|   | (a) | Assessment      of the Energy Production of the Proposed Little Pringle Wind Farm, dated      April 29, 2008, by Garrad Hassan America, Inc., for Higher Perpetual      Energy, LLC (to the extent applicable to  Assignee). |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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|   | (b) | Assessment      of the Energy Production of the Proposed Pringle Wind I & II Wind      Farms, dated June 17, 2008, by Garrad Hassan America, Inc., for Higher      Perpetual Energy, LLC (to the extent applicable to    Assignee). |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (c) | Boundary      Survey dated May 2, 2008 by Dwayne R. Gresham, Gresham & Associates,      Inc., of Pringle Wind I and II, Section 7, Jno M Swisher Survey, &      Section 2, Block M24, T. C. & Ry. Co. Survey, Hutchison County, Texas      (to the extent applicable toAssignee). |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (d) | Boundary      Survey dated September 4, 2007 by Dwayne R. Gresham, Gresham &      Associates, Inc., of Little Pringle Site, Section 1, Block M24, T C &      Ry Co Survey, Hutchison County, Texas (to the extent applicable to      Assignee). |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (e) | Determination      of No Hazard to Air Navigation, concerning Wind Turbine PW II-1 at      Stinnett, TX, issued by the Federal Aviation Administration by letter      dated August 16, 2008 to Higher Power Energy, LLC (Aeronautical Study No.      2008-WTW-2904-OE). |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (f) | Determination      of No Hazard to Air Navigation, concerning Wind Turbine PW II-2 at      Stinnett, TX, issued by the Federal Aviation Administration by letter      dated August 16, 2008 to Higher Power Energy, LLC (Aeronautical Study No.      2008-WTW-2905-OE). |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (g) | Determination      of No Hazard to Air Navigation, concerning Wind Turbine PW II-3 at      Stinnett, TX, issued by the Federal Aviation Administration by letter      dated August 16, 2008 to Higher Power Energy, LLC (Aeronautical Study No.      2008-WTW-2906-OE). |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (h) | Determination      of No Hazard to Air Navigation, concerning Wind Turbine PW II-4 at      Stinnett, TX, issued by the Federal Aviation Administration by letter      dated August 16, 2008 to Higher Power Energy, LLC (Aeronautical Study No.      2008-WTW-2907-OE). |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (i) | Determination      of No Hazard to Air Navigation, concerning Wind Turbine PW II-5 at      Stinnett, TX, issued by the Federal Aviation Administration by letter      dated August 16, 2008 to Higher Power Energy, LLC (Aeronautical Study No.      2008-WTW-2908-OE). |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (j) | Document      “JV_KeyFamilyLease_UnsignedCopy.doc”, a blank form of a lease agreement      between Higher Power Energy, LLC and a landowner (to the extent applicable      to Assignee). |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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|   | (k) | Document      “JV_Generic_NonDisturbanceAgreement.DOC”, a blank form of a Nondisturbance      and Attornment Agreement between a mortgagee and a project company (to the      extent applicable to Assignee). |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (l) | Document      “LP_SPSAvoidedCosts_GeneralNotes.doc”, titled “Subject: Avoided costs-SPS”      (to the extent applicable toAssignee). |
|--------|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (m) | Draft      of Lease between Lance and Sahala Gaillard, as owner, and Higher Power      Energy, LLC, as lessee, for approximately 678 acres of land, with all      exhibits. |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (n) | Draft      of Nondisturbance and Attornment Agreement between Great Plains Ag Credit,      FLCA, and LittlePringle2, LLC. |
|--------|-----|---------------------------------------------------------------------------------------------------------------------------|

|   | (o) | Electrical      One Line Diagram for “Higher Power Energy, LLC; Pringle II - 10 MW Wind      Turbine Generator Project; Hutchison County, Texas”, dated June 26, 2008,      by Richard C. Gross P.E., Inc. |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (p) | Electrical      Substation Conceptual Equipment Plan and Elevations for “Pringle, Texas;      Higher Power Energy LLC; 10 MW Wind Farm”, dated June 26, 2008, by Richard      C. Gross P.E., Inc. (to the extent applicable to  Assignee). |
|--------|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (q) | Feasibility      Study of the Energy Production of the Proposed Big Pringle, Little      Pringle, and H&H Wind Farms in Texas, dated December 21, 2007, by      Garrad Hassan America, Inc., for Higher Perpetual Energy, LLC (to the      extent applicable to Assignee). |
|--------|-----|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (r) | Letter      dated August 20, 2007 from Brittany Seward, Cooley Manion Jones LLP, to      Mark Patkunas and Jeff Martin, with attached Title Search for Little      Pringle (to the extent applicable toAssignee). |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (s) | Letter      from Xcel Energy Services Inc. to the Public Utility Commission of Texas,      dated February 28, 2008, regarding “Project No. 18692 Avoided Cost      Availability of Electric Utility System Cost Data Pursuant to Subst. R.      25.242(e)(2) [formerly Subst. R. 23.66(c)(1)]” with attached update to      Southwestern Public Service Company’s February 15, 2008 informational data      filing pursuant to the Commission’s Substantive Rule 25.242(e)(2),      Availability of Electric Utility System Cost Data (to the extent      applicable to Assignee). |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (t) | Map      “LP_GeographicLayout.bmp” by DeLorme of Little Pringle Wind Farm (to the      extent applicable to Assignee). |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------|

