PG&EAppendix 3

2015 CAES RFOData Room Materials

DATA ROOM MATERIALS

The Data Room is a secure online locationwhereby Participantswill be able to view and download electronic versions of key Project artifacts and/or documents, as long as the Participant has (1) an approved and fully executed Appendix 1, Confidentiality Agreement, and (2) submitted, to PG&E’s satisfaction, the documents and information requested by Appendix 2, Experience, Qualifications and Organization. To assist Participants, PG&E has includeda “Data Room Roadmap” document in the Data Room that describes the structure and contents of the Data Room.

PG&E has gathered a large amount of data relating to the development of a CAES facility. This data will be grouped into key areas and will include the types of information summarized in this Appendix. Because of the large volume of data, Participants are encouraged to take the steps necessary to obtain access to the Data Room as soon as possible – please refer to Section 1.B., subsection 3 of the Protocol for access details.

PG&E DISCLAIMERS REGARDING DATA ROOM MATERIALS. PG&E MAKES NO REPRESENTATION OR WARRANTY OF ANY KIND OR NATURE, EXPRESS OR IMPLIED, WITH RESPECT TO ANY OF THE DOCUMENTS, INFORMATION, AND MATERIALS PROVIDED IN THE DATA ROOM (COLLECTIVELY, “DATA ROOM MATERIALS”) OR TO THE ACCURACY AND COMPLETENESS OF ANY OF THE DATA ROOM MATERIALS.

WITHOUT LIMITING THE FOREGOING, PG&E MAKES NO REPRESENTATION OR WARRANTY OF MERCHANTABILITY, USAGE OR SUITABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE WITH RESPECT TO ANY OF THE DATA ROOM MATERIALS, OR THE ABSENCE OF ANY INACCURACIES THEREIN, ANY SUCH REPRESENTATIONS AND WARRANTIES BEING HEREBY EXPRESSLY DISCLAIMED. FURTHER, NO MATERIAL OR INFORMATION PROVIDED BY OR COMMUNICATIONS BY PG&E OR ITS REPRESENTATIVES TO ANY PARTICIPANT WILL CAUSE OR CREATE ANY WARRANTY, EXPRESS OR IMPLIED, AS TO THE CONDITION OR QUALITY OF ANY OF THE DATA ROOM MATERIALS.

A.Reservoir

Data for the reservoir was gathered and developed in various stages.

1)Geologic reservoir modeling (simulation) and production history matching.

2)An initial phase that included extracting a geological core sample of approximately 180 feet from the caprock and reservoir at the depths targeted for development.

3)Log data from the core well.

4)Laboratory analysis of the mineralogy and other attributes of the core samples.

5)Simulation of the compression testing program.

6)Air injection and withdrawal testing results and updated simulation modeling.

Because the reservoir and the analysis/modeling of the reservoir are important to the success of CAES Project and to the Participant’s Offer, PG&E is releasing the information currently available to allow Participants (should they so choose) to perform their own due diligence and analysis ahead of their submittal of Offers. The following information is included in the Data Room:

1)Reservoir Boundary Maps

2)Exploration and Production History

3)Geological Data & Interpretations

4)Core Wells – History and Data

5)Core Analysis

  1. Mineralogy Reports
  2. Permeability and Porosity
  3. X-Ray Diffraction Results
  4. Stress/Pressure Testing Results
  5. Air Chamber/Mixing Results
  6. Water Analysis
  7. Other Core Data

6)Reservoir Models and Associated Data

7)Oxygen Depleted Air and Ambient Air Injection Testing Simulations

8)Results of the Oxygen Depleted Air and Ambient Air Testing

  1. Injection/Withdrawal Well Logs and Other Related Data
  2. Final Reservoir Technical Reporting including Full Field Development Simulations

B.Viewing Access of the Cores

Participants who have provided to PG&E the requisite Appendix 1 and Appendix 2 will also gain viewing access to the geological cores. After completion of the laboratory analysis, the cores were donated to the California Well Repository System run by the California State University Bakersfield (CSUB). CSUB has agreed to hold (separate from its inventory of geological cores) the actual cores from the subject reservoir obtained as part of this Project. Interested Participants will be able to schedule individual viewings of the cores starting on November 1, 2015. Participants should contact PG&E at to express their interest in viewing the cores, and PG&E will provide Participant’scontact information to CSUB and will notify Participants with contact information to schedule a visit.

In addition to the core material referenced above, four one-foot sections of the cores have been preserved (encased in wax) and currently are held in a non-refrigerated environment. These preserved cores will be made available to the winning Participant for future viewing and/or testing. At the conclusion of this process, the preserved cores will then become part of the CSUB inventory available to the public.

