implementation of storage with renewables – industry status · implementation of storage with...
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Implementation of Storage with Renewables – Industry Status
First International Renewable Energy Storage Conference (IRES I)
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Electricity Storage Association
Formerly the Energy Storage AssociationTrade Association with 60+ members from three continentsUtilities, suppliers of energy storage equipment and services, research institutionsMission: To promote the development and commercialization of competitive and reliable electricity storage delivery systems …
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Battery technologies
Conventional batteriese.g. Lead-acid, Ni-Cd,
Ni-MH
Removewater Lithium batteries
e.g. Li-ion, Li-polymer,Li-metal polymer, Li-S
Addheat
High-temperature batteriese.g. Na-S, Na-NiCl2
Separate powerfrom energy
Flow batteriese.g. Vanadium redox, Zn-Br
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Non-battery technologies
Flywheels (conventional & high-speed)Electric double-layer capacitors
Super / ultra capacitorsSymmetric / asymmetric
Large-scale storagePumped hydroCompressed air (CAES)
Superconducting magnetic (SMES)
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Application issues
Power vs. energyHigh-power, short-duration dischargesHigh-energy, long-duration discharges
ScalabilitykW MWkWh MWh
Cycling capabilityElectricalThermal
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kW ←
Pow
er →
MW
kWh ← Energy → MWh
Power, Energy & Scale
SMES EDLC/flywheel
Conventional
Flow
NAS
Seconds Minutes
Hours
Lithium
Approximate information. Installed systems as of mid-2006.
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Power & energy with wind power
Seconds of dischargeSmoothing of wind output
Minutes of dischargeLoad followingRamping controlBridging to conventional generation
Hours of dischargeDispatch and commitment
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Battery storage systems in action
Several examples of technical success storiesWide application spectrum
Seconds / minutes / hours
Many are also commercially viable,or close to being so
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Seconds, minutes & hours - Utsira
Norsk Hydro projectEnercon wind turbinesSeconds of storage
Enercon flywheel
Minutes of storageSaft Ni-Cd battery
Hours of storageElectrolyzerFuel cellHydrogen ICE generator
Source: Norsk Hydro
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Seconds – Hawaii “ESA”
Hawaii Electric Co conceptElectronic Shock Absorber
S&C Electric demonstration project
Lalamilo wind farm40 x 100 kVA wind turbines2 x 250 kVA converters
Ultracapacitor storageMaxwell & Epcos
Stabilizes grid frequencyLocal reactive power support
Source: S&C Electric
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Frequency problems in weak grids
Source: S&C Electric / HECO
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Minutes – remote power grids
Isolated grids with diesel powerSolar power station
Allows diesels to be turned off
Short-duration battery system
100’s kW / 5 minutesSmoothes solar outputBridges to diesels
Source: Solar Systems Pty Ltd
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Hours – Sorne Hill wind farm
Tapbury Management32 MW wind farm
VRB Power flow battery1.5 MW / 12 MWhPossible expansion to add 50 MWh
EconomicsBetter prices for conditioned powerAvoiding curtailment
Source: VRB Power
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Hours – Subaru project, Hokkaido
Tomomae wind farm30.6 MW rated output
VRB demonstration system
Sumitomo / J-Power4 MW / 6 MWh
NEDO funding to optimize control strategy
Source: J-Power
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Hours – Hachijojima Island
TEPCO demonstrationNEDO sponsored500 kW wind turbine400 kW NGK NAS battery
Largest NAS battery installed to date
Hitachi parts plant8 MW / 7 hours
Source: NGK Insulators
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Weeks – Iowa Stored Energy Park
Iowa Association of Municipal Utilities25 to 200 MW wind generationCAES system
Underground aquifer storage of compressed air and natural gas200 MW x 8 hours, 30 to 45 days
Estimated to be on-line in 2011
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Gathering momentum…
Installation of storage with renewables is accelerating
Demonstration systems‘Low-hanging fruit’
More installations help lower costsBringing more installations
The technology is ready…
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Overcoming barriers
Barriers still existGovernment subsidiesRegulatoryTariff-basedCultural
The storage industry must work with all parties to overcome these barriers
GovernmentsRegulatorsUtilitiesOperators
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For further information…
Any questions:[email protected]
Electricity Storage Associationwww.electricitystorage.org(includes links to ESA member companies)