Corporation 367:nuclear power plant 321:External links 225:Cooling source 101:41.9450°N 70.5783°W 97: /  3179:whole plants only) 2998:Connecticut Yankee 2412:(March 17, 2011). 2398:on March 20, 2014. 2353:. 22 January 2015. 2297:(April 14, 2011). 2116:The Patriot Ledger 528: 457:spent nuclear fuel 413:. With a 690  3426: 3425: 3177:(incomplete list, 3138:Three Mile Island 1896:to city center). 1877: 1876: 1870: 1865: 1860: 1855: 1850: 1845: 1840: 1835: 1830: 1825: 1820: 1815: 1802: 1797: 1792: 1787: 1782: 1777: 1772: 1767: 1762: 1757: 1752: 1747: 1734: 1729: 1724: 1719: 1714: 1709: 1704: 1699: 1694: 1689: 1684: 1679: 1666: 1661: 1656: 1651: 1646: 1641: 1636: 1631: 1626: 1621: 1616: 1611: 1598: 1593: 1588: 1583: 1578: 1573: 1568: 1563: 1558: 1553: 1548: 1543: 1530: 1525: 1520: 1515: 1510: 1505: 1500: 1495: 1490: 1485: 1480: 1475: 1462: 1457: 1452: 1447: 1442: 1437: 1432: 1427: 1422: 1417: 1412: 1407: 1394: 1389: 1384: 1379: 1374: 1369: 1364: 1359: 1354: 1349: 1344: 1339: 1326: 1321: 1316: 1311: 1306: 1301: 1296: 1291: 1286: 1281: 1276: 1271: 1258: 1253: 1248: 1243: 1238: 1233: 1228: 1223: 1218: 1213: 1208: 1203: 1190: 1185: 1180: 1175: 1170: 1165: 1160: 1155: 1150: 1145: 1140: 1135: 1122: 1117: 1112: 1107: 1102: 1097: 1092: 1087: 1082: 1077: 1072: 1067: 1054: 1049: 1044: 1039: 1034: 1029: 1024: 1019: 1014: 1009: 1004: 999: 986: 981: 976: 971: 966: 961: 956: 951: 946: 941: 936: 931: 918: 913: 908: 903: 898: 893: 888: 883: 878: 873: 868: 863: 850: 845: 840: 835: 830: 825: 820: 815: 810: 805: 800: 795: 782: 777: 772: 767: 762: 757: 752: 747: 742: 737: 732: 727: 714: 709: 704: 699: 694: 689: 684: 679: 674: 669: 664: 659: 646: 641: 636: 631: 626: 621: 616: 611: 606: 601: 596: 591: 455:Pilgrim kept its 356: 355: 205:Reactor type 106:41.9450; -70.5783 16:(Redirected from 3476: 3385:Turkey Point-6/7 3180: 3083:Millstone Unit 1 3043:Fort Saint Vrain 2920:Fort Saint Vrain 2842: 2757: 2657: 2582: 2564: 2557: 2550: 2541: 2512: 2507: 2506: 2505: 2498: 2493: 2492: 2484: 2479: 2478: 2477: 2459: 2458: 2456: 2454: 2448: 2442:. 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110: 82: 78: 75: 74:Massachusetts 71: 67: 64: 60: 57:United States 56: 52: 48: 41: 36: 31: 19: 3380:North Anna-3 3357:Yellow Creek 3257:Forked River 3187:Allens Creek 3123:Shippingport 3097: 3088:Oyster Creek 3078:Maine Yankee 3063:Indian Point 3058:Humboldt Bay 3053:Hanford Site 3038:Fort Calhoun 2794:Enrico Fermi 2734:Turkey Point 2664:Browns Ferry 2629:Peach Bottom 2578:NRC Region I 2451:. Retrieved 2444:the original 2430: 2418:. Retrieved 2410:Dedman, Bill 2404: 2393:the original 2376: 2359: 2350: 2303:. Retrieved 2295:Dedman, Bill 2289: 2281:the original 2271: 2260:. Retrieved 2256: 2247: 2236:. Retrieved 2232: 2223: 2206: 2195: 2186: 2176: 2168:the original 2163: 2154: 2146:the original 2142:highbeam.com 2141: 2132: 2120:. Retrieved 2114: 2104: 2092:. Retrieved 2078: 2067:. Retrieved 2063: 2054: 2042:. Retrieved 2038:the original 2033: 2023: 2011:. Retrieved 1993: 1976: 1964:. Retrieved 1960: 1951: 1937: 1934:Seismic risk 1928: 1920: 1911: 1907: 1903: 1894: 1883: 535: 530:Generation ( 529: 519: 516: 495: 491: 484: 477: 469: 454: 447: 443:deregulation 428: 419: 405:inside of a 383:Cape Cod Bay 362: 358: 357: 238:1 × 2.028 GW 229:Cape Cod Bay 3317:South River 3292:Marble Hill 3287:Levy County 3232:CFPP, Idaho 3158:Yankee Rowe 3108:Rancho Seco 2894:South