Managing MV equipment at end‑of‑life can feel challenging, and the presence of Sulfur Hexafluoride (SF₆) often increases that complexity. But it creates a valuable opportunity for more sustainable decision‑making. SF₆’s high global warming potential and lengthy atmospheric duration make proper recovery and recycling essential for reducing emissions and meeting regulations.

To learn how Schneider Electric assists customers in moving from equipment such as SM6 to SF₆-free solutions such as SM AirSeT, we spoke with our sustainability & circularity expert, Ludovic Debuchy. With more than 20 years of experience shaping service strategies across multiple industries, today he leads Schneider Electric’s global Take Back capability, helping customers transition responsibly from legacy SF₆-filled equipment to more sustainable solutions. 

Why SF₆ handling is crucial today 

Dhanyatha Kalale – Question 1: How does SF₆’s atmospheric durability emphasize the importance of its recovery and recycling efforts? 

Ludovic Debuchy: It is imperative. SF₆ is a man‑made gas that did not exist naturally in the atmosphere before industrial use began, and once released, it remains there for millennia. That is why recovering every kilogram during SM6 decommissioning is so critical. Effective recovery minimizes environmental harm, guarantees proper management, and satisfies regulatory compliance. In several countries, SF₆ is recognized as a controlled greenhouse gas, demanding certified recovery processes, accurate documentation, and adherence to disposal protocols. Observing these steps prevents compliance risks, ensures audit readiness, and advances the transition to cleaner technologies such as SM AirSeT. 

What really happens to SF₆ at end-of-life? 

D.K. – Question 2: What happens to SF₆filled equipment once it is no longer operational or functional? 

L.D.: In regulated industries, managing end-of-life electrical assets follows strict protocols. Equipment is safely de-energized, SF₆ gas is recovered using certified tools by qualified partners and stored in sealed cylinders. SF₆ treatment involves two paths: thermal breakdown for environmental mitigation or purification and regeneration for reuse in other applications. Schneider Electric’s Takeback services, integrated into modernization projects, offer streamlined retirement solutions for equipment like legacy SM6 units containing SF₆. The process starts digitally, allowing seamless transport to certified facilities for gas recovery. The equipment is dismantled under controlled conditions, with all materials, steel, aluminum, copper, electronics, repurposed appropriately. Transparent documentation supports every stage, including impact assessments linked to digital requests. Customers benefit from a compliant and efficient process, accelerating their transition to SF₆-free technologies such as SM AirSeT. Non-regulated environments, however, face variability in practices, often lacking certified resources and reliable procedures, which increases risks of mishandling. Schneider Electric tackles this challenge by providing professional takeback solutions with traceable processes, ensuring customers enjoy consistent services regardless of regulatory differences. 

Advancing beyond SF₆: A resilient tomorrow 

D.K. – Question 3: Might SF₆free equipment eventually align with existing protocols for standard recycling streams? 

L.D.: Generally, yes. SF₆-free switchgear excludes gases requiring specialized end-of-life treatment. Once de-energized, the equipment typically follows recycling procedures akin to those used for standard metal systems. Metals such as steel, copper, aluminum, and electronics can enter standard recycling channels without needing gas recovery, specialized cylinders, or certified SF₆ disposal. While precautions for electrical safety and waste classification remain in place, the need for complex gas extraction steps disappear. This streamlined process is one of the practical benefits of transitioning from traditional SF₆-filled SM6 to SM AirSeT, offering a more manageable and simplified end-of-life pathway. 

Scaling global TakeBack programs for SM6 and beyond 

D.K. – Question 4: What milestones have been reached in developing Take Back solutions for SF₆filled equipment? 

L.D.: We have made notable strides forward. With our Take Back capability integrated into our Services offer, we are recovering and processing larger volumes of retired MV equipment with SF6 gas across various regions. Our emphasis is on expanding service availability, enhancing logistics partnerships, and simplifying recovery and decontamination processes for clients. As modernization roadmaps take shape, we ensure SF₆ management, traceability, and recycling are smoothly incorporated into their transition to cleaner alternatives such as SM AirSeT. 

Evaluating results: Environmental wins of take back 

D.K. – Question 5: What is the process to record the environmental results of a Take Back and estimate its CO₂ impact on customers? 

L.D.: Every Take Back initiative provides robust environmental metrics, detailing the impacts of end-of-life processes such as climate change, fossil fuel depletion, and water use. A key focus is SF₆ recovery, a gas with an immense warming potential of 24,300 kg CO₂e per kg, as noted in IPCC’s 6th assessment. This is comparable to driving 90,000-95,000 km in a typical gasoline car or travelling 2.25 times the earth. Proper recycling of SF₆ empowers responsible, confident equipment retirement. This method bolsters sustainable grid operations, ensuring a reliable and environmentally conscious energy future. 

SF₆-free progress: Pioneering the way forward. 

As the industry accelerates its transition toward cleaner, SF₆free technologies, 
responsible end-of-life practices are more important than ever. Schneider Electric’s Take Back programs ensure that customers retiring legacy like SF6 MV equipment can do so safely, compliantly, and with full transparency, while significantly reducing environmental impact. 

By recovering and recycling SF₆ correctly, we help you retire older MV equipment with confidence and clarity. It is a practical, responsible way forward, and a key part of how we support simple, reliable grid operations- that lets you breathe easy. 

Modernizing your base systems? Discover and stay one step ahead of the transition with your Energy Technology partner.