Current Snapshot
Latest Year
2012
2012 Participants
3,214
2012 Assets
$965,333,563
2012 Contributions
$43,428,657
Historical Graphs
Total Assets Over Time
Aggregate end-of-year assets by filing year, excluding zero-asset years
Participants Over Time
Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans
Company Timeline
Year summaries and individual filings are combined here so you can stay in one place while moving across years and plan filings.
| Year / Filing | Filings | Participants | Assets | Contributions | Contrib./Participant |
|---|---|---|---|---|---|
| 2012 | 3 | 3,214 | $965,333,563 | $43,428,657 | $13,512iApproximate average salary by contribution assumption: employee only about $337,808 at 4% or $225,206 at 6%; with 50% employer match about $225,206 at 4% or $150,137 at 6%; with 100% employer match about $168,904 at 4% or $112,603 at 6%. |
| Boston Edison Savings Plan | - | 3,029 | $965,333,563 | $43,428,657 | $14,338iApproximate average salary by contribution assumption: employee only about $358,441 at 4% or $238,960 at 6%; with 50% employer match about $238,960 at 4% or $159,307 at 6%; with 100% employer match about $179,220 at 4% or $119,480 at 6%. |
| GROUP WELFARE BENEFITS FOR EMPLOYEES OF NSTAR | - | 3,214 | - | - | - |
| NSTAR SEVERANCE PAY PLAN | - | 870 | - | - | - |
| 2011 | 5 | 3,115 | $2,202,749,546 | $198,546,859 | $63,739iApproximate average salary by contribution assumption: employee only about $1,593,474 at 4% or $1,062,316 at 6%; with 50% employer match about $1,062,316 at 4% or $708,211 at 6%; with 100% employer match about $796,737 at 4% or $531,158 at 6%. |
| Pension Pl for Empl of Commonwealth Energy Systems & Sub Cos | - | 2,883 | $1,061,636,845 | $125,014,772 | $43,363iApproximate average salary by contribution assumption: employee only about $1,084,068 at 4% or $722,712 at 6%; with 50% employer match about $722,712 at 4% or $481,808 at 6%; with 100% employer match about $542,034 at 4% or $361,356 at 6%. |
| Boston Edison Savings Plan | - | 3,115 | $884,235,006 | $40,413,831 | $12,974iApproximate average salary by contribution assumption: employee only about $324,349 at 4% or $216,232 at 6%; with 50% employer match about $216,232 at 4% or $144,155 at 6%; with 100% employer match about $162,174 at 4% or $108,116 at 6%. |
| GROUP WELFARE BENEFITS PLAN FOR RETIREES OF NSTAR | - | 0 | $256,877,695 | $33,118,256 | - |
| NSTAR SEVERANCE PAY PLAN | - | 854 | - | - | - |
| GROUP WELFARE BENEFITS FOR EMPLOYEES OF NSTAR | - | 3,064 | - | - | - |
| 2010 | 6 | 3,050 | $2,106,194,757 | $95,166,316 | $31,202iApproximate average salary by contribution assumption: employee only about $780,052 at 4% or $520,035 at 6%; with 50% employer match about $520,035 at 4% or $346,690 at 6%; with 100% employer match about $390,026 at 4% or $260,017 at 6%. |
| Pension Pl for Empl of Commonwealth Energy Systems & Sub Cos | - | 2,948 | $1,002,960,996 | $25,018,022 | $8,486iApproximate average salary by contribution assumption: employee only about $212,161 at 4% or $141,441 at 6%; with 50% employer match about $141,441 at 4% or $94,294 at 6%; with 100% employer match about $106,080 at 4% or $70,720 at 6%. |
| Boston Edison Savings Plan | - | 3,050 | $844,557,256 | $37,151,286 | $12,181iApproximate average salary by contribution assumption: employee only about $304,519 at 4% or $203,012 at 6%; with 50% employer match about $203,012 at 4% or $135,342 at 6%; with 100% employer match about $152,259 at 4% or $101,506 at 6%. |
