Guide for Economic Evaluation of Electrochemical Energy Storage Station

This standard, DL/T 2919-2025, issued by the National Energy Administration of China, provides a comprehensive guide for the economic evaluation of electrochemical energy storage stations. It covers general provisions, terms, basic requirements, financial evaluation, national economic evaluation, economic comparison of project options, and economic evaluation parameters. The financial evaluation section details benefit and cost estimation, evaluation methods and indexes, statements and conclusions, uncertainty and risk analysis, and analysis of economic value added. The standard aims to standardize the economic assessment process for energy storage projects, supporting informed decision-making in the new energy industry. It was developed by leading institutions including China Electric Power Planning & Engineering Institute Co., Ltd., with input from various power design institutes and state grid corporations, reflecting extensive industry consultation and practical investigation.