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Exhibit 4.75

Recording requested byand when recorded mail to:

Latham & Watkins LLPAttn: Jason Crowell, Esq.600
West Broadway, Suite 1800 San Diego, CA 92101

|R.P.T.T.: $-0-
|--------------

QUITCLAIM DEED

THE UNDERSIGNED GRANTOR DECLARES:

FOR A VALUABLE CONSIDERATION, receipt of which is hereby
acknowledged, NEVADA GEOTHERMAL POWER INC., a corporation registered in
British Columbia (NGP) hereby REMISES, RELEASES and FOREVER QUITCLAIMS to
NGP BLUE MOUNTAIN I LLC, a Delaware limited liability company (NGPI),
all its interest in that certain real property (the Property) situated in the
County of Humboldt, State of Nevada and more particularly described in Exhibit A
attached hereto.

[SIGNATURES APPEAR ON THE FOLLOWING PAGE]



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The undersigned has executed this Quitclaim Deed as of
September _20_, 2007.

GRANTOR:

| | NEVADA GEOTHERMAL POWER INC.,               
| | --------------------------------------------
| | a corporation registered in British Columbia
| |                                             
| | By:
      /s/ Andrew Studley                
| |                                             
| | Name: Andrew Studley                        
| |                                             
| | Title: Chief Financial Officer              

ACKNOWLEDGMENT

PROVINCE OF BRITISH COLUMBIACITY OF VANCOUVER

This Amendment to Geothermal
Lease Agreement was acknowledged before me on _____September
20_______________, 2007, by __Andrew Studley________________, a duly
authorized officer of Nevada Geothermal Power Inc.

|______Gregory Smith___________________  
|----------------------------------------
|NOTARY PUBLIC in and for the Province of
|British Columbia                        

GREGORY C. SMITH
      BARRISTER & SOLICITOR
      ROBSON COURT
      1000-840 HOWE
      STREET
      VANCOUVER, B.C V6C 2M1
      (604) 687-2242


(Print or stamp name of Notary)My Commission
Expires: __does not expire_________________-

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EXHIBIT A

|1. | All right, title and interest in water rights contained
      in that certain Division of Water Resources Permit No. 72978 issued to
      Nevada Geothermal Power Inc., a corporation registered in British
      Columbia, and Nevada Land and Resource Company, LLC, a Delaware limited
      liability company, on September 8th, 2006.    
|-- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|   |                                                                                                                                                                                                                                                                                                                                                
|   | Water to be diverted from: SE1/4 NW1/4 of Section 1,
      T36N, R34E, M.D.B.&M. or at a point from which the NW corner of said
      Section 1 bears N 58°2326E, 4553.0 feet, Humboldt County,
  Nevada.                                                                                                                                    
|   |                                                                                                                                                                                                                                                                                                                                                
|   | Place of use of water: NE1/4 NW1/4 of Section 23, T36N,
      R34E, M.D.B.&M., Humboldt County, Nevada                                                                                                                                                                                                                                         
|   |                                                                                                                                                                                                                                                                                                                                                
|2. | All right, title and interest in water rights contained
      in that certain Division of Water Resources Permit No. 73541 issued to
      Nevada Geothermal Power Inc., a corporation registered in British
      Columbia, and Nevada Land and Resource Company, LLC, a Delaware limited
      liability company, on September 8th, 2006.    
|   |                                                                                                                                                                                                                                                                                                                                                
|   | Water to be diverted from: SE1/4 NW1/4 of Section 1,
      T36N, R34E, M.D.B.&M. or at a point from which the NW corner of said
      Section 1 bears N 65°2705E, 3601.0 feet, Humboldt County,
  Nevada.                                                                                                                                    
|   |                                                                                                                                                                                                                                                                                                                                                
|   | Place of use of water: NE1/4 NW1/4 of Section 23, T36N,
      R34E, M.D.B.&M., Humboldt County, Nevada                                                                                                                                                                                                                                         
|   |                                                                                                                                                                                                                                                                                                                                                
|3. | All the right, title and interest in water rights
      contained in that certain Division of Water Resources Permit No. 73542
      issued to Nevada Geothermal Power Inc., a corporation registered in
      British Columbia, and Nevada Land and Resource Company, LLC, a Delaware
      limited liability company, on September 8th, 2006.
|   |                                                                                                                                                                                                                                                                                                                                                
|   | Water to be diverted from: Lot 2 of Section 1, T36N,
      R34E, M.D.B.&M. or at a point from which the NE corner of said Section
      1 bears N 73°2617E, 2984.00 feet, Humboldt County, Nevada.                                                                                                                                           
|   |                                                                                                                                                                                                                                                                                                                                                
|   | Place of use of water: NE1/4 NW1/4 of Section 23, T36N,
      R34E, M.D.B.&M., Humboldt County, Nevada                                                                                                                                                                                                                                         

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|4. | All the right, title and interest in water rights
      contained in that certain Division of Water Resources Permit No. 73543
      issued to Nevada Geothermal Power Inc., a corporation registered in
      British Columbia, and Nevada Land and Resource Company, LLC, a Delaware
      limited liability company, on September 8th, 2006.
|-- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|   |                                                                                                                                                                                                                                                                                                                                                
|   | Water to be diverted from: Lot 2 of Section 1, T36N,
      R34E, M.D.B.&M. or at a point from which the NE corner of said Section
      1 bears N 85°1224E, 2265.00 feet, Humboldt County, Nevada.                                                                                                                                           
|   |                                                                                                                                                                                                                                                                                                                                                
|   | Place of use of water: NE1/4 NW1/4 of Section 23, T36N,
      R34E, M.D.B.&M., Humboldt County, Nevada                                                                                                                                                                                                                                         

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