Job Description
Company Overview: GridStor is a rapidly growing, grid-scale energy storage developer, owner and operator backed by Goldman Sachs Asset Management (“GSAM”) and led by experienced clean energy industry professionals. We acquire and develop battery storage projects in markets across North America. GridStor’s mission is to accelerate the transition to a carbon-free, resilient grid by rapidly deploying stand-alone energy storage at scale. GridStor is based in Portland, Oregon, and offers competitive compensation and a wide selection of benefits including unlimited paid time off. Read more about life at GridStor at: https://gridstor.com/careers/ Role Summary: GridStor is seeking a Director or Sr. Manager of Transmission & Interconnection to support the development and execution of grid-scale battery storage projects across the WECC region. This role will lead and manage interconnection strategy, execution, and technical analysis associated with generator interconnection processes across utilities and ISOs. The ideal candidate will combine technical expertise in transmission planning and interconnection with strong communication and stakeholder management skills, enabling them to translate complex technical findings into actionable development strategies. The successful candidate will collaborate closely with development, EPC, commercial, regulatory, and executive leadership teams to ensure successful project execution from greenfield siting through interconnection, construction, and operations. This role provides a unique opportunity to shape the interconnection strategy for one of the fastest-growing battery storage developers in the U.S. The successful candidate will work closely with senior leadership to help accelerate the deployment of grid-scale storage projects and strengthen GridStor’s presence across the WECC region. Key Responsibilities: Interconnection Project Execution Manage the preparation and submission of generator interconnection requests across WECC utilities and ISOs for standalone battery energy storage projects. Coordinate the development of interconnection application packages, including engineering data, single line diagrams, modeling assumptions, and security postings. Independently manage consultants to ensure timely completion of study deliverables and technical packages required throughout the interconnection process. Greenfield Site Evaluation Support development teams in identifying commercially attractive greenfield project sites by analyzing transmission node characteristics, substation expandability and topology, transmission congestion and deliverability, proximity to potential offtakers, and interconnection feasibility and schedule risks. Interconnection Study Analysis Review and analyze interconnection studies to evaluate project feasibility, network upgrade costs, transmission constraints, schedule impacts. Develop clear internal summaries and decision-support materials highlighting risks, mitigation strategies, and development implications. M&A and Project Due Diligence Support acquisition diligence by evaluating interconnection risk for early-stage and late-stage projects. Utilize resources such as OASIS/OATI data, ISO filings, consultant analysis, and system planning reports to identify fatal flaws and mitigation strategies. Cross-Functional Coordination Work closely with development, EPC, engineering, and project management teams to ensure alignment on project timelines, deliverables, and interconnection milestones. Facilitate clear information flow between technical and non-technical teams to support project decision-making. Construction & Late-Stage Project Support Coordinate with EPC partners, utilities, and consultants to support successful execution of interconnection milestones during construction. Monitor deliverables such as modeling updates, design packages, and commissioning requirements. Industry Engagement Participate in ISO/RTO stakeholder processes and working groups to stay informed of regulatory and policy developments affecting interconnection. Track emerging industry changes including queue reform, transmission expansion planning, and storage integration policies. Team Leadership Support the day-to-day management and mentoring of junior staff or consultants. Contribute to a collaborative, team-oriented culture and help strengthen internal knowledge of interconnection processes. Communication &