Exhibit 10.2.1.7

                                WAIVER AGREEMENT


             THIS WAIVER AGREEMENT (this  "Agreement") is entered into as of the
9th day of June, 2006, by and among CALPINE CONSTRUCTION FINANCE COMPANY,  L.P.,
a Delaware  limited  partnership (the  "Borrower"),  CALPINE  HERMISTON,  LLC, a
Delaware  limited  liability  company  ("Calpine  LLC"),  CPN HERMISTON,  LLC, a
Delaware limited liability company ("CPN LLC"), and HERMISTON POWER PARTNERSHIP,
an Oregon general  partnership (the "Hermiston  Partnership"  and, together with
Calpine  LLC and CPN LLC,  the  "Guarantors"),  the  lenders  party  hereto (the
"Lenders"),  and GOLDMAN SACHS CREDIT  PARTNERS  L.P., as  administrative  agent
(together with its successors in such capacity, the "Administrative Agent").

                                    RECITALS

             WHEREAS,   the  Borrower,   the   Guarantors,   the  Lenders,   the
Administrative  Agent  and the Sole  Lead  Arranger  entered  into a Credit  and
Guarantee  Agreement,  dated as of August 14, 2003 (as amended on September  12,
2003, January 13, 2004, March 5, 2004, and March 15, 2006, and as may be further
amended  from  time to time,  the  "Credit  Agreement"),  pursuant  to which the
Borrower borrowed, on a non-recourse basis as described in the Credit Agreement,
$385,000,000  in aggregate  principal  amount of First  Priority  Senior Secured
Institutional Term Loans due 2009 (the "Term Loans");

             WHEREAS, on December 20, 2005, Calpine Corporation  ("Calpine") and
certain  of  its  controlled  subsidiaries,  including,  among  others,  Calpine
Operating  Services  Company,  Inc. and Calpine Energy Services,  L.P.  ("CES"),
filed a voluntary  proceeding  for relief under  Chapter 11 of the United States
Bankruptcy  Code  with the  United  States  Bankruptcy  Court  for the  Southern
District of New York (the "Proceeding");

             WHEREAS,   CES,  the   Borrower  and  certain  of  the   Borrower's
subsidiaries  are  parties  to the  Index  Based  Gas  Sale and  Power  Purchase
Agreement dated as of August 14, 2003, as amended (the "PPA"), pursuant to which
the Borrower purchases natural gas from CES for its power generating facilities,
and CES purchases power generated by the facilities from the Borrower;

             WHEREAS,  on  November  1,  2005,  as  permitted  under the  Credit
Agreement,  the Borrower used net proceeds of approximately  $212.0 million from
the sale of one of its  facilities to make a prepayment to CES for gas under the
PPA (the "Gas Prepay Transaction");

             WHEREAS,  ordinarily under the PPA, the cost of gas consumed by the
Borrower's  facilities  is offset  against  the cost of power  generated  by the
facilities,  with CES paying the Borrower only the net amount due, such payments
generally being made on the 25th of each month for services  provided during the
prior month; however, due to the Gas Prepay Transaction, CES was obligated for a
period of time to pay the full cost for the power under the PPA, without offset,
which  resulted in larger than usual  payments  owing to the Borrower  under the
PPA;




             WHEREAS,  CES failed to timely make a number of  payments  owing to
the  Borrower  under the PPA,  including  in  respect of gas  deliveries  during
February 2006, approximately $18.5 million due on March 27, 2006 (the "March PPA
Payment" );

             WHEREAS,  the  failure by CES to timely  make the March PPA Payment
constitutes  an Event of Default  under the  Credit  Agreement  (the  "March PPA
Payment Default");

             WHEREAS, the Borrower has failed to timely provide to the Lenders a
financial report for the periods ended December 31, 2005 and March 31, 2006 (the
"Financial  Reports")  as required  to be  provided to them  pursuant to Section
5.01(a) of the Credit Agreement;

             WHEREAS,  the  failure  by  the  Borrower  to  timely  provide  the
Financial Reports  constitutes a Default (the "Reporting Default, " and together
with the March PPA Payment Default, the "Specified Defaults");

             WHEREAS, pursuant to a waiver request, commenced as of June 6, 2006
and completed as of June 9, 2006 (the "Waiver Request"),  the Borrower has asked
the Lenders to waive the Specified Defaults; and

             WHEREAS,  the Lenders,  on the terms and subject to the  conditions
hereinafter provided, are willing to waive the Specified Defaults.

