The Future of Energy Storage · Aquion energy Saltwater Battery Saltwater 100% 2500 0.18 85 48...
Transcript of The Future of Energy Storage · Aquion energy Saltwater Battery Saltwater 100% 2500 0.18 85 48...
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The Future of Energy Storage
By Alvaro Garcia MartinezManaging Director of SREnergy
Wednesday, 12th April 2017
Modern Applications and Latest Developments
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The Kettle
How does the Kettle Relate to Energy Storage?
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Agenda
Part 1 – Our Energy Challenges
Part 2 – Introduction to Energy Storage
Part 3 – How Do Batteries Work
Part 4 – Assessing Current Technology
Part 5 – Basic and Advanced Applications
Part 6 – Summary
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About the Speaker
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Our Energy Challenges
✓ Matching Supply and Demand
✓ Energy Losses
✓ Volatile Renewable Supply
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Matching Supply and Demand
Source: Spanish National Grid 2016
The amount of electricity needs to match exactly the amount of consumption every instant. The challenge is forecasting energy consumption at every second.
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Energy losses
Source: US energy use 2015, Lawrence Livermore national laboratory, 2016
In our current energy mix, more energy is lost in transformation and transmission than used.
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Volatile Renewable Supply
Source: Wind power generation Australia 2015, AEMO 2016
Renewable energy is cheap and plentiful. Unfortunately, we cannot choose when the wind should blowor when the sun should shine.
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Introduction to Energy Storage
✓ Basic Concepts
✓ History of Batteries
✓ Market Landscape
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The Basics of Energy StorageEnergy storage breaks the classic energy supply-demand tie up.
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The History of Batteries
250 BC – 224 AD
1749
1800
1859
1970s
Energy storage has a been a topic of research for hundreds or even thousands of years.
First BatteryBenjamin Franklin
Voltaic PileBaghdad Pile
First Rechargeable Lead Acid Battery
First Lithium Ion Battery
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Modern Batteries
Source: Bloomberg New Energy 2016
Due to resource scarcity and a variety of applications, many battery technologies have been developed. Lithium ion has been the dominant technology due to its energy density, performance and life.
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Market LandscapeEnergy has been a prolific industry since the first electricity grid was established. Nowadays, there are companies working at every level of the supply chain, some of which are world leaders.
Sources Transmission Consumption
WindVestas
Gamesa-SiemensGE
SolarTrinaJinko
Canadian Solar
Other generationAreva
BechtelTotal
National Grid
National companies
UtilitiesEDFEnelEON
IberdrolaDuke Energy
Network Operators
Local companies
Residential
CommercialStorage
Batteries
BYD
Panasonic
AESC
LG Chem
Services
Sonnen
Sharp
Moixa
Other hardware
SMA
Siemens
ABB
Victron
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How Do Batteries Work
✓ Component Description of Lead Acid
✓ Component Description of Lithium Ion
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Component Description - Lead AcidLead acid has been the "go to" technology for electric vehicles and stationary storage, for numerous years.
Source: Saylor Academy 2016
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Component Description - Li ion
BMS
BYD
Lithium ion is already the most popular technology for portable applications. It is already becoming the number one choice for stationary applications.
Source: Saylor Academy 2016
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Power cables:Large → InverterSmall → BMU
Communications cable to any of the two RS485 port
CAN ports H&L
BMU
BATTERY
Important:Set up the correctADDR
Component Description - Li ion
Source: BYD 2017
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Assessing Current Technology
✓ Safety
✓ Performance
✓ Return on Investment
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Safety
Is it safe to have batteries in your home?
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Safety Features of Li Ion Among the various lithium ion chemistries, there are significant differences in runaway temperatures and energy released.
Source: Electropedia, 2005
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Safety Testing
✓ Overdischarge ✓ Short Circuit ✓ Nail Penetration ✓ Short Circuit ✓ Fire Simulating
✓ Overcharge ✓ Oven ✓ Crush ✓ Soaking Simulating ✓ Gas Flaming
Thanks to the expansion into consumer goods and electric mobility, modern batteries go through extensive safety testing and quality control.
Source: BYD 2017
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Performance
What matters when choosing a battery?
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Parameters Impacting Investment
Company Product Chemistry
Depth of
Discharge
(DOD)
Nominal
Lifetime Cycles
C-rate
(kw/kwh)Efficiency Weight/kwh
Tesla (Panasonic) Powerwall 6.4 NMC 100% 3650 0.47 92 15
LG Chemical RESU 6.5 Main Pack NMC 90% 6000 0.6 95 10
Pylon Extra2000 LiFePO4 80% 4000 0.5 92 16
Aquion energy Saltwater Battery Saltwater 100% 2500 0.18 85 48
Narada REXC Lead carbon 80% 3000 0.33 97 38
BAE Gel Secura PVV Solar Lead acid 50% 3000 0.34 80 32
BYD 2.5Kw B-Plus Module LiFePO4 100% 6000 1 97 16
Source: Manufacturer datasheets 2016, Note: Samsung is not in the list as their datasheet doesn´t show separate battery parameters
Battery Selection How to determine the best long-term return
There are several performance factors to take in consideration when choosing the best battery. Some of these will impact investment directly and others will impact your system design.
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Cell (RT and 45℃) Pack (RT and 45℃)
Cell Cycle Life Test:
50Ah, 1C/1C,100%DOD
Cycle Life as a Key DriverOne of the main recent advances in battery technology has been cycle life. Modern lithium ion batteries can work for several decades.
Cycle LifeHighly Accelerated Life Testing (HALT)
Source: BYD 2017
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Cost
What is the true cost of batteries?
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Cost Drivers
Source: Bloomberg New Energy 2016
Thanks to economies of scale (especially related to electric mobility), changes of format and improvements in design and manufacturing lithium ion batteries will continue to decrease price.
Battery Cost ForecastData Based on Survey on Key Manufacturers
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Economies of Scale
Production Capacity and Automation
Main cost and quality driver will be the necessary investment to automatize the manufacturing of cells
Source: Bloomberg New Energy 2016
High quality-low cost battery manufacturing require very large investment in manufacturing equipment and techniques. Therefore, obtaining a large market share will be key to competitiveness.
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Basic and Advanced Applications ✓ Storage at Home
✓ Basic and Advanced Uses
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Storage At Home
Source: BYD 2017
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Basic and Advanced Applications
✓ Renewable Energy deferred generation
✓ Peak/Off-peak consumption
✓ Peak shaving
✓ Frequency response
✓ Demand side response
✓ Cash pull out
✓ Energy sharing
✓ Virtual Energy trading
✓ *Energy saving incentives
Basic Advanced
✓ No access to power supply -off grid
✓ Intermittent power supply -backup
✓ Excess of self generation -Increased self consumption
The reliability, high power output and response time that Lithium ion provides has made it possible to bring in applications of energy storage that can change the electricity landscape.
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Summary
✓ Key Takeaways
✓ Thoughts for the Future
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✓ Energy storage, at any level, is a reality today.
✓ Current performance/cost is sufficient to see the
market develop.
✓ A greater development of advanced business models,
especially grid support services, will trigger
exponential growth.
Summary
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✓ The energy positive house is a reality.
✓ The energy positive community is a reality.
✓ Can we do an energy positive city or country.
✓ How? (HVDC power lines, High efficiency
prefabricated construction...)
Thoughts for the Future
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Thank you. Alvaro Garcia Martinez
Managing Director Storing Renewable Energy
P: (UK) +44 734 190 2891, (ES) +34 639 433 225 E: [email protected] W: www.srenergy.co.uk