SEC FILE NUMBER
                                                                       001-08291
                                                                    CUSIP NUMBER
                                                                        39315410

                                  UNITED STATE
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM 12b-25

                           NOTIFICATION OF LATE FILING

(Check  One):  [X]  Form  10-K   [  ]  Form  20-F  [  ] Form 11-K  [ ] Form 10-Q
              [  ]  Form  N-SAR  [  ]  Form  N-CSR

              Form  Period  Ended:  December  31,  2004
                                  -----------------
              [  ]  Transition  Report  on  Form  10-K
              [  ]  Transition  Report  on  Form  20-F
              [  ]  Transition  Report  on  Form  11-K
              [  ]  Transition  Report  on  Form  10-Q
              [  ]  Transition  Report  on  Form  N-SAR
              For  the  Transition  Period Ended: ______________________________

  Read Instruction (on back page) Before Preparing Form.  Please Print of Type.
  =============================================================================
      NOTHING IN THIS FORM SHALL BE CONSTRUED TO IMPLY THAT THE COMMISSION
                  HAS VERIFIED ANY INFORMATION CONTAINED HERE.
  =============================================================================

If  the  notification relates to a portion of the filing checked above, identify
the  Item(s)  to  which  the  notification  relates:

PART  I  -  REGISTRANT  INFORMATION

      Green  Mountain  Power  Corporation
Full  Name  of  Registrant

Former  Name  if  Applicable

      163  Acorn  Lane
Address  of  Principal  Executive  Office  (Street  and  Number)

      Colchester  Vermont  05446
City,  State  and  Zip  Code

PART  II  -  RULE  12B-25(B)  AND  (C)

If  the subject report could not be filed without unreasonable effort or expense
and the registrant seeks relief pursuant to Rule 12b-25(b), the following should
be  completed.  (Check  box  if  appropriate)

(a)  The  reasons  described in reasonable detail in Part III of this form could
not  be  eliminated  without  unreasonable  effort  or  expense;

(b)  The  subject  annual  report, semi-annual report, transition report on Form
10-K,  Form  20-F, Form 11-K, Form N-SAR, or portion thereof will be filed on or
before
[X]      the  fifteenth  calendar  day following the prescribed due date; or the
subject
     quarterly report of transition report on Form 10-Q, or portion thereof will
be  filed on or before the fifth calendar day following the prescribed due date;
and

(c)  The  accountant's statement or other exhibit required by 12b-25(c) has been
attached  if  applicable.



PART  III  -  NARATIVE

State below in reasonable detail why Forms 10-K, 20-F, 11-K, 10-Q, N-SAR, N-CSR,
or  the  transition  report  or  portion  thereof, could not be filed within the
prescribed  time  period.

Green  Mountain Power Corporation (the "Company") is filing this Notification of
Late  Filing on Form 12b-25 to obtain a 15-day extension, from March 16, 2005 to
March  31,  2005,  for filing its Annual Report on Form 10-K for the fiscal year
ended December 31, 2004 (the "Form 10-K").  The preparation of the Form 10-K was
delayed  due  to  management's  identification  of  a  material  weakness in the
Company's  internal  control  over financial reporting relating to the Company's
accounting  for  income taxes.  Management's investigation and reconciliation of
the  affected  accounts has been completed, but preparation of the Form 10-K was
delayed  as  a  result  of  the  investigation.  In addition, because management
devoted  substantial resources toward remedying the identified material weakness
in  the  Company's internal control over financial reporting, management was not
able  to provide all requested information to Deloitte & Touche LLP ("D&T"), the
Company's  independent  registered public accounting firm, in a timely manner to
enable  D&T  to  complete  its  audit  of  the  Company's consolidated financial
statements  as of and for the year ended December 31, 2004 to be included in the
Form  10-K  and  to  complete its audit-related documentation so as to allow the
Company  to  be  able to file its Form 10-K by March 16, 2005.  As a result, the
Company  will  not,  without unreasonable effort or expense, be able to file its
Form  10-K  by  March 16, 2005.  The Company anticipates that it will be able to
file  its  Form  10-K  on  or  before  March  31,  2005.