             NOW  THEREFORE,  in  consideration  of the  premises and the mutual
agreements  set  forth,   the  receipt  and  sufficiency  of  which  are  hereby
acknowledged, the parties hereto hereby agree as follows:

             1. Definitions.  Unless otherwise defined herein, capitalized terms
used herein that are not  otherwise  defined  herein  shall have the  respective
meanings assigned to such terms in the Credit Agreement

             2. Waiver.

                (a)  Upon  satisfaction of the conditions set forth in Section 3
of this  Agreement,  the  Lenders,  pursuant to the terms of Section 7.04 of the
Credit  Agreement,  hereby waive  application of Sections 7.01(d) and 7.01(i) of
the Credit  Agreement  (the  "Waiver")  solely to the extent  applicable  to the
Specified  Defaults,  such Waiver being  effective on the first date that all of
the  conditions  set  forth in  Section  3 of this  Agreement  shall  have  been
satisfied (the "Waiver Effective Date").

                (b)  Except  for  the  Waiver  expressly  set  forth   above  in
subsection (a), the Administrative  Agent and the Lenders reserve each and every
right and  remedy  they may have  under the Credit  Agreement  and the  Security
Documents (the "Term Loan  Documents") and under  applicable law with respect to
any Default or Event of Default.

             3. Conditions.  The  effectiveness of Section 2(a)of this Agreement
is subject to the  satisfaction of the following  conditions  precedent  (unless
specifically waived in writing by the Requisite Lenders):


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                (a)  the Borrower and the Guarantors named as signatories hereto
and  the   Requisite   Lenders   shall  have   executed  and  delivered  to  the
Administrative Agent their respective counterparts of this Agreement;

                (b)  the Borrower shall have paid to the  Administrative  Agent,
in cash or other immediately  available funds,  reimbursement of all outstanding
fees and expenses of the  Administrative  Agent owing under Section 13.02 of the
Credit  Agreement  as well as all other fees owing to the  Administrative  Agent
arising under this Agreement, the Credit Agreement or any other agreement; and

                (c)  a  waiver  agreement  (in  form  and  substance  reasonably
acceptable to the  Administrative  Agent) with the Holders of Notes (the "Waiver
Under  Indenture")  shall  have  been  negotiated  and  shall  become  effective
concurrently with this Agreement, provided, that any conditions to effectiveness
or consideration made available to the Holders of Notes for such agreement shall
be made available to the  Administrative  Agent and the Lenders as conditions to
effectiveness of, or as consideration for, this Agreement.

             4. The PPA.  Notwithstanding the occurrence of the Waiver Effective
Date,  this Waiver shall cease to be effective if (i) the Borrower,  the Lenders
and the  Administrative  Agent  (if  required  under  the terms of the Term Loan
Documents) shall not have reached agreement regarding the assumption, whether on
amended terms or otherwise,  of the PPA in the Proceeding on or before August 4,
2006 or (ii) the  Borrower  shall not have  delivered to the  financial  advisor
specified in Section  11(b) below,  subject to execution of an  appropriate  and
mutually agreed upon  confidentiality  agreement,  on or prior to June 19, 2006,
the analysis of cash flows for the Borrower's  facilities under the PPA prepared
by PA Consulting Group, Inc.

             5. Representations and Warranties.  The Borrower and each Guarantor
hereby represents and warrants to each Lender and the Administrative  Agent that
(a) this  Agreement  has been duly  authorized,  executed  and  delivered by the
Borrower or Guarantor,  as  applicable,  and  constitutes  its valid and legally
binding obligation, enforceable against it in accordance with its terms, subject
to bankruptcy, insolvency, fraudulent transfer,  reorganization,  moratorium and
similar laws of  generally  applicability  relating to or  affecting  creditors'
rights and to general equity principles;  (b) the execution and delivery of this
Agreement (i) does not require any consent, approval, authorization or order of,
or filing with,  any  governmental  agency or body or any court,  except such as
have  been  obtained  or made and are in full  force  and  effect as of the date
hereof  and (ii)  will not  violate  any  applicable  law or  regulation  or the
charter, by-laws or other organizational documents of the Borrower or Guarantor,
as  applicable,  or any order of any  governmental  agency or body, or breach or
conflict  with any material  agreement to which the  Borrower or  Guarantor,  as
applicable,  is a party or by which the Borrower or Guarantor, as applicable, is
bound; and (c) except for the Specified Defaults, no Default or Event of Default
under the Credit Agreement exists and is continuing.

             6. Execution in Counterparts. This Agreement may be executed in any
number of counterparts and by different parties hereto in separate counterparts,
each of which when so executed and  delivered  shall be deemed to be an original
and all of which  when  taken  together  shall  constitute  but one and the same
instrument.


