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Sulphur Hexafluoride (SF6)

Introduction

SF6 is a gas which is used throughout the electricity industry as an insulating medium in switchgear. It provides many tangible benefits, however it is a potent greenhouse gas with a high global warming potential (GWP).

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SF6

As part of our ongoing commitment to achieve our SBTi targets and as bans on SF6 are being introduced in certain equipment, NGