Carbon Footprint of Power Transformers: Assessment Methodologies and Influencing Factors

Amid growing global emphasis on carbon emission reduction and sustainable development, increasing attention has been directed toward the carbon footprint throughout the life cycle of power transformers, critical components in electrical power systems. This research systematically reviews existing carbon footprint assessment methodologies and research findings regarding power transformers through a comprehensive literature review, establishing theoretical foundations and data references for subsequent investigations. By analyzing carbon footprint outcomes, this research identifies key low-carbon impact factors and elucidates the contribution weights and operational mechanisms of these factors across all life cycle phases, thereby providing a scientific basis for low-carbon optimization. The research aims to deliver theoretical support and technical guidance for the low-carbon transition within the power transformer industry.