Request for Information (RFI) on Active Substations with Flexible Large Power Transformers

ARPA-E has issued a Request for Information (RFI) DE-FOA-0003581 on "Active Substations with Flexible Large Power Transformers" to gather input for a potential future R&D program. This program aims to enhance the resilience, reliability, and security of the electric grid by fostering innovations in substations. The RFI seeks transformative, scalable, and rapidly deployable technologies that can reduce costs, lead times, and the size of substation components, decrease reliance on critical materials, improve power capacity and grid stability, and enhance cybersecurity. ARPA-E is particularly interested in solutions for fast-tracking large power transformer manufacturing, increasing modularity and power density, and addressing challenges in substation planning, design, and commissioning. The RFI excludes non-substation/non-LPT related areas, low-level power electronics control, and power semiconductor design. Responses are due by September 22, 2025, and will inform future program formulation, but do not constitute a funding opportunity.