2026 Tutorial: Increasing DER Hosting Capacity with Flexible Interconnections and Flow Control

2026 Spring Technical Workshop Tutorial: Increasing DER Hosting Capacity with Flexible Interconnections and Flow Control Tutorial Chair: Leo Jiang, Engineering Fellow, ESIG Presentation file available at: https://www.esig.energy/event/2026-spring-technical-workshop/ This tutorial focuses on two proven, low-cost advanced grid technologies – flexible interconnections and power-electronics-based flow controllers – that can significantly increase hosting capacity for distributed energy resources (DERs). These can be faster and more cost-effective than traditional grid reinforcements, by maximizing the utilization of existing network assets, accelerating DER interconnections, reducing costs and environmental impacts, and providing the operational flexibility needed for future grids. While conventional reinforcements remain essential for long-term firm capacity, advanced technologies can defer or reduce the size of infrastructure upgrades and/or provide a transition while long-term firm capacity is being constructed. The tutorial features innovative solutions and guides participants through the full adoption lifecycle of these advanced applications, illustrated with real-world utility-scale demonstration projects and key lessons learned. Speakers: Jon Grooters, Director of the US Market, EnerNex Zach Pollock, Director of Grid Strategy & Emerging Technology, Xcel Energy Mike Hanestad, Principal Power System Engineer and Team Lead, RLC Engineering Mark Szewczuk, Power Systems Engineer, EnerNex