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Advancing Power-to-Gas Technology for a Carbon-Free Future

Learn about Hitachi Zosen Inova's Power-to-Gas initiatives, benefits, challenges in the US, and policies/regulations that can drive its adoption.

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Advancing Power-to-Gas Technology for a Carbon-Free Future

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  1. Hitachi Zosen InovaEtogas GmbH Xuping Li, Ph.D. Senior Analyst, Energy Systems and Technologies California Public Utilities Commission (CPUC) workshop May 24, 2019, San Francisco, CA • What does it take for power-to-gas to happen? Confidential

  2. Hitachi Zosen Corporation’s 2030 Visionto enable a Carbon Free Economy Hitachi Zosen Corporation (Hitz) is committed to a Carbon Free Economy Thermal and biological EfWprocesses AD, gas upgrading, and other sustainable waste management technologies Renewable H2 & CH4: Power-to-Gas, SOFC Offshore wind power, etc. 2013: Hitachi Zosen Inova (HZI) Etogasbuilt the largest Power-to-Gas plant for Audi in Germany (6.3MW) 2017: HZI Etogaswon the first Power-to-Gas project in Japan

  3. Power-to-Gas Benefits Renewable Electricity H2 Electrolysis Methanation Gas Grid & Gas Storage CH4 H2 H2 Industry Transport Power plants Heat • Enables sector coupling and decarbonization of gas grid • Seasonal and long-term energy storage using existing or new gas grid • Carbon recycling for gas power or other plants with renewable CH4 • Zero/near zero emission transport fuel and industrial fuel or feedstock • Green H2 & CH4 enable deep GHG emission reduction

  4. Other Countries or Regions are ahead on Hydrogen Injection Limits For SB100 power-to-gas will be needed for 100% zero carbon electricity

  5. Hawaii already has 10%-15% H2 in its gas grid • Demonstrated safe operation with this level of H2 blending • Washington state: SB 5588 • Gives utilities authority to produceand distribute H2 • Gives utilities authority to provide RNG and H2 for end use as a transport fuel • Oregon: SB 98 • Requires Public Utility Commission to adopt by rule renewable natural gas program for utilities • Both power-to-H2 and power-to-methane are included States in the U.S. that are ahead of California

  6. Lack of access to the gas grid • Lack of appropriate pipeline injection standards • Gap between renewable gas cost & fossil gas price • Lack of incentive for closing the gap for renewable gas • Lack of a gas de-carbonization strategy • States such as CA and Hawaii has zero carbon electricity goals • No official goals for gas grid yet • Lack of access to surplus renewable power • Lack of access to electricity price at near production rate • Lack of long term and low risk incentives on marketing renewable gas • H2 and methane from renewable electricity is not yet recognized under the renewable fuel standard (RFS) program • The uncertainty of programs such as RFS and LCFS makes it hard to finance projects • H2 and methane from renewable electricity is not yet recognized for energy storage procurement Why is power-to-gas not happening in CA and U.S.?

  7. Renewable Gas Standards: • Develop and implement a renewable gas standard for gas grid (RGS) • Create feed-in tariffs for renewable gas (H2 & CH4), similar to renewable electricity • Create Hydrogen injection standards that represent the best practice • Transportation and industry sectors: • Require zero/near zero emissions for hard to electrify sectors including heavy transportation and certain industrial sectors (e.g.: cement, steel, plastic, fertilizer, etc.) • Electricity rates: • Provide access to surplus renewable power (full or partial exemption from grid fees, taxes & levies) for PtG • Provide access to energy storage and grid service market for PtG • Modify or streamline existing policies and regulations • Federal RFS • LCFS • Other incentives (e.g., Cap & Trade offset, Q45 tax credit, toxic emission reduction credits) Policies and regulations that could help

  8. Power-to-gas market conditions are promising despite immediate challenges • Renewable electricity price keeps coming down and available in greater areas • New initiatives in mandated renewable gas procurement • New public and private investment in zero and near zero emission cars, vans, buses, trucks, ships, etc. • Increasing public awareness of and acceptance to PtG • Environmental credits such as LCFS credits and RINs are increasingly accessible • Well designed policies and regulations can accelerate PtG deployment 2017_11_1 HZI ETOGAS PtG Introduction BEWO

  9. Thank you for your attention!

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