CO2NNEX(R) Digital Platform for Transfer and Management of e-Methane Clean Gas Certificates to Be Utilized in Nagaoka Methanation Demonstration
TOKYO, September 11, 2025 – (JCN Newswire via SeaPRwire.com) – INPEX Corporation (INPEX), Osaka Gas Co., Ltd. (Osaka Gas), and Mitsubishi Heavy Industries, Ltd. (MHI) today announced an agreement to implement the city gas industry’s first system for transfer and management of Clean Gas Certificates to certify the environmental value(2) of e-methane, which is being developed by Osaka Gas and MHI using the CO2NNEX®(1) digital platform, for a project being jointly conducted by INPEX and Osaka Gas aimed at developing practical technology for the reduction and effective utilization of CO2 emissions by using one of the world’s largest methanation systems (hereinafter, the “Nagaoka Methanation Demonstration”)(3).In the Nagaoka Methanation Demonstration, hydrogen (H2) and CO2 recovered from the Koshijihara Plant at the INPEX Nagaoka Field Office (Nagaoka City, Niigata Prefecture) will be used to produce e-methane, which will be injected into INPEX’s natural gas pipeline and delivered to customers in an effort to …