C.Site Control

All relevant site control agreements/rights obtained by PG&E will be assigned to the winning Participant, unless the Participant obtains rights to an alternative site for the Energy Conversion Facility and/or necessary pipelines. Land rights required for theProject (as designated in the documents) will be transferred to the successful Participant via Appendix E2, Assignment Agreement, in concert with Appendix E1, CAES Agreement, as approved by the CPUC. The agreements/rights assigned via Appendix E2, Assignment Agreement, are contained in the Data Roomand set forth the specific terms and conditions upon which a Participant can undertake the Project and acquire various surface and/or subsurface rights required to undertake the Project. The agreements/rights assigned via Appendix E2 also outline any conditions which the Participant must abide by. These agreements/rights assigned via Appendix E2 include:

1)Underground Gas Storage Lease and Agreement

2)Mineral Owner Consent Agreements

3)Oil, Gas and Mineral Leases (which would be surrendered or quitclaimed to clear title)

4)Option Agreement for Purchase of Easement (for compressed air and water pipelines)

5)Options to Lease (for Energy Conversion FacilitySite)

6)Ownership Abstract Report

For interested Participants, PG&E can arrange individual site visits to the Project site during the RFO process. Please contact to schedule an individual site visit.

D.Plant Engineering/Information[1]

PG&E conducted an engineering evaluation of the proposed CAES facility. The engineering analysis was split into two packages: (1) Energy Conversion Facility (ECF); and (2) Air Transmission System. These documents include the following information (not all encompassing):

  1. Energy Conversion Facility
  1. Process Description
  2. Compression Plant Equipment Description
  3. Generation Plant Equipment Description
  4. Water and Wastes
  5. Emissions
  6. ECF Air Emissions
  7. Noise
  8. ECF Auxiliary Services
  9. ECF Electrical System
  10. ECF Control System
  11. Facility Construction
  12. Operations and Maintenance
  13. Appendices
  14. EPC Schedule
  15. Grading Plan
  16. Process Flow Diagrams
  17. Heat and Mass Balances
  18. Water Mass Balances
  19. ECF Air Emissions Estimates
  20. General Arrangement and Elevation
  21. Electrical Single Line
  22. Construction Emissions Estimates
  1. Air Transmission System (including wellpad design)
  1. Design Requirements
  2. Equipment and Components
  3. Piping and Equipment
  4. Electrical System
  5. Instrumentation and Control System
  6. Appendices
  7. Process Flow Diagram, P&ID, and Wellhead Plot Plans
  8. Electric Drawings
  9. Pipeline Crossing Drawings

E.Environmental/Siting Assessment

PG&E conducted an environmental siting, licensing and permitting analysis (ESLPA) for the proposed Project; the information contained in this report provides the Participant with information needed to assess related issues and their impact on both the development and operation of the CAES facility. The information in this report can be utilized to assist the development of the Application for Certification (AFC) at the CEC as well as the development of the Underground Injection Control (UIC) permit application for the U.S. Environmental Protection Agency (EPA) and/or other regulatory agencies.

The following information is included in the ESLPA to support the preparation of the AFC and UIC:

1)Air Quality

2)Biological Resources

3)Cultural Resources

4)Geological Hazards and Resources

5)Hazardous Materials Handling

6)Land Use

7)Noise

8)Paleontological Resources

9)Public Health

10)Socioeconomics

11)Soils

12)Traffic and Transportation

13)Visual Resources

14)Waste Management

15)Water Resources (Note: The UIC well permit is considered a water resources permit and will be discussed under this topic, including a high level analysis of each of the issues delineated in the UIC attachments, such as Area of Review (AOR), Maps of Well/AOR, Corrective Action Plan, etc. The UIC permit will need to cover all injection wells that place fluids (air, produced water or facility wastewater) underground for storage or disposal).

16)Worker Health and Safety

F.Electric Transmission Interconnection

An independent, third-party transmission study was conducted to investigate the potential Network and Direct Assignment Upgrade costs and schedule that would be associated with the electrical interconnection associated with this Project. The results of this study are included in the Data Room; these results are estimates only. Actual upgrades and costs will not be determined until the Project design is selected and the formal CAISO process is completed. See Section X, Electric Interconnection, for more information on the CAISO interconnection process that the winning Participant would be required to adhere to on this item.

G.Gas Transmission

PG&E’s Gas Operation organization provided a Gas Feasibility Analysis of various supply routes/options associated with providing the level of gas service required of a CAES facility. Those alternatives are outlined in the CAES-Lodi Route Feasibility Study, including various routing scenarios, estimated costs and estimated service pressures. The routing scenarios are consistent with the biological and cultural surveys conducted during the base case siting scenario. Specific upgrades and costs will not be determined until the preferred route is selected and studied.

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[1]The information in the Plant Engineering section represents PG&E’s engineering analysis of a proposed location and a specific plant design. Each Participant should review all of the information and make its independent determination on the design and size of the CAES plant they are willing to offer, design, develop, construct, commission, operate, and maintain in response to this RFO. For example, PG&E’s design assumes the use of reclaimed water and a 6-hour compressor re-injection design; the Participant is not bound to those parameters.