2009
DOI: 10.2172/974396
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Design & development fo a 20-MW flywheel-based frequency regulation power plant : a study for the DOE Energy Storage Systems program.

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Cited by 6 publications
(4 citation statements)
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“…The flywheel is a turnkey system, with a dc-dc converter stepping the voltage to 480V dc, followed by a bi-directional inverter and a transformer for conversion to 115 kV ac. This was a significant increase from the estimated $10-$12 million reported earlier (Rounds and Peek 2008). The estimated cost for a 250 kWh TSI flywheels system was $200/kWh, and was $165/kWh for a 1 MWH system, with the cost inclusive of the motor/generator cost for charging and discharging the flywheel.…”
Section: A53 Flywheels Capital and Oandm Costsmentioning
confidence: 80%
“…The flywheel is a turnkey system, with a dc-dc converter stepping the voltage to 480V dc, followed by a bi-directional inverter and a transformer for conversion to 115 kV ac. This was a significant increase from the estimated $10-$12 million reported earlier (Rounds and Peek 2008). The estimated cost for a 250 kWh TSI flywheels system was $200/kWh, and was $165/kWh for a 1 MWH system, with the cost inclusive of the motor/generator cost for charging and discharging the flywheel.…”
Section: A53 Flywheels Capital and Oandm Costsmentioning
confidence: 80%
“…104 This corresponds to $1,000/kW for the system excluding installation costs. This was a significant increase from the estimated $10-to-12 million reported earlier (Rounds and Peek 2008). The estimated cost for a 250-kWh TSI Flywheels system was $200/kWh, and for a 1-MWh system was $165/kWh, with the cost inclusive of the motor/generator cost for charging and discharging the flywheel.…”
Section: Flywheelsmentioning
confidence: 81%
“…The estimated cost for a 250-kWh TSI Flywheels system was $200/kWh, and for a 1-MWh system was $165/kWh, with the cost inclusive of the motor/generator cost for charging and discharging the flywheel. These estimates were based on current carbon fiber prices and are mainly sensitive to the energy content of the system because of the > 1-h charge discharge periods (Rounds and Peek 2008). The Velkess flywheels have a flexible rotor and a passive magnet, with lower associated construction cost.…”
Section: Flywheelsmentioning
confidence: 99%
“…Wind System [7] 4. FES data [50][51][52] Nominal output rating: Up to 100 kW Usable energy at full charge: 200 kWh…”
Section: Appendixmentioning
confidence: 99%