Texas 2829:Quad Cities 2819:Point Beach 2784:Davis–Besse 2644:Susquehanna 2599:FitzPatrick 2581:(Northeast) 2257:www.eia.gov 1961:www.eia.gov 1915:forage fish 387:Rocky Point 377:section of 281:2 × 1.18 GW 190:Operator(s) 104: / 80:Coordinates 3433:Categories 3327:Summer-2/3 3322:Stanislaus 3312:Sears Isle 3272:Hartsville 3227:Bodega Bay 3222:Blue Hills 3212:Bellefonte 3148:Vallecitos 3113:San Onofre 3093:Pathfinder 2904:Wolf Creek 2889:River Bend 2884:Palo Verde 2879:Grand Gulf 2804:Monticello 2699:North Anna 2609:Hope Creek 2416:. NBC News 2301:. NBC News 2262:2023-01-08 2238:2019-06-02 2069:2022-04-12 1873:2,177,204 1805:4,441,563 1737:5,047,170 1669:5,414,318 1601:4,994,806 1533:5,769,154 1465:4,330,643 1397:5,859,540 1329:5,085,220 1261:5,917,813 1193:5,396,021 1125:5,868,639 1057:5,119,789 989:5,829,658 921:5,475,057 853:5,938,600 785:4,977,955 717:5,768,766 649:5,144,033 262:1 × 677 MW 164:2019-05-31 149:1972-12-01 132:1968-08-26 3332:Sundesert 3217:Black Fox 3207:Bell Bend 3173:Cancelled 3073:La Crosse 3028:Elk River 2913:Converted 2899:Waterford 2809:Palisades 2764:Braidwood 2756:(Midwest) 2744:Watts Bar 2669:Brunswick 2619:Millstone 2453:April 19, 2420:April 19, 2164:3 News NZ 1966:3 October 435:Louisiana 411:generator 92:70°34.7′W 89:41°56.7′N 3337:Victoria 3307:Offshore 3302:Montague 3237:Cherokee 3192:Atlantic 3128:Shoreham 3068:Kewaunee 2930:Somerset 2859:Columbia 2854:Callaway 2849:Arkansas 2714:Sequoyah 2709:Robinson 2639:Seabrook 2614:Limerick 2520:DoE Page 2044:June 22, 379:Plymouth 273:(Mark 1) 180:Owner(s) 66:Plymouth 62:Location 3454:Entergy 3350:3 and 5 3345:1 and 4 3098:Pilgrim 3033:Fermi 1 2925:Midland 2799:LaSalle 2789:Dresden 2774:Clinton 2694:McGuire 2674:Catawba 2656:(South) 2351:epa.gov 2122:May 25, 2094:May 25, 2086:. U.S. 2064:AP NEWS 2013:May 25, 2005:(EIA), 1834:302,379 1829:476,826 1824:492,267 1819:455,294 1814:450,438 1801:504,245 1796:448,844 1791:372,125 1786:308,016 1781:390,998 1776:491,071 1771:436,915 1766:443,221 1761:114,483 1751:455,535 1746:393,142 1733:505,927 1728:488,578 1723:490,220 1718:476,799 1713:494,508 1708:501,875 1703:482,305 1698:126,473 1693:134,928 1688:496,099 1683:344,134 1678:505,324 1665:375,057 1660:488,314 1655:490,224 1650:297,304 1645:397,177 1640:501,420 1635:471,322 1630:495,025 1625:489,091 1620:498,382 1615:402,912 1610:508,090 1597:501,367 1592:490,691 1587:497,922 1582:485,608 1577:442,078 1572:503,035 1567:475,870 1562:107,757 1557:302,697 1552:505,736 1547:252,653 1542:429,392 1529:500,218 1524:492,016 1519:499,872 1514:486,567 1509:426,297 1504:506,160 1499:482,972 1494:413,473 1489:491,227 1484:502,304 1479:459,371 1474:508,677 1461:441,206 1456:486,474 1451:386,722 1446:327,986 1441:380,750 1436:499,580 1431:473,949 1421:189,221 1416:469,668 1411:315,145 1406:352,154 1393:507,285 1388:483,192 1383:505,011 1378:485,638 1373:497,598 1368:491,625 1363:477,496 1358:442,317 1353:489,186 1348:504,978 1343:468,256 1338:506,958 1325:441,353 1320:354,234 1315:502,863 1310:480,965 1305:500,808 1300:497,546 1295:486,064 1290:200,811 1285:235,351 1280:482,848 1275:394,924 1270:507,453 1257:502,858 1252:485,472 1247:497,636 1242:485,461 1237:497,437 1232:496,441 1227:489,418 1222:496,145 1217:492,103 1212:505,149 1207:460,217 1202:509,476 1189:508,818 1184:491,784 1179:503,203 1174:487,629 1169:499,942 1164:499,073 1159:488,015 1154:185,075 