(Attach  extra  Sheets  if  Needed)

PART  IV  -  OTHER  INFORMATIONS

(1)  Name  and  telephone  number  of  person  to  contact  in  regard  to  this
notification

         Robert  J.  Griffin                        (802)  655-8452
-----------------------------------    ------------------
--------------------
            (Name)                        (Area Code)         (Telephone Number)

(2)  Have  all  other periodic reports required under Section 13 or 15(d) of the
Securities  Exchange  Act of 1934 or Section 30 of the Investment Company Act of
1940  during  the  preceding  12  months  or  for  such  shorter period that the
registrant  was  required  to  file such report(s) been filed?  If answer is no,
identify  report(s).     Yes  [X]   No  [  ]

(3)  Is it anticipated that any significant change in results of operations from
the  corresponding  period  for  the  last  fiscal year will be reflected by the
earnings  statements  to  be  included in the subject report or portion thereof?
Yes  [X]   No  [  ]

If  so,  attach  an  explanation of the anticipated change, both narratively and
quantitatively, and, if appropriate, state the reasons why a reasonable estimate
of  the  results  cannot  be  made.

     On  March  15,  2004, the Company announced 2004 consolidated earnings from
continuing operations of $2.10 per share of common stock, diluted, compared with
consolidated  earnings  from  continuing operations of $2.01 per share of common
stock,  diluted,  for  the  same period in 2003.  The Company's return on equity
from  its  core  utility operations was 10.3 percent, slightly below its allowed
return  on  equity of 10.5 percent.  The Company reported additional earnings of
$0.10  per  share  from  discontinued operations in the current year, reflecting
diminished  risk on litigation related to an inactive subsidiary investment that
led  to  reversal  of  previously  recorded  reserves.

Earnings  from  continuing  operations improved in 2004 primarily as a result of
increased  recognition of revenues deferred under a Vermont Public Service Board
order  described  below, and from growth in retail sales of electricity to large
and  small  commercial  and  industrial customers.  Higher transmission expenses
partially  offset  these  benefits.

The  Company's  2003  Rate Plan, approved by the Vermont Public Service Board in
December 2003, provided for a rate freeze for 2004, and retail rate increases of
1.9  percent  (generating  approximately $4 million in added annual revenues) in
January  2005  and  0.9  percent  (generating  approximately $2 million in added
annual  revenues)  in  January  2006,  upon the submission of supporting cost of
service  schedules.  The  first  of  these  rate  increases has been implemented
effective January 1, 2005.  The 2003 Rate Plan also allowed the Company to carry
unused  deferred  revenue  totaling  approximately  $3.0  million to 2004 and to
recognize  this  revenue  during  2004.

Retail  operating  revenues  for  2004  increased by $4.5 million or 2.3 percent
compared  with 2003, reflecting an increase in electricity sales and an increase
in the recognition of revenues deferred under the December 2003 regulatory order
discussed above.  An improving economy and modest customer growth contributed to
increased  sales.  Total  retail megawatt hour sales of electricity increased by
1.8 percent in 2004, compared with the same period in 2003.  Megawatt hour sales
of  electricity to large and small commercial and industrial customers increased
by  3.3  percent  and  2.0  percent,  respectively,  while  sales to residential
customers  were  flat  when  compared  with  2003, reflecting normal, but milder
weather  conditions  in  2004.  Wholesale  revenues  in  2004 decreased by $56.2
million  compared  with  2003, reflecting reduced sales of electricity to Morgan
Stanley  Capital  Group,  Inc.,  under a contract designed to manage price risks
associated  with  changing  fossil  fuel  prices.  The  reduction  in  wholesale
revenues  did  not adversely affect Company earnings in 2004 and is not expected
to  adversely  affect  future  operating  results.

Power  supply expenses in 2004 decreased $53.3 million compared with 2003 due to
decreased  wholesale sales of electricity, principally those associated with the
Morgan  Stanley  contract.  Power  supply  expenses  also  decreased  due  to an
increase  in  credits  received  by  the  Company  from  auctions  of  financial
transmission  rights  designed  to  make  areas  in  New England with inadequate
transmission  and  generation  pay  a premium for energy delivery.  Power supply
expenses also declined due to reduced expenses to supply an option contract with
Hydro-Quebec.



                        Green Mountain Power Corporation
                 -----------------------------------------------
                  (Name of Registrant as Specified in Charter)

has  caused  this  notification  to  be  signed on its behalf by the undersigned
hereunto  duly  authorized.

Date   March  16,  2005         By  /s/Robert  J.  Griffin
     --------------------         -------------------------------
                                  Robert  J.  Griffin
                                  Vice  President,  Chief  Financial Officer and
Treasurer

INSTRUCTION:  The  form  may be signed by an executive officer of the registrant
or  by  any  other  duly  authorized  representative.  The name and title of the
person signing the form shall be typed or printed beneath the signature.  If the
statement  is signed on behalf of the registrant by an authorized representative
(other than an executive officer), evidence of the representative's authority to
sign  on  behalf  of  the  registrant  shall  be  filed  with  the  form.

                                    ATTENTION

Intentional  misstatements  or  omissions  of  fact  constitute Federal Criminal
Violations  (See  18  U.S.C.  1001).