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https://www.tnb.com.my/sustainability/esg-stories/

Toxic Emissions & Waste

A Circular Economy Approach: Reduce, Reuse, Recycle Beyond internal use, there is a potential regional service.
We envision the SF6 Gas Recycling and Reconditioning
Centre becoming a key player in regional sustainability
The SF6 Gas Recycling and Reconditioning Centre embodies efforts. By offering our services to external parties, the Centre
a circular economy approach, focusing on the 3R principles: can benefits companies and utilities across Southeast Asia:
Reduce, Reuse, and Recycle. This minimises reliance on virgin
gas and reduces environmental impact.

Support Large Power Consumers
Companies with industrial facilities that utilise SF6-insulated equipment can benefit
Reduce
As of April 2024, the centre has processed a total of 11,114.83kg from our recycling and reconditioning services, reducing their environmental footprint
By effectively recycling SF6 gas, we minimise the need to purchase new gas cylinders, of SF6, contributing to cost savings of RM500,167.35 and contributing to regional sustainability goals.
directly reducing overall SF6 gas acquisition. year-to-date (YTD) from January 2022 to April 2024. This
represents an impressive 86% of the targeted cost avoidance Empower Neighbouring Utilities
for the facility.
Reuse We have the potential to partner with utilities in Southeast Asia, providing them with
access to this eco-friendly solution for SF6 gas management. This can contribute to
The recycled gas is meticulously reconditioned to meet the required standards, enabling To maximise the environmental and economic benefits, a collective reduction in the region's greenhouse gas emissions and support regional
its reuse within our operations for GIS and CB maintenance, extending the lifespan of TNB has also stopped procuring new SF6 gas in bulk. By climate change mitigation efforts.
valuable resources.
implementing a closed-loop system, the centre plans to
incorporate the use of recycled SF6 gas for GIS rehabilitation,
repair and refurbishment works. Through TNB’s SF6 Gas Recycling and Reconditioning
Recycle
Centre, we promote circular economy and reduce the impact to
The centre employs a meticulous four-stage SF6 gas handling process, with the first environment.
two stages (Recovery and Recycling) dedicated to collecting and reprocessing the gas
for reuse. Financial and Environmental Benefits
The TNB SF6 Gas Recycling and Reconditioning Centre
The SF6 Gas Handling Process offers a win-win situation. It reduces TNB Grid’s environmental
footprint by promoting SF6 gas reuse and minimising reliance
The centre utilises a meticulous four-stage process to on virgin gas, aligning with TNB’s Sustainability Pathway 2050
manage SF6 gas effectively, employing specialised equipment and supporting national climate change mitigation efforts.
for each stage. Here’s a table summarising the process: Additionally, TNB Grid estimates potential savings of at least
RM0.6 million annually.

Carbon Management Water Management Biodiversity & Land Use Opportunities in RE Toxic Emissions & Waste
Human Capital Development Health & Safety Labour Rights Supply Chain Management Community Relations Corporate Governance