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Protocols

Date Report No Title Authors
2014-06PNNL-22010 Rev. 1Protocol for Uniformly Measuring and Expressing the Performance of Energy Storage Systems

Abstract: The "Protocol for Uniformly Measuring and Expressing the Performance of Energy Storage Systems" (PNNL-22010) was first issued in November 2012 as a first step toward providing a foundational basis for developing an initial standard for the uniform measurement and expression of energy storage system (ESS) performance. Its subsequent use in the field and review by the protocol working group and most importantly the users' subgroup and the thermal subgroup has led to the fundamental modifications reflected in this update of the 2012 Protocol.

Conover, D.R.,

Viswanathan, V.V., Crawford, A.J., Ferreira, S., Schoenwald, D.,

2014-06PNNL-23390Determination of Duty Cycle for Energy Storage Systems Integrated with Microgrids

Abstract: This report supplements the report, "Protocol for Uniformly Measuring and Expressing the Performance of Energy Storage Systems," PNNL-22010, Rev. 1, June 2014. It provides the background and documentation associated with the determination of a duty cycle to be applied to an energy storage system (ESS) in a microgrid operated in an islanded mode, for the purpose of measuring and expressing ESS performance in accordance with the June 2014 protocol for measuring and expressing ESS performance.

Conover, D.,

Viswanathan, V., Crawford, A.,

2013-08SAND2013-7084 Report (PDF, 1.5 mb)
SAND2013-7315P Data (XLSX, 892 kb)
Protocol for Uniformly Measuring and Expressing the Performance of Energy Storage Systems

Abstract: The U.S. Department of Energy's Energy Storage Systems (ESS) Program, through the support of Pacific Northwest National Laboratory (PNNL) and Sandia National Laboratories (SNL), facilitated the development of the protocol provided in this report. The focus of the protocol is to provide a uniform way of measuring, quantifying, and reporting the performance of ESSs in various applications; something that does not exist today and, as such, is hampering the consideration and use of this technology in the market. The availability of an application-specific protocol for use in measuring and expressing performance-related metrics of ESSs will allow technology developers, power-grid operators and other end-users to evaluate the performance of energy storage technologies on a uniform and comparable basis. This will help differentiate technologies and products for specific application(s) and provide transparency in how performance is measured. It also will assist utilities and other consumers of ESSs to make more informed decisions as they consider the potential application and use of ESSs, as well as form the basis for documentation that might be required to justify utility investment in such technologies.

Ferreira, S.,

Rose, D., Schoenwald, D., Bray, K., Conover, D., Kintner-Meyer, M., Viswanathan, V.,