The 3rd International Conference on New Power System and Power Electronics (NPSPE 2026) will be held in Harbin, China during December 25-27, 2026 in hybrid format. It serves as a professional platform for engineers and researchers to exchange ideas, share cutting-edge research outcomes, and deliberate on the latest technological advancements in new power systems and power electronics with distinguished experts and scholars worldwide. It offers opportunities for all attendees to engage in in-depth academic exchanges, face-to-face discussions, and professional networking with leading experts across the entire field. The 3rd International Conference on New Power System and Power Electronics (NPSPE 2026) will be held in Harbin, China during December 25-27, 2026. NPSPE 2026 invites the submission of original research papers in the fields of new power system and power electronics to be published in the conference proceedings. Each submission is anonymously reviewed by an average of three independent reviewers, to ensure the final high standard and quality of submitted papers. All accepted papers will be published by SPIE, and sent to EI Compendex, Scopus for indexing.