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UniEnergy Technologies Vanadium Flow Battery-Energy Storage

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Uni.System™,A Breakthrough Vanadium Flow Battery for Grid-Scale Applications. Research at the Pacific Northwest National Laboratory (PNNL), plus the availability of commercial - "off the shelf" - components, has allowed the reliable vanadium flow battery energy storage system to be containerized, produced in volume, and available for onsite and large grid applications.

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UniEnergy Technologies Vanadium Flow Battery-Energy Storage

  1. 1. January 2014 Uni.System™, A Breakthrough Vanadium Flow Battery for Grid-Scale Applications Charles R. Toca Utility Savings & Refund LLC (949) 474-0511 x203 ctoca@utility-savings.com
  2. 2. ©2014 UniEnergy Technologies, LLC. All rights reserved.2 UET’s Breakthrough Vanadium Flow Battery  New electrolyte originating at Pacific Northwest National Laboratory (PNNL), now commercialized with significantly improved stability and nearly doubled energy density  Large-scale battery stacks, with 7 years of field deployments and sustainably operable at 2X power density  Much wider temperature and other allowable operation conditions, with improved reliability and efficiency  State-of-art controls, improving performance and minimizing maintenance  Highly integrated, modular and scalable system packaging
  3. 3. 3 UET’s Field-Rugged Storage Product: 125kWAC;400kWh  Factory integration precision assembly & QC  Excellent safety no thermal runaway  Temperature agnostic -40 °C to +50 °C  SOC agnostic full capacity access  Plug & play rapid deployment  97% availability no stripping etc. required  20-year design life Unlimited cycles  100% recyclable disposal contract included ©2014 UniEnergy Technologies, LLC. All rights reserved.
  4. 4. ©2014 UniEnergy Technologies, LLC. All rights reserved.4 UET’s Modular Uni.System™, 1MWAC  Systems scalable to multiple MW’s  Operational flexibility – 0.8ms Battery Response, 50ms System Response  Grid interconnection ready power interface and controls
  5. 5. Example: Substation Deployment – circa 2014  1 MW; 3.2 MWh Uni.SystemTM  Multiple Uses  T&D Support  Resource Services  Renewables Integration  Utility Substation  12kV Interconnect 5 ©2014 UniEnergy Technologies, LLC. All rights reserved.
  6. 6. ©2014 UniEnergy Technologies, LLC. All rights reserved. Representative Data for 1 MWAC Uni.System 6 Power (peak) 125 kWDC Container 1 MWAC Uni.System Max energy capacity 460 kWhDC 3.2 MWhAC Usable SOC 100% continuous # of Stacks 3 24 Electrolyte 23m3 184m3 Response time Battery <10 ms System <100 ms DC Efficiency 75 – 80%DC 75 – 80%DC AC Efficiency - 65 –70%AC Voltage 188 VDC 4kV – 14kV3ɸAC ±10% Voltage range 135 – 250 VDC 465-1000 VDC* Power Factor - User-controlled : ±0.8 Design Life 20 years Cycle Life unlimited cycles over the 20 year life Ambient Temp -40°C to 50°C ** Envelope 8’W x 20’D x 9½’H 2.4 x 6.1 x 2.9 m 41’W x 52’D x 9½’H 12.5 x 15.9 x 2.9 m Footprint 160 ft2 [15m2] 2,132 ft2 [199m2] Weight 39 t 340 t * 465VDC minimum string voltage allows for a battery bypass within a string for n+1 redundancy ** active cooling option available for extended operation above 35°C ambient
  7. 7. ©2014 UniEnergy Technologies, LLC. All rights reserved. UET’s Global Technology Partners 7 RONGKE POWER Battery Cell Stack Production Electrolyte Production New Electrolyte Development
  8. 8. ©2014 UniEnergy Technologies, LLC. All rights reserved. Field-Deployed Systems (Rongke Power) 8 # Year Projects Applications Power Energy 1 2008 China Electric Power Res. Inst. Distributed energy storage 100kW 200kWh 2 2008 Tibet Electric Energy Res. Inst. PV integration 5kW 50kWh 3 2009 Green Residential House Off grid storage 3.5kW 50kWh 4 2010 Green Office Building Off grid storage 60kW 300kWh 5 2010 EV Charging Station Peaking capacity, power quality 60kW 600kWh 6 2010 Telecom Station Remote Area Power Supply 3.5kW 54kWh 7 2011 Island Keeper House Off grid storage 10kW 200kWh 8 2011 Telecom Station Remote Area Power Supply 3.5kW 48kWh 9 2011 Ningxia Electric Power Group Off grid storage 3.5kW 14kWh 10 2012 Wind Turbine Supplier Smart microgrid storage 200kW 800kWh 11 2013 Wind Farm near Shenyang Wind smoothing 5MW 10MWh 12 2013 Wind Farm Wind smoothing 3MW 6MWh TOTALS 8.5MW 18.3MWh Rongke Power has built the most powerful and mature electrode stack in the world. Integration with UET’s electrolyte technology and packaging yields a highly compelling MW-class energy storage solution.
  9. 9. ©2014 UniEnergy Technologies, LLC. All rights reserved.9 Technology Comparison Technology Degradation %/yr Footprint, System level Safety O&M AC-AC Efficiency Operational Flexibility Scalability UET Adv-VFB 0% + 2-3% of CAPEX 65-70% + + NaNiCl 5-8% 3-5% of CAPEX 60-75% LION LFP Hi end 4-6% 2-3% of CAPEX 80-85% LION LFP Low end 5-7% 3-4% of CAPEX 75-80% LION LTO 2-4% 2-3% of CAPEX 85-90% A-PbA 10-25% 3-6% of CAPEX 65-75% NAS 6-10% 3-5% of CAPEX 60-75% VFB 0% 3-5% of CAPEX 55-65% Non-Flow systems add cells to scale power and energy capacity, with multiple-100K’s of cells for larger systems. UET scales to 10-100 MW, 20-400 MWh for transmission scale projects.

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