Renewable Power to Fuels Symposium

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Presentation transcript:

Renewable Power to Fuels Symposium   Panel Discussion : Technologies & Cost Projections Portland, OR May 20, 2019 Madhav Acharya Technology to Market Advisor

Hydrogen – A Clean, Flexible Energy Carrier Source: H2@Scale

Key Considerations to Enable a Hydrogen Economy Cost Emissions Quantity To produce & deliver Requires infrastructure to be on hand Varies by source Varies by source

Hydrogen in Transportation

Improving the Economics of Renewable H2 Source: H2@Scale

Hydrogen for Seasonal Energy Storage

REFUEL: Renewable energy storage and delivery via carbon neutral liquid fuels Synthesis of liquid fuels Fuels transportation Application space Direct use (blending) in ICE vehicles (drop-in fuel) Air Direct use in stationary gensets Medium to long term energy storage Hydrogen generation for fueling stations Water Seasonal energy storage Energy delivery from remote locations Energy delivery from stranded sources Energy storage and delivery combined

Potential “Carbon Neutral” Liquid Fuels B.p., deg C Wt. % H Energy density, kWh/L E0, V , % Synthetic gasoline 69-200 16.0 9.7 - Biodiesel 340-375 14.0 9.2 Methanol 64.7 12.6 4.67 1.18 96.6 Dimethyl ether (DME) -24 13.1 5.36 1.21 Ethanol 78.4 12.0 6.30 1.15 97.0 Formic acid (88%) 100 3.4 2.10 1.45 105.6 Ammonia -33.3 17.8 4.32 1.17 88.7 Hydrazine hydrate 114 8.1 5.40 1.61 100.2 Liquid hydrogen -252.9 2.54 1.23 83.0 Compressed hydrogen (700 bar) gas 1.55 G.Soloveichik, Beilstein J. Nanotechnol. 2014, 5, 1399

= 6 x 40 x or Energy storage comparison Capital cost ~$100K 1,000kg H2 Linde storage in Germany or 40 x 30,000 gallon underground tank contains 200 MWh (plus 600 MMBTU CHP heat Capital cost ~$100K 5 MWh A123 battery in Chile Capital cost $50,000 - 100,000K Liquid fuels provide smallest footprint and CAPEX

Concept for a Pilot Scale ~ 100 kg/day Integrated with existing renewable facility Demonstrate overall system functionality including safety/reliability Detailed cost assessment to inform further scale up H2 Electrolysis Modified reaction Modified separation NH3 H2O Air Separation unit N2 New technology (ARPA-E funded) Commercially available

What is needed to deliver H2@Scale?

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