Transformer Life Extension: GSU Transformers at Tucurui Dam. Case Study Around Vital Role in Sustainability, Resilience and Reliability.

As the global energy sector advances toward sustainability, the transformer industry faces a critical juncture of innovation and environmental responsibility. Transformers, as material and energy-intensive assets, are central to high-emission processes. Consequently, investment decisions regarding life extension of existing units versus replacement with new assets must incorporate not only economic but also environmental considerations. This paper examines the key environmental aspects relevant to such decisions.