• Renewable Natural Gas


    I. R. 13-02-008 - Phase 3

    II. Dairy Biomethane Pilot Projects



    I. R. 13-02-008 – Phase 3

    More information coming soon…

    Upcoming Schedule


    June 11, 2018

    9am- 1pm


    California Council on Science and Technology presents: Biomethane Report


    CPUC HQ - Golden Gate Room

    505 Van Ness Ave, San Francisco, California, 94102


    Call In Number: (866) 632 5615

    Passcode: 899 8926#


    WebEx Details

    Meeting number: 719 691 889

    Meeting password: !Energy1

    WebEx link: Click here


    • 5 minutes CCST Introduction
    • 45 minutes Heating Values (HV)
    • 30 minutes HV Q&A
    • 20 minutes Siloxanes
    • 20 minutes Siloxanes Q&A
    • 30 minutes Alternatives to Upgrading and/or Pipeline Injection
    • 30 minutes Alternatives Q&A


    Biomethane Summary Report

    Biomethane Report

    For more information

    Workshop Slides

    July 5, 2018

    Please Subscribe to the Service List! (see "More in this Section" to the Right)


    Scoping Memo

    Comments on Scoping Memo Due - July 27, 2018

    Reply Comments on Scoping Memo Due - August 31, 2018


    November 11, 2018


    Ruling Issued

    Comments Due December 7

    Reply Comments Due December 21


    January 22, 2019


    Proposed Decision

    Comments due Monday, Feb. 11

    Reply Comments due Monday, Feb 18     


    April 12, 2019


    Alternate Proposed Decision


    May 23 and 24, 2019





    To Consider a Standard Renewable Natural Gas Interconnection Tariff and an Inquiry into Standards Required to Inject and Interconnect Renewable Methane and Hydrogen Projects


    Location:  CPUC Auditorium
                    505 Van Ness Ave, San Francisco

    Start time: 10am

    Call in Number: Thursday, May 23 -
    866-632-5615 passcode 899-8926#

    Call in Number: Friday, May 24 - 866-632-6544 passcode 198-3535#

    Webcast - http://www.adminmonitor.com/ca/cpuc/ 



    Thursday, May 23 – Agenda 


    10am - Safety Presentation & Introduction

    What have we learned about interconnecting new renewable natural gas projects to the pipeline system so far?

    10:20am Dairy Biomethane Pilot Projects - DVO, Inc – Bill Graham / Maas Energy – Daryl Maas / CalBio – Neil Black + Q&A

    10:50am Examples with PG&E – Chris Fan / SoCalGas - Mike Emerson / SWGas – Michael Cooper + Q&A

    11:25am EBMUD – John Hake / City of Fresno - Director of Fresno Public Utilities, Michael Carbajal  / DGS – Teri Rohrer / LA Sanitation District - Mark McDannel   + Q&A

    (~12:30am) LUNCH (1 hour)


    Renewable Natural Gas Project Interconnection 101: What are the steps involved with evaluating a new renewable natural gas project applying to interconnect to the natural gas pipeline system?

    1:30pm JOINT PRESENTATION - PG&E / SoCalGas / SWGas – Renewable Natural Gas Interconnection Process 101

    Part 1 – How does a new renewable natural gas project developer interconnect to the utility pipeline system?

      General Information

      Information Intake

      Capacity Study

      Preliminary and Detailed Engineering Designs

      Construction and Interconnection to the Pipeline

      • Q&A

    Stretch Break


    Part 2 - A renewable natural gas product is flowing into the utility pipeline……Now What?

      On-Going Gas Quality Monitoring/ Testing

      Point of Receipt Maintenance

      On-Going Renewable Natural Gas Scheduling and Balancing

      • Q&A

    (Estimated) 4:15pm Next Steps

    Friday, May 24 – Agenda 

    What standards should apply to interconnecting and authorizing the injection of renewable methane and renewable hydrogen projects into the natural gas pipeline system? What additional information, if any, is needed in order to develop and finalize these standards?


    10am Safety Presentation & Introduction


    10:15am Agencies Present – How did we get here and why are injection standards important to develop now? 

