Eastside System Energy Storage Alternatives Screening Study

Puget Sound Energy (PSE) is evaluating several possible solutions to meet reliability needs identified in PSE’s Eastside transmission system located in Central King County (the Eastside) as part of PSE’s annual comprehensive reliability assessment. PSE commissioned Strategen Consulting, LLC (Strategen) to assess one of those prospective solutions: the feasibility of using energy storage – combined with other previously identified cost-effective non-wires alternatives – to meet the reliability need.