| GROUP WELFARE BENEFITS PLAN FOR RETIREES OF NSTAR | - | 0 | $258,676,505 | $32,906,753 | - |
| GROUP WELFARE BENEFITS FOR EMPLOYEES OF NSTAR | - | 3,017 | - | - | - |
| NSTAR SEVERANCE PAY PLAN | - | 861 | - | - | - |
| NSTAR LONG TERM DISABILITY PLAN | - | 0 | - | $90,255 | - |
| 2009 | 6 | 3,113 | $1,897,628,639 | $193,778,312 | $62,248iApproximate average salary by contribution assumption: employee only about $1,556,202 at 4% or $1,037,468 at 6%; with 50% employer match about $1,037,468 at 4% or $691,645 at 6%; with 100% employer match about $778,101 at 4% or $518,734 at 6%. |
| Pension Pl for Empl of Commonwealth Energy Systems & Sub Cos | - | 3,021 | $924,231,508 | $125,019,205 | $41,383iApproximate average salary by contribution assumption: employee only about $1,034,585 at 4% or $689,723 at 6%; with 50% employer match about $689,723 at 4% or $459,815 at 6%; with 100% employer match about $517,292 at 4% or $344,862 at 6%. |
| Boston Edison Savings Plan | - | 3,065 | $750,722,396 | $36,175,527 | $11,803iApproximate average salary by contribution assumption: employee only about $295,070 at 4% or $196,713 at 6%; with 50% employer match about $196,713 at 4% or $131,142 at 6%; with 100% employer match about $147,535 at 4% or $98,357 at 6%. |
| GROUP WELFARE BENEFITS PLAN FOR RETIREES OF NSTAR | - | - | $222,273,092 | $32,583,580 | - |
| NSTAR LONG TERM DISABILITY PLAN | - | 3,076 | $401,643 | - | - |
| NSTAR SEVERANCE PAY PLAN | - | 967 | - | - | - |
| GROUP WELFARE BENEFITS FOR EMPLOYEES OF NSTAR | - | 3,113 | - | - | - |
| 2008 | 6 | 3,212 | $1,592,441,255 | $126,030,829 | $39,237iApproximate average salary by contribution assumption: employee only about $980,937 at 4% or $653,958 at 6%; with 50% employer match about $653,958 at 4% or $435,972 at 6%; with 100% employer match about $490,469 at 4% or $326,979 at 6%. |
| Pension Pl for Empl of Commonwealth Energy Systems & Sub Cos | - | 3,030 | $771,892,489 | $72,624,285 | $23,968iApproximate average salary by contribution assumption: employee only about $599,210 at 4% or $399,474 at 6%; with 50% employer match about $399,474 at 4% or $266,316 at 6%; with 100% employer match about $299,605 at 4% or $199,737 at 6%. |
| Boston Edison Savings Plan | - | 3,137 | $646,612,053 | $37,913,761 | $12,086iApproximate average salary by contribution assumption: employee only about $302,150 at 4% or $201,433 at 6%; with 50% employer match about $201,433 at 4% or $134,289 at 6%; with 100% employer match about $151,075 at 4% or $100,717 at 6%. |
| GROUP WELFARE BENEFITS FOR RETIREES OF NSTAR | - | 0 | $173,033,667 | $15,492,783 | - |
| NSTAR LONG TERM DISABILITY PLAN | - | 33 | $903,046 | - | - |
| NSTAR SEVERANCE PAY PLAN | - | 1,003 | - | - | - |
| GROUP WELFARE BENEFITS FOR EMPLOYEES OF NSTAR | - | 3,212 | - | - | - |
| 2007 | 6 | 3,304 | $2,226,156,256 | $54,542,939 | $16,508iApproximate average salary by contribution assumption: employee only about $412,704 at 4% or $275,136 at 6%; with 50% employer match about $275,136 at 4% or $183,424 at 6%; with 100% employer match about $206,352 at 4% or $137,568 at 6%. |
| Pension Pl for Empl of Commonwealth Energy Systems & Sub Cos | - | 2,888 | $1,129,044,761 | $1,532,357 | $531iApproximate average salary by contribution assumption: employee only about $13,265 at 4% or $8,843 at 6%; with 50% employer match about $8,843 at 4% or $5,895 at 6%; with 100% employer match about $6,632 at 4% or $4,422 at 6%. |
