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Title: Market Analysis of Emerging Electric Energy Storage Systems
Publication Number: DOE/NETL-2008/1330
Publication Date: 07/2008
Publication Type: Report/Publication
Contact: Phil DiPietro
Program/Technology: Other
Author: Dr. Jay Apt (CMU)
Peter C. Balash (NETL)
Dr. Ruhul Walawalkar (CMU)
Synopsis:

This project investigates the economics of two emerging electric energy storage (EES) technologies: sodium sulfur (NaS) batteries and flywheels in the NYISO electricity markets and the PJM Interconnection (PJM). The analysis indicates that for the base case scenario there is over a 98% probability that a NaS battery will have a negative Net Present Value (NPV) in both NYISO and PJM; whereas flywheel systems show a 100% probability of positive NPV. Current policies allow emerging EES technologies to participate in energy markets for capturing energy arbitrage opportunities, but regulatory changes can reduce financial and regulatory uncertainty for EES.

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