Sustainability
Practical steps, measured impact
Sustainability at ETEL is focused on how we design, manufacture, and support distribution transformers in ways that reduce environmental impact over their lifecycle — while maintaining the performance and reliability our customers depend on.
As part of the Unison Group, our approach aligns with the Group’s sustainability direction across people, communities, environmental impact, and resilience.
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What we focus on
Circular solutions
We’re building circular practices into our operations — including regenerating used transformer oil and returning it to virgin-quality standards for reuse across critical power infrastructure and long-term energy distribution networks.
Efficient manufacturing
Product lifecycle & performance
Long-lasting equipment supports long-term sustainability outcomes. ETEL’s service capability helps assess, maintain, repair, and refurbish distribution transformers — supporting reliability and extending useful life where appropriate.
Featured initiatives

ETEL’s oil regeneration programme
ETEL’s oil regeneration programme recovers and reprocesses degraded transformer oil, returning it to a quality equivalent to virgin oil — reducing waste, extending material lifespan, minimising environmental impact, and supporting a more sustainable circular economy.

Measuring our GHG footprint
ETEL’s first greenhouse gas emissions inventory report documents our carbon footprint for FY2023/24 (1 April 2023 – 31 March 2024) across direct emissions (scope 1), purchased electricity (scope 2), and key supply chain categories (scope 3).
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