This page last reviewed August 14, 2013
Potential New Compliance Offset Protocol Mine Methane Capture (MMC) Projects
The potential new Compliance Offset Protocol Mine Methane Capture (MMC) Projects will provide methods for quantifying reductions in methane emissions from mines. There are two key sources of methane from active mining: ventilation air methane (VAM) and methane released from drainage systems. VAM is dilute methane that is vented through mine ventilation shafts. Drainage, or degasification, systems serve to remove and collect methane through vertical and horizontal wells before, during, and after mining. Emission reductions will be achieved through methane capture and use or destruction.
All reductions must be fully documented and accurately quantified. ARB is considering using both metering and modeling to quantify capture of eligible methane. Projects would be allowed throughout the United States. ARB is considering three project types: 1) active underground mines, 2) abandoned underground mines, and 3) active surface mines. The potential protocol will provide methods to quantify and report greenhouse gas (GHG) emission reductions associated with the installation or operation of a device or set of devices associated with the capture and destruction of methane gas that would otherwise be vented into the atmosphere as a result of mining activities.
The Offset Project Operator or Authorized Project Designee would be required to use this protocol to quantify and report GHG emission reductions. The protocol would provide eligibility rules, methods to quantify GHG emission reductions, offset project monitoring instructions, and procedures for preparing Offset Project Data Reports. All offset projects would be required to submit to independent verification by ARB-accredited verification bodies. Regulatory requirements for verification of Offset Project Data Reports will be provided in the Cap-and-Trade Regulation.
This protocol will be designed to ensure the complete, consistent, transparent, accurate, and conservative quantification of GHG emission reductions associated with an MMC project. The protocol will be comprised of both quantification methodologies and regulatory program requirements to develop an MMC project for generating ARB offset credits.
ARB conducted a workshop on March 28, 2013 discussing protocol requirements, eligibility, and timeframe. Workshop materials can be found at: http://www.arb.ca.gov/cc/capandtrade/meetings/meetings.htm.
Technical Working Group Materials:May 3, 2013 Technical Working Group Meeting Materials
May 21, 2013 Technical Working Group Meeting Materials
June 17, 2013 Technical Working Group Meeting Materials
July 10, 2013 Technical Working Group Meeting Materials
August 19, 2013 Workshop Materials:Discussion Draft of Proposed Compliance Offset Protocol Mine Methane Capture Projects