Drawing_10001_Rev01.pdf

The document is a single-line conceptual layout diagram for a Battery Energy Storage System (BESS) for the City of Pasadena/Pasadena Water and Power (PWP), located at the Glenarm Power Plant. The diagram illustrates the electrical infrastructure, including a 35 kV circuit, new breakers (101 and 102 A), a GSU transformer, and multiple battery inverters and auxiliary loads. The project involves a 25 MW lithium-ion battery storage system with a minimum four-hour storage capability, with the diagram delineating the areas of responsibility between the City of Pasadena and the Project Developer/Construction Contractor.

The proposed Energy Storage Agreement (ESA) seeks a private entity to develop, operate, and potentially sell the BESS to the City under a minimum 15-year contract. The solicitation includes options for the City to purchase the BESS at the Commercial Operation Date (COD), as well as in Years Two and Five after COD. The diagram specifically shows the point of connection and the breakdown of battery inverters (two) and auxiliary loads (two), highlighting the technical complexity of the proposed energy storage solution within PWP's existing electrical infrastructure.