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|   | (u) | Map      “LP_Map.jpg” by DeLorme of Little Pringle Wind Farm (to the extent      applicable to Assignee). |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------|

|   | (v) | Map      “LP_ProposedExpansion.bmp” by DeLorme of Little Pringle Wind Farm (to the      extent applicable to Assignee). |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------|

|   | (w) | Map      “LP1and2_FAA_TurbineLayout.bmp” by DeLorme of Little Pringle Wind Farm (to      the extent applicable to Assignee). |
|--------|-----|------------------------------------------------------------------------------------------------------------------------------------------|

|   | (x) | Map      “LP2_FAA_TurbineLayout.bmp” by DeLorme of Little Pringle Wind      Farm. |
|--------|-----|-----------------------------------------------------------------------------------------------|

|   | (y) | Preliminary      Geotechnical Evaluation: Little Pringle Wind Farm, Hutchinson County,      Texas, Apex Project No. 107-229, dated November 2007, prepared by Apex      Geoscience Inc. for Higher Power Energy, LLC (to the extent applicable to      Assignee). |
|--------|-----|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (z) | Proposed      Wind Power Site: Pringle Wind, Site Reconnaissance and Avian Report, dated      August 26, 2007, prepared by Dr. Richard Harris Podolsky for Higher Power      Energy, LLC (to the extent applicable to  Assignee). |
|--------|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (aa) | Storm      Water Construction General Permit, Texas Commission on Environmental      Quality, Permit No. TXR15MH51, issued to Pringle Wind Farm (project) and      Higher Power Energy, LLC (operator) with coverage effective August 25,      2008 (to the extent applicable toAssignee). |
|--------|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (bb) | Spreadsheet      “JV_OldProjectStatus_Dec07.xls” titled “HPE PROJECT LIST 12/02/2007”      containing data regarding Little Pringle, Palo Duro, and Big Pringle (to      the extent applicable to Assignee). |
|--------|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (cc) | Spreadsheet      “JVProjects_DevelopmentCosts.xls” listing development phase cash flows for      Little Pringle, Big Pringle, and Palo Duro (to the extent applicable to      Assignee). |
|--------|------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (dd) | Spreadsheet      “LP_TypicalDayEnergyProfileForD8.2.xls” containing wind, power, and other      data (to the extent applicable toAssignee). |
|--------|------|---------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (ee) | Suggested      Form of Agreement Between Owner and Design/Builder on the Basis of a      Stipulated Price, between HPE DeWind, a joint venture, as owner, and      Balfour Beatty Wind Group, a joint venture, as design/builder, for Phase      II of the Pringle Wind Farm, with all attached schedules, exhibits,      annexes, and other documentation (including the Escrow      Agreement). |
|--------|------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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|   | (ff) | Any      and all other wind resource data, books and records, contracts, permits,      reports and any other properties, assets and rights of any kind, whether      tangible or intangible, real or personal, owned or hereafter acquired by      Grantor and which are related to the following option or the wind farm to      be developed on the real estate subject to such  option: |
|--------|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|   | (i) | Option      Agreement dated April 11, 2008 between Higher Power Energy, LLC and Lance      and Sahala Gaillard |
|--------|-----|----------------------------------------------------------------------------------------------------------------|

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| ASSIGNOR                 |
|--------------------------|
| PRINGLE      WIND I, LLC |
|                     |   |
| By:                      |   |
|                     |   |
| Name:                    |   |
|                     |   |
| Title:                   |   |
|                     |   |
| ASSIGNEE                 |
| LITTLEPRINGLE2,      LLC |
|                     |   |
| By:                      |   |
|                     |   |
| Name:                    |   |
|                     |   |
| Title:                   |   |

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