Long Duration Energy Storage – Flexible, Safe and Low-Cost Richard Phillips April 4, 2017
Brazil Energy Trends • Significant growth forecasted in electricity demand • Several large hydro plants are being constructed mainly in the North but delayed in debate over environmental and social impacts. • Severe drought impacts hydro power production • Lack of access to reliable electricity in the remote areas • Overall issues with grid reliability • High electricity tariffs, high peak period charges • High environmental sensitivity / fragile ecosystems •
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Market Needs – Energy Storage Requirements
Transmission & Distribution capital deferral Increase penetration of renewables, by smoothing / time shifting output Commercial/Industrial customers, peak energy arbitrage, demand shaving, back-up power Off-grid clean, reliable & safe energy Environmentally Friendly
Low cost, time shift 2-6 hour duration 4 hours duration, daily cycles, 20+ year life
3-5 hours duration, site behind-the-meter, multiple use cases, revenue stacking > 6 hours duration, micro-grid renewables + flexible storage
Non-toxic, non-flammable, recyclable, robust in hot environments
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Market Needs – Energy Storage Requirements Market Needs • Transmission & Distribution capital deferral • Renewables smoothing / time shifting • Commercial/Industrial customer energy cost management
• Off-grid clean, reliable & safe energy • Environmentally friendly
Energy Storage Requirements • Low cost, time shift 2-6 hour duration • > 4 hours duration, daily cycles, 20+ year life • Site behind-the-meter, multiple use cases, revenue stacking • > 6 hours duration, isolated micro-grid renewables + flexible storage
• Non-toxic, non-flammable, recyclable, robust in hot environments 4
http://www.essinc.com/
4/12/2017
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Iron Flow Battery - Inherent Advantages • Low cost abundant electrolyte materials • Best Battery Safety & Toxicity Profile • No Degradation Over Time & Cycles
Membrane
Negative Electrolyte
Positive Electrolyte
• Cost Effective Long Duration (8 hrs nominal) • Low capital cost required for manufacturing process 4/12/2017
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Low Cost Our patented battery design combines plentiful and extremely cost effective materials with an innovative cell design that dramatically increases power density and enables a smaller, less costly power stack.
Iron
Salt
Water
It is Safe Non-toxic, non-hazardous, non-flammable, completely recyclable, and functions without degradation up to 50 degrees C. The IFB sets a high bar for safe, reliable and environmentally conscious energy storage.
Iron
Salt 4/12/2017
Water 8
Flexible and High Performance ESS IFB is guaranteed to 20,000 cycles, at over 80% depth of discharge, during a 25year life, with minimal maintenance.
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INTEGRATED ENERGY STORAGE SYSTEM
Energy Warehouse TM + + + + +
Flexible building block Turnkey design for fast installation Inverter & Power Electronics included Nominal Power: 50kW Capacity at nominal power: 8 hours (400kWh) + Can be shipped dry and hydrated on site.
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Purchases for the System • Equipment (ie batteries, inverter) • Site preparation • Transportation • Disposal
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Operation & Maintenance • Labor to service system • Services used (ie Internet) • Materials used
đ??śđ?‘Žđ?‘?đ??¸đ?‘Ľ + đ?‘‚&đ?‘€ đ?‘˜đ?‘Šâ„Ž Useable energy • Accounts for capacity fade • Usable State of Charge • Round trip efficiency
4/12/2017 4/12/2017
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LCOS calculated for renewable integration
Superior Value and Safety
+ 6 hours of storage, 1 cycle per day + 25 year of operation
LCOS ($/kWh)
$0.49 $0.34 $0.25
$0.19
$0.17
$0.15 $0.10
Pb-Acid
NaS
LTO
NMC
Zn Flow
VRB
ESS 2016
$0.06
ESS 2018
Safety
More Safe
2 Less Safe
0 1
3 COR
3
2 2
W
3
2 W
0
2 3
2 W
0 0
2 cor
0 2
3 cor
0
2 cor
0 0
2 cor
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DELIVERING ON THE PROMISE OF ENERGY STORAGE
ESS, Inc. 17898 SW Upper Boones Ferry Rd Portland, OR USA 97224 www.ESSinc.com +1.855.423.9920
Richard Phillips for Bill Sproull VP Business Development wrsproull@essinc.com