PNNL

Abstract

Awarded as part of the fifth round of CEF funding, the Packwood Solar, Storage, and Microgrid (PSSM) project, located in Lewis County, Washington, is a collaborative effort among EN, LCPUD, and Lewis County Emergency Management (LCEM). The project seeks to establish a microgrid by integrating EN's Packwood Hydro with a 1.6 MWac canal-spanning photovoltaic (PV) array and a 1 MW/4 MWh utility-scale battery energy storage system (BESS). This feasibility study will assess the potential economic benefits of integrating hydro generation with the proposed PV and BESS. Pacific Northwest National Laboratory (PNNL) led the techno-economic assessment effort for PSSM, leveraging its advanced modeling and analytical capabilities in hydro hybridization to understand the potential benefits for different grid and end-user services. This report presents a thorough techno-economic assessment, encapsulating use cases, modeling and valuation framework, case studies, and concluding remarks.