Investment Estimation and Financial Evaluation for Independent Energy Storage Power Stations

This document provides guidelines for the economic evaluation of electric energy storage projects, focusing on investment estimation and financial analysis. It establishes a systematic evaluation framework covering revenue streams such as renewable energy consumption, ancillary services, and electricity fee management. The document applies to new and expanded energy storage projects, excluding household and pumped storage hydropower. Key principles include combining quantitative and qualitative analysis, dynamic and static analysis, and conducting sensitivity analysis. It details revenue calculations for peak shaving (up to 0.5 yuan/kWh), frequency regulation (up to 12/MW), and leasing services (e.g., 200 yuan/kWh·year in Henan). A case study of a 400MW storage power station illustrates application modes like frequency regulation, peak shaving, wind-solar-storage coordination, and demand-side response. The document also references policies from Gansu and Jilin provinces, including capacity leasing prices and compensation for ancillary services, aiming to support investors, operators, and regulators in making informed decisions.