| Boston Edison Savings Plan | - | 3,304 | $815,402,922 | $36,879,006 | $11,162iApproximate average salary by contribution assumption: employee only about $279,048 at 4% or $186,032 at 6%; with 50% employer match about $186,032 at 4% or $124,021 at 6%; with 100% employer match about $139,524 at 4% or $93,016 at 6%. |
| GROUP WELFARE BENEFITS FOR RETIREES OF NSTAR | - | 0 | $280,397,880 | $16,131,576 | - |
| NSTAR LONG TERM DISABILITY PLAN | - | 37 | $1,310,693 | - | - |
| GROUP WELFARE BENEFITS FOR EMPLOYEES OF NSTAR | - | 3,156 | - | - | - |
| NSTAR SEVERANCE PAY PLAN | - | 977 | - | - | - |
| 2006 | 6 | 3,226 | $2,289,138,661 | $49,293,231 | $15,280iApproximate average salary by contribution assumption: employee only about $382,000 at 4% or $254,666 at 6%; with 50% employer match about $254,666 at 4% or $169,778 at 6%; with 100% employer match about $191,000 at 4% or $127,333 at 6%. |
| Pension Pl for Empl of Commonwealth Energy Systems & Sub Cos | - | 2,852 | $1,232,406,911 | $36,165 | $13iApproximate average salary by contribution assumption: employee only about $317 at 4% or $211 at 6%; with 50% employer match about $211 at 4% or $141 at 6%; with 100% employer match about $159 at 4% or $106 at 6%. |
| Boston Edison Savings Plan | - | 3,226 | $771,613,690 | $35,729,142 | $11,075iApproximate average salary by contribution assumption: employee only about $276,884 at 4% or $184,589 at 6%; with 50% employer match about $184,589 at 4% or $123,060 at 6%; with 100% employer match about $138,442 at 4% or $92,295 at 6%. |
| GROUP WELFARE BENEFITS FOR RETIREES OF NSTAR | - | 0 | $283,041,225 | $13,527,924 | - |
| NSTAR LONG TERM DISABILITY PLAN | - | 42 | $2,076,835 | - | - |
| NSTAR SEVERANCE PAY PLAN | - | 890 | - | - | - |
| GROUP WELFARE BENEFITS FOR EMPLOYEES OF NSTAR | - | 3,095 | - | - | - |
| 2005 | 5 | 3,174 | $947,312,636 | $65,290,478 | $20,570iApproximate average salary by contribution assumption: employee only about $514,260 at 4% or $342,840 at 6%; with 50% employer match about $342,840 at 4% or $228,560 at 6%; with 100% employer match about $257,130 at 4% or $171,420 at 6%. |
| Boston Edison Savings Plan | - | 3,174 | $674,521,729 | $33,286,197 | $10,487iApproximate average salary by contribution assumption: employee only about $262,179 at 4% or $174,786 at 6%; with 50% employer match about $174,786 at 4% or $116,524 at 6%; with 100% employer match about $131,089 at 4% or $87,393 at 6%. |
| GROUP WELFARE BENEFITS FOR RETIREES OF NSTAR | - | 2,861 | $270,156,853 | $32,004,281 | $11,186iApproximate average salary by contribution assumption: employee only about $279,660 at 4% or $186,440 at 6%; with 50% employer match about $186,440 at 4% or $124,293 at 6%; with 100% employer match about $139,830 at 4% or $93,220 at 6%. |
| NSTAR LONG TERM DISABILITY PLAN | - | 49 | $2,634,054 | - | - |
| GROUP WELFARE BENEFITS FOR EMPLOYEES OF NSTAR | - | 3,021 | - | - | - |
| NSTAR SEVERANCE PAY PLAN | - | 3,021 | - | - | - |
| 2004 | 5 | 3,199 | $891,164,023 | $54,015,736 | $16,885iApproximate average salary by contribution assumption: employee only about $422,130 at 4% or $281,420 at 6%; with 50% employer match about $281,420 at 4% or $187,613 at 6%; with 100% employer match about $211,065 at 4% or $140,710 at 6%. |