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             7. Continuing Effect of the Credit Agreement.  Except as  expressly
set forth herein,  this Agreement  shall not by implication or otherwise  limit,
impair,  constitute a waiver of, or otherwise  affect the rights and remedies of
the Lenders, the Administrative  Agent, the Borrower or the Guarantors under the
Credit Agreement and shall not alter,  modify, amend or in any way affect any of
the terms,  conditions,  obligations,  covenants or agreements  contained in the
Credit  Agreement,  all of which are  ratified  and affirmed in all respects and
shall  continue  in full force and  effect.  Nothing  herein  shall be deemed to
entitle the Borrowers or the Guarantors to a consent to, or a waiver, amendment,
modification  or other  change of, any of the  terms,  conditions,  obligations,
covenants  or  agreements  contained  in the  Credit  Agreement  in  similar  or
different  circumstances.  This Agreement shall apply and be effective only with
respect to the  provisions  of the Credit  Agreement  specifically  referred  to
herein.  After the Waiver  Effective Date, any reference to the Credit Agreement
shall mean the Credit Agreement as amended and modified hereby.

             8. Applicable Law. This Agreement and the rights and obligations of
the parties  hereunder shall be governed by, and shall be construed and enforced
in accordance with, the laws of the State of New York without regard to conflict
of laws principles thereof.

             9. Headings. Headings herein are include herein for  convenience of
reference  only and shall not  constitute a part hereof for any other purpose or
be given any substantive effect.

            10. Administrative  Agent's  Expense.  Without limiting  any  of the
Administrative  Agent's  rights,  or  any of the  Borrower's  obligations  under
Section 13.02 of the Credit  Agreement,  the Borrower  hereby agrees to promptly
reimburse the Administrative  Agent for all reasonable  out-of-pocket  expenses,
including, without limitation, attorneys' and paralegals fees, it has heretofore
or hereafter incurred or incurs in connection with the preparation,  negotiation
and execution of this Agreement or any document, instrument, agreement delivered
pursuant to this Agreement.

            11. Legal Expenses; Financial Advisor.

                (a) Without limiting  any of the Administrative  Agent's rights,
or any  of  the  Borrower's  obligations  under,  Section  13.02  of the  Credit
Agreement,  the Borrower hereby agrees to promptly  reimburse to the Lenders and
the Administrative  Agent all reasonable attorney and paralegal fees and related
expenses of Latham & Watkins LLP relating to (i) analysis of issues  relating to
the PPA,  including  the analysis  done by PA Consulting  Group,  Inc.,  and the
impact  of the  PPA on the  Borrower's  business  and  (ii)  the  assumption  or
rejection  of the PPA in the  Proceeding  and any matters  related  thereto that
affect the rights of the  Lenders or the  Administrative  Agent under the Credit
Agreement.

                (b) In addition  to the rights  provided in paragraph (a) above,
the  Borrower  shall cause to be provided  to the  Administrative  Agent and the
Lenders  the work  product of the  financial  advisor to be engaged  pursuant to
Section 2.5 of the Waiver Under  Indenture in the same manner as provided to the
holders of the Notes.

            12. Proof of Claim.  The  Borrower  shall  include  in its proof  of
claim against CES in the Proceeding, the amount of the unpaid March PPA Payment.


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            13. Preservation of  Prior Representations. Notwithstanding anything
herein   to   the   contrary,   all   agreements,   admissions,    affirmations,
representations,  ratifications  and releases by the Borrower and each Guarantor
made in the Waiver  Agreement dated March 15, 2006,  including,  but not limited
to, those in Sections 6 and 8 thereof, are expressly confirmed and preserved.



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IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed
and delivered by their respective  officers  thereunto duly authorized as of the
date first written above.

                                 CALPINE CONSTRUCTION FINANCE COMPANY, L.P.


                                 By:      /s/ Charles B. Clark, Jr.
                                     -------------------------------------------
                                     Name:  Charles B. Clark
                                     Title: Chief Financial Officer



                                 CALPINE HERMISTON, LLC


                                 By:      /s/ Charles B. Clark, Jr.
                                     -------------------------------------------
                                     Name:  Charles B. Clark
                                     Title: Chief Financial Officer



                                 CPN HERMISTON, LLC


                                 By:      /s/ Charles B. Clark, Jr.
                                     -------------------------------------------
                                     Name:  Charles B. Clark
                                     Title: Chief Financial Officer



                                 HERMISTON POWER PARTNERSHIP


                                 By:      /s/ Charles B. Clark, Jr.
                                     -------------------------------------------
                                     Name:  Charles B. Clark
                                     Title: Chief Financial Officer



                                 GOLDMAN SACHS CREDIT PARTNERS L.P.,
                                 as Administrative Agent, Sole Lead Arranger,
                                 Syndication Agent and a Lender


                                 By:        /s/ Stephen King
                                     -------------------------------------------
                                     Name:  Stephen King
                                     Title: Authorized Signatory


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                                              CONSENTING LENDER:


                                 -----------------------------------------------

                                 By:
                                     -------------------------------------------


                                     Name:


                                     Title:



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