1. Recent developments in the design and applications of a utility-scale energy storage plant;Price;Proceedings of the Electrical Energy Storage Systems Applications and Technologies International Conference 2000,2000
2. Schoenung S (2001) Characteristics and technologies for long- vs. short-term energy storage. Sandia National Laboratories. Report SAND2001-0765. March 2001.
3. Economics of Integrated Renewables and Hydrogen Storage Systems in Distributed Generation;Herr,2002
4. Butler P, Miller J, and Taylor P (2002) Energy storage opportunities analysis. Phase II final report: A study for the DOE energy storage systems program. Sandia Report SAND2002-1314. Unlimited Release. May 2002.