| Boston Edison Savings Plan | - | 3,199 | $638,971,789 | $32,181,042 | $10,060iApproximate average salary by contribution assumption: employee only about $251,493 at 4% or $167,662 at 6%; with 50% employer match about $167,662 at 4% or $111,775 at 6%; with 100% employer match about $125,746 at 4% or $83,831 at 6%. |
| GROUP WELFARE BENEFITS FOR RETIREES OF NSTAR | - | 0 | $248,978,327 | $21,834,694 | - |
| NSTAR LONG TERM DISABILITY PLAN | - | 46 | $3,213,907 | - | - |
| GROUP WELFARE BENEFITS FOR EMPLOYEES OF NSTAR | - | 3,058 | - | - | - |
| NSTAR SEVERANCE PAY PLAN | - | 3,058 | - | - | - |
| 2003 | 5 | 3,304 | $810,061,011 | $63,081,156 | $19,092iApproximate average salary by contribution assumption: employee only about $477,309 at 4% or $318,206 at 6%; with 50% employer match about $318,206 at 4% or $212,137 at 6%; with 100% employer match about $238,654 at 4% or $159,103 at 6%. |
| Boston Edison Savings Plan | - | 3,304 | $577,983,133 | $31,739,959 | $9,607iApproximate average salary by contribution assumption: employee only about $240,163 at 4% or $160,109 at 6%; with 50% employer match about $160,109 at 4% or $106,739 at 6%; with 100% employer match about $120,082 at 4% or $80,054 at 6%. |
| GROUP WELFARE BENEFITS FOR RETIREES OF NSTAR | - | 0 | $228,445,331 | $31,341,197 | - |
| NSTAR LONG TERM DISABILITY PLAN | - | 44 | $3,632,547 | - | - |
| GROUP WELFARE BENEFITS FOR EMPLOYEES OF NSTAR | - | 3,152 | - | - | - |
| NSTAR SEVERANCE PAY PLAN | - | 3,152 | - | - | - |
| 2002 | 5 | 3,446 | $661,409,839 | $64,847,574 | $18,818iApproximate average salary by contribution assumption: employee only about $470,455 at 4% or $313,637 at 6%; with 50% employer match about $313,637 at 4% or $209,091 at 6%; with 100% employer match about $235,228 at 4% or $156,818 at 6%. |
| Boston Edison Savings Plan | - | 3,446 | $480,790,859 | $31,858,002 | $9,245iApproximate average salary by contribution assumption: employee only about $231,123 at 4% or $154,082 at 6%; with 50% employer match about $154,082 at 4% or $102,721 at 6%; with 100% employer match about $115,562 at 4% or $77,041 at 6%. |
| GROUP WELFARE BENEFITS FOR RETIREES OF NSTAR | - | 0 | $180,618,980 | $32,989,572 | - |
| GROUP WELFARE BENEFITS FOR EMPLOYEES OF NSTAR | - | 3,286 | - | - | - |
| NSTAR SEVERANCE PAY PLAN | - | 3,286 | - | - | - |
| NSTAR LONG TERM DISABILITY PLAN | - | 45 | - | - | - |
| 2001 | 8 | 3,380 | $727,628,920 | $65,860,129 | $19,485iApproximate average salary by contribution assumption: employee only about $487,131 at 4% or $324,754 at 6%; with 50% employer match about $324,754 at 4% or $216,503 at 6%; with 100% employer match about $243,566 at 4% or $162,377 at 6%. |
| Boston Edison Savings Plan | - | 3,380 | $533,309,429 | $24,458,506 | $7,236iApproximate average salary by contribution assumption: employee only about $180,906 at 4% or $120,604 at 6%; with 50% employer match about $120,604 at 4% or $80,403 at 6%; with 100% employer match about $90,453 at 4% or $60,302 at 6%. |
| GROUP WELFARE BENEFITS FOR RETIREES OF NSTAR | - | 0 | $194,319,491 | $35,352,075 | - |
| NSTAR SEVERANCE PAY PLAN | - | 3,169 | - | - | - |
| GROUP WELFARE BENEFITS FOR EMPLOYEES OF NSTAR | - | 3,169 | - | - | - |
| Boston Edison Negotiated Savings Plan for Office, Technical & Professional Employees | - | 0 | - | $1,180,065 | - |
| Boston Edison Negotiated Savings Plan for Production & Maintenance | - | 0 | - | $2,745,630 | - |
| Empl Savings Pl of Commonwealth Energy Syst & Sub Cos | - | 0 | - | $2,123,853 | - |
| LONG TERM DISABILITY PLAN OF COMMONWEALTH ENERGY SYSTEM & SUBSIDIARY COMPANIES | - | 29 | - | - | - |
