UL 9540, the Standard for Energy Storage Systems and Equipment, covers electrical, electrochemical, mechanical and other types of energy storage technologies for systems intended to supply electrical energy. This document is meant to be used as a customizable template for federal government agencies seeking to procure lithium-ion battery energy storage systems (BESS). Agencies are encouraged to add, remove, edit, and/or change any of the template language to fit the needs and requirements of the. This energy storage technical specification template is intended to provide a common reference guideline for different stakeholders involved in the development or deployment of energy storage products and projects connected at the distribution level. The following are key standards that shall be followed. Helping to minimize energy costs, it delivers standard conformity, scalable configuration, and peace of mind in a fully self-contained solution. The battery system contains. The lead author for this document is Lisa M. Benson, Strativia, under contract to the Standards Coordination Office of NIST.