for Renewable Power Presented by: Stephen Szymanski Business Development Manager, Proton OnSite August 14, 2012

Transcription

1 ydrogen Energy Storage for Renewable Power Presented by: Stephen Szymanski Business Development Manager, Proton nsite August 14, 2012

2 Proton Energy Systems d/b/a Proton nsite World leader in PEM electrolysis and on-site gas generation solutions ounded in 1996 eadquarters in Wallingford, onnecticut IS 9001:2008 registered ver 1,800 systems operating in 72 different countries 2

3 undamentals of PEM Electrolysis PEM innovators: Grubb & Neidrach, GE Research, 1955 xygen PEM Electrolysis Anode Proton Exchange Membrane Solid Electrolyte athode + - R R f f + S3 S Power Supply Water Water athode PEM uel ell Proton Exchange Membrane Solid Electrolyte Anode Anode xygen + - R R f f + S3 S Electric load ydrogen 3

4 Proton apabilities Electrolyzer ell Stacks Electrolyzer Systems Integrated Solutions omplete product manufacturing & testing ontainerization and hydrogen storage solutions Integration of electrolysis into R systems Turnkey product installation World-wide sales and service Power Plants eat Treating Semiconductors Laboratories Government 4

5 PEM Electrolyzer technology has a long history of reliability in critical military applications: SSN and SSBN oxygen generation for life support Virginia lass Submarine Integrated Low Pressure Electrolyzer Photo courtesy of amilton Sundstrand d Proton cell stack 5

6 PEM Electrolyzers enable rechargeable energy storage systems known as regenerative fuel cells Regenerative uel ell Regenerative uel ell Electrolyzer oxygen D electricity uel ell D electricity D electricity Electrolyzer oxygen air uel ell D electricity hydrogen hydrogen water water losed loop R for air independent applications pen cycle R for non air independent applications 6

7 ERD/ERL Silent amp R System Silent amp system concept provides flexible and scalable energy storage platform for a deployable hybrid power configuration. Silent amp energy storage system installed at ERD/ERL test site 7

8 ther Proton R System Examples hina Lake NAWS off grid backup SRNL grid/renewable system Data center backup power ommercial telecom backup power NASA closed loop system 8

9 ritical Need for Renewable Energy Storage: Renewable energy is growing rapidly world-wide in both wind and solar. The inherent intermittency of these renewable technologies has more of an impact as they become a larger portion of the grid capacity. Many generation technologies are chasing solutions for storing excess renewable capacity and balancing these loads on the grid. 9

10 ommercial Energy Storage ptions ompressed air Mature technology, inexpensive, large scale Limited in ability to site, based on geological features Pumped hydro Mature technology, inexpensive, large scale Limited geographic applicability Batteries Good round trip efficiency Poor cycle life and high cost at high capacity Scale limitations and permitting for hazardous waste 10

11 ydrogen as a Storage Medium Electrolysis is well suited to load following Stable performance over 60, hours of operation Rapid response time to current signal 3.0 Proton Energy Systems In-ouse ell Stack Endurance Testing Average ell l Potential (Volts, 50 o ) cell stack 200 psig (13 barg) 1200 AS (1.3 A/cm 2 ) 4 µv/cell hr Decay Rate ,000 20,000 30,000 40,000 50,000 60,000 perating Time (ours) 11

12 R s versus Batteries: Battery storage capacity typically <10 hours. ydrogen storage easily expandable with inexpensive tanks. Batteries limited in number of cycles. Electrolyzers l unlimited it in cycles. Both technologies have cost challenges. Electrolyzers have advantage of fuel cell scalup. Large scale battery technology largely unproven. Electrolysis has been around for over 100 years. Battery volumetric and specific energy density is poor. ydrogen can provide compact and lightweight energy storage. 12

13 Wind apture Technology ost Analysis Sandia public report: SAND

14 awaii: An Ideal ase Study for ydrogen igh percentage of renewables and good mix of resources igh electricity costs and transmission issues Large difference between peak and base loads Unique opportunity for deployment and validation of new technologies for energy storage 14

15 Proton is providing hydrogen fuel for the fleet of DoD V s on the island of ahu Schofield Barracks 65 kg/day production Q Kane ohe Bay 13 kg/day production Q JBP 65 kg/day production March

16 DE/NR funded project on Big Island: Proton 30 electrolyzer providing critical frequency regulation DE Annual Merit Review,

17 A urrent (A rms) NREL Grid Stabilization Study* 50 A mini-grid PEM Electrolyzer Approach Add or remove load to dstabilize diesel generator-based A mini-grid Trigger electrolyzer when frequency deviation reaches z or 60.5 z Electrolyzer commanded to either shed or add load to stabilize A grid by regulating frequency Results PEM electrolyzer triggered at 60.5 z to add 10 kw load during an over- frequency event PEM electrolyzer triggered at 59.5 z to subtract 10 kw 59 PEM Grid-Tied: Stack Step 25% to 100% ~150 ms response 4 3 Tr rigger Level (V V) load in an under- frequency event Rstabilization of grid achieved in less than 1 sec urrent Trigger Time (sec) *ourtesy of K arrison, NREL, 2011 Large loads & varied trigger points can be use to optimize response req quency (z) req quency (z) LB 10-0kW PEM 30kW LB 10-0kW PEM 30-40kW Time (sec) 61 LB 0-10kW PEM 40kW LB 0-10kW PEM 40-30kW Time (sec) Red line Without PEM Load Gold line With PEM load 17

18 Summary/onclusions ydrogen will serve a significant role in energy storage and frequency regulation for DoD renewable energy deployment. Microgrids for installations Peak shaving and load shifting ritical load backup Transportation fuel for specialty and commercial vehicles PEM electrolysis technology is at an advanced commercial level and is readily adapted to the emerging energy markets. Proven reliability and established commercial base ost competitive for industrial markets ommercial pathways established for energy and fueling applications. 18

19 Acknowledgments: Proton appreciates the sponsorship and support of these agency partners, and is actively seeking additional collaboration opportunities for the transition to commercial deployment in both defense and civilian applications. 19