1149:263,007 1144:507,752 1139:451,656 1134:510,067 1121:441,275 1116:492,357 1111:502,739 1106:487,785 1101:496,811 1096:507,534 1091:484,157 1086:506,841 1081:448,398 1076:510,487 1071:478,576 1066:511,679 1053:466,813 1048:494,987 1043:503,198 1038:487,024 1033:500,238 1028:443,982 1023:491,401 1018:345,315 1008:382,851 1003:434,146 998:496,378 985:508,054 980:491,784 975:501,301 970:487,899 965:498,435 960:507,333 955:479,200 950:508,402 945:492,887 940:417,109 935:461,696 930:475,558 917:510,951 912:486,613 907:496,574 902:491,688 897:502,668 892:506,701 887:488,551 882:291,667 877:242,596 872:495,507 867:453,958 862:507,583 849:511,570 844:487,798 839:506,741 834:480,302 829:507,669 824:502,238 819:489,062 814:510,344 809:494,514 804:455,553 799:479,839 794:512,970 781:508,456 776:491,003 771:337,364 766:456,319 761:498,276 756:508,524 751:435,051 746:181,530 741:283,436 736:464,668 731:316,163 726:497,165 713:491,128 708:480,311 703:496,480 698:461,774 693:493,256 688:466,456 683:460,816 678:493,183 673:481,927 668:492,733 663:452,918 658:497,784 645:431,382 640:484,169 635:497,586 630:475,870 625:411,345 620:491,576 615:455,358 610:149,753 605:315,658 600:490,652 595:449,547 590:491,137 437:-based 425:History 421:decay. 395:Bechtel 375:Manomet 373:in the 336:Commons 326:Website 194:Entergy 184:Entergy 162: ( 147: ( 130: ( 54:Country 3367:Future 3341:WPPSS 3262:Galena 3202:Barton 3197:Bailly 3143:Trojan 3118:Saxton 3048:Hallam 3023:EBR II 2944:Closed 2935:Zimmer 2869:Cooper 2841:(West) 2739:Vogtle 2724:Summer 2704:Oconee 2684:Harris 2679:Farley 2305:May 1, 1756:82,968 1013:73,456 465:Nevada 401:BWR 3 117:Status 3277:Haven 3103:Piqua 3018:EBR I 2986:SM-1A 2971:PM-3A 2956:MH-1A 2814:Perry 2769:Byron 2729:Surry 2689:Hatch 2634:Salem 2604:Ginna 2447:(PDF) 2440:(PDF) 2396:(PDF) 2385:(PDF) 2368:(PDF) 2347:(PDF) 2327:(PDF) 2215:(PDF) 1985:(PDF) 1943:Notes 1810:2019 1742:2018 1674:2017 1606:2016 1538:2015 1470:2014 1426:7,788 1402:2013 1334:2012 1266:2011 1198:2010 1130:2009 1062:2008 994:2007 926:2006 858:2005 790:2004 722:2003 654:2002 586:2001 542:Year 498:SCRAM 347:[ 271:BWR-3 3297:MM-1 3252:Erie 3163:Zion 3013:DAEC 3008:CVTR 2981:SM-1 2976:SL-1 2966:PM-1 2961:ML-1 2951:ANPP 2779:Cook 2455:2011 2422:2011 2307:2011 2124:2012 2096:2012 2046:2017 2015:2012 1968:2017 1884:The 578:Dec 575:Nov 572:Oct 569:Sep 566:Aug 563:Jul 560:Jun 557:May 554:Apr 551:Mar 548:Feb 545:Jan 511:HPCI 509:and 507:RCIC 409:and 363:PNPS 291:677 3282:Lee 533:MWh 463:in 415:MWe 381:on 369:in 209:BWR 3435:: 2387:. 2349:. 2335:^ 2315:^ 2255:. 2231:. 2185:. 2162:. 2140:. 2113:. 2062:. 2032:. 2001:. 1959:. 1869:-- 1864:-- 1859:-- 1854:-- 1849:-- 1844:-- 1839:-- 489:. 293:MW 240:th 72:, 68:, 2563:e 2556:t 2549:v 2457:. 2424:. 2309:. 2265:. 2241:. 2189:. 2126:. 2098:. 2072:. 2048:. 2017:. 1970:. 361:( 351:] 166:) 151:) 134:) 20:)

Index

Pilgrim Nuclear Power Plant

Plymouth
Plymouth County
Massachusetts
41°56.7′N 70°34.7′W / 41.9450°N 70.5783°W / 41.9450; -70.5783
Commission date
Entergy
Entergy
BWR
General Electric
Cape Cod Bay
BWR-3
Nameplate capacity
MW
Capacity factor
Annual net output
Pilgrim Nuclear Power Station
Related media on Commons
edit on Wikidata
nuclear power plant
Massachusetts
Manomet
Plymouth
Cape Cod Bay
Rocky Point
Priscilla Beach
Bechtel
General Electric
boiling water reactor

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