™ ® Proton, Proton OnSite, Proton Energy Systems, the Proton design, StableFlow, StableFlow Hydrogen Control System and design, HOGEN, and FuelGen are trademarks or registered trademarks of Proton Energy Systems, Inc. Any other brands and/or names used herein are the property of their respective owners. Long Life PEM Water Electrolysis Stack Experience and Future Directions E. Anderson, K. Ayers, C. Capuano and S. Szymanski Technical Forum Hannover Messe Germany 9 April 2013
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Long Life PEM Water Electrolysis Stack Experience and ... · Long Life PEM Water Electrolysis Stack Experience and Future Directions E. Anderson, K. Ayers, C. Capuano and S. Szymanski
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™ ® Proton, Proton OnSite, Proton Energy Systems, the Proton design, StableFlow, StableFlow Hydrogen Control System and design, HOGEN, and FuelGen are trademarks or registered trademarks of Proton Energy Systems, Inc.
Any other brands and/or names used herein are the property of their respective owners.
Long Life PEM Water Electrolysis Stack Experience and Future Directions
E. Anderson, K. Ayers, C. Capuano and S. Szymanski
H2 Generation Capacity Tradeoffs• Stack capable of current density• Evaluate impact on BoP ratings
− Power buss− Thermal control− Gas drying
• Added cost of lower utilization extra capacity?
23
15%
32%
13%
25%3%
12%53%
Power supplies
Balance of plant
MEA
flow fields and separators
balance of cell
balance of stack
24%
48%
5%
23%
StackSystem
1.4
1.5
1.6
1.7
1.8
1.9
2
2.1
2.2
2.3
2.4
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
Cell Po
tential (Vo
lts)
Current Density (A/cm2)
80˚C, 30 bar H2 Pressure
Current Generation MEANext‐Gen MEA1Next‐Gen MEA2
MW-Scale Product Development Pathway
• Multi-stack architecture– Consistent with H- and C-Series products
• Large active area stack platform– 3X Increase over C-Series stack– Prototype already developed and tested– Advanced design to deliver 40% cost reduction
• Open-frame skid modular plant configuration– Transition from previous
fully-packaged designs• Trade-off Capex vs. efficiency
for specific market applications
Large Active Area PEM
Stack
MW-scale concept
24- Proton OnSite Proprietary and Confidential -
Scale-Up Cost Reduction Trajectory
• Straight-forward engineering scale-up of current products• Critical technology elements already developed
0%
20%
40%
60%
80%
100%
C30 0.5 MW 1 MW 2 MW 2 MW Adv
Perc
ent C
ost R
educ
tion
Electrolysis System Size
25- Proton OnSite Proprietary and Confidential -
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Summary
• Industrial PEM electrolysis systems have excellent reliability track record
• New energy applications will challenge that reliability as technology advancements to drive cost and reliability are adopted
• Technology roadmap is guiding progress and funding of continued development
• Market needs for hydrogen energy storage are emerging rapidly