| 2000 | 7 | 3,189 | $666,066,069 | $79,612,111 | $24,965iApproximate average salary by contribution assumption: employee only about $624,115 at 4% or $416,077 at 6%; with 50% employer match about $416,077 at 4% or $277,384 at 6%; with 100% employer match about $312,058 at 4% or $208,038 at 6%. |
| Empl Savings Pl of Commonwealth Energy Syst & Sub Cos | - | 1,330 | $289,266,482 | $9,535,537 | $7,170iApproximate average salary by contribution assumption: employee only about $179,239 at 4% or $119,493 at 6%; with 50% employer match about $119,493 at 4% or $79,662 at 6%; with 100% employer match about $89,620 at 4% or $59,746 at 6%. |
| GROUP WELFARE BENEFITS PLAN FOR RETIREES OF NSTAR | - | 0 | $199,497,796 | $59,967,436 | - |
| Boston Edison Savings Plan | - | 618 | $121,401,520 | $6,196,544 | $10,027iApproximate average salary by contribution assumption: employee only about $250,669 at 4% or $167,113 at 6%; with 50% employer match about $167,113 at 4% or $111,409 at 6%; with 100% employer match about $125,335 at 4% or $83,556 at 6%. |
| Boston Edison Negotiated Savings Plan for Office, Technical & Professional Employees | - | 626 | $55,900,271 | $3,912,594 | $6,250iApproximate average salary by contribution assumption: employee only about $156,254 at 4% or $104,169 at 6%; with 50% employer match about $104,169 at 4% or $69,446 at 6%; with 100% employer match about $78,127 at 4% or $52,085 at 6%. |
| NSTAR SEVERANCE PAY PLAN | - | 3,004 | - | - | - |
| GROUP WELFARE BENEFITS FOR EMPLOYEES OF NSTAR | - | 3,189 | - | - | - |
| Boston Edison Negotiated Savings Plan for Production & Maintenance | - | 1,629 | - | - | - |
| 1999 | 5 | 1,621 | $1,123,468,627 | $62,719,600 | $38,692iApproximate average salary by contribution assumption: employee only about $967,298 at 4% or $644,865 at 6%; with 50% employer match about $644,865 at 4% or $429,910 at 6%; with 100% employer match about $483,649 at 4% or $322,433 at 6%. |
| Pension Pl for Empl of Commonwealth Energy Systems & Sub Cos | - | 0 | $475,918,622 | $26,742,261 | - |
| Empl Savings Pl of Commonwealth Energy Syst & Sub Cos | - | 1,481 | $334,009,000 | $10,975,000 | $7,411iApproximate average salary by contribution assumption: employee only about $185,263 at 4% or $123,509 at 6%; with 50% employer match about $123,509 at 4% or $82,339 at 6%; with 100% employer match about $92,632 at 4% or $61,754 at 6%. |
| Boston Edison Savings Plan | - | 707 | $141,978,723 | $10,678,566 | $15,104iApproximate average salary by contribution assumption: employee only about $377,601 at 4% or $251,734 at 6%; with 50% employer match about $251,734 at 4% or $167,823 at 6%; with 100% employer match about $188,801 at 4% or $125,867 at 6%. |
| Boston Edison Negotiated Savings Plan for Production & Maintenance | - | 1,621 | $107,031,794 | $9,272,603 | $5,720iApproximate average salary by contribution assumption: employee only about $143,007 at 4% or $95,338 at 6%; with 50% employer match about $95,338 at 4% or $63,559 at 6%; with 100% employer match about $71,504 at 4% or $47,669 at 6%. |
| Boston Edison Negotiated Savings Plan for Office, Technical & Professional Employees | - | 602 | $64,530,488 | $5,051,170 | $8,391iApproximate average salary by contribution assumption: employee only about $209,766 at 4% or $139,844 at 6%; with 50% employer match about $139,844 at 4% or $93,229 at 6%; with 100% employer match about $104,883 at 4% or $69,922 at 6%. |