      California Energy Commission – Phil Cazel

      California Air Resources Board – Gerhard Achtelik



      10:45am The Art of the Possible & Lessons Learned from University of California Irvine’s Pilot Project – Dr. Jeff Reed

      • Q&A


      11:25 am PG&E / SoCalGas / SWGas Presentations – Renewable Methane, Hydrogen, Preliminary thoughts on Blending

      • What do we know, what do we need to know, how are we going to get there?
      • Q&A


      LUNCH (1 hour)


    [Estimated] 1:45pm Industry updates: Clean Energy Systems – Josh Perron / GTI - Andrew Kramer / Mitsubishi Hitachi Power Systems Americas - Peter J. Sawicki / Hitachi - Xuping Li, Ph.D. / Additional speakers 

      • Q&A


      [Estimated] 3:15pm Next Steps






    II. Dairy Biomethane Pilot Projects

    SB 1383 requires the CPUC to direct gas corporations to implement not less than five dairy biomethane pilot projects to demonstrate interconnection to the common carrier pipeline system. CPUC consulted with CARB and CDFA on the development of R.17-06-015, the Dairy Biomethane Pilot Rulemaking, for the selection and implementation of these pilot projects.

    The CPUC adopted the Decision 17-12-004, Establishing Implementation and Selection Framework to Implement the Dairy Biomethane Pilots Required by Senate Bill 1383,  at the December 14, 2017 Commission meeting. http://docs.cpuc.ca.gov/SearchRes.aspx?docformat=ALL&DocID=201352373

    The solicitation for applications is expected to be released in early spring 2018, with applications due in the summer. The pilot program rules ensure that the projects will not result in an increase of criteria pollutants or toxic air contaminant emissions in the air basin where the project is located.

    An interagency Selection Committee consisting of CPUC, CARB, and CDFA, will choose the pilot projects. These pilot projects (which will process manure using anaerobic digestion and produce useable methane gas) are part of the state's efforts to reduce emissions of short-lived climate pollutants, including reducing methane emissions 40% by 2030. The program's data reporting requirements will generate information that allows the agencies to evaluate these projects.

    Link to Decision 17-12-004, December 14, 2017  


    Dairy Biomethane Pilot Projects - Upcoming Schedule

     Brief Presentation

     January 5, 2018  


    California Dairy and Livestock Greenhouse Gas Reduction Working Group

    Time:  1:00 PM to 4:00 PM

    Location:  Byron Sher Auditorium

    Cal/EPA Building

    1001 I Street, Sacramento, CA  95814


    for remote access and call-in details

    Presentation Slide 

     Draft Request for Proposal (RFP) Received by CPUC


    January 18, 2018


     a. Draft Request for Proposal

     b. Draft Project Scoping and Estimation Tool

     c. Press Release

     d. CDFA announces extension of Grant Application Deadline for the 2018 Dairy Digester Research and Development Program




    Webinar/Workshop on RFP

     Jan. 31, 2018

    SB 1383 Dairy Pilot Project Workshop/Webinar Wed, Jan  31, 2018 1:00 PM - 3:00 PM PST

     Wednesday, 1:00 to 3:00 p.m.

     California Department of Food and Agriculture

     Room 101

     2800 Gateway Oaks Dr.,

     Sacramento, CA 95833 

     Please join my meeting from your computer, tablet or smartphone.


     You can also dial in using your phone.

     United States: +1 (224) 501-3412

     Access Code: 584-652-581



    1. Agenda

    2. CPUC

    3. Utilities

      Feb. 5, 2018

     Interested Parties to file Comments on the Draft Solicitation


       See Section 5.3 of draft solicitation

       Comments must be served to the D. 17-12-004 Service List

       For information on serving to a service list, please contact CPUC Public Advisor:


    Comments Received

    Mass Energy Works
    Leadership Counsel for Justice & Accountability
    Bloom Energy Inc
    SoCalGas SDGE
    California Bioenergy
    DVO Inc

    For information on the Service List: https://ia.cpuc.ca.gov/servicelists/sl_index.htm  

      Feb. 15, 2018  

     Final Draft Solicitation shall be turned into the Commission, served on the service list, and posted here

    Final Draft Solicitation

      Feb. 23, 2018

       Feb. 12, 2018


     Interested Parties to file Reply Comments on the Draft Solicitation

       See Section 5.3 of draft solicitation

       Comments must be served to the D. 17-12-004 Service List

       For information on serving to a service list, please contact CPUC Public Advisor:


    For information on the Service List: https://ia.cpuc.ca.gov/servicelists/sl_index.htm

    Reply Comments
    SoCalGas & SDG&E


      March 7, 2018  
    On or about March 7, 2018

    Selection Committee will issue Final Solicitation


    Cost Estimator 

      June 12, 2018

     Q&A about the SB 1383 Pilot Solicitation

    Q1 . Resolution and Guidance on Greenhouse Gas Emissions Calculations for Pilot Projects

    Q2. Updated Application Submission Process For Large Files  

      September 7, 2018  

    The Selection Committee submits 8 pilot projects to the Short List for further review.  The Selection Committee anticipates that the selection process will be completed in 2018.

      December 3, 2018  

    Press Release

    Selection Committee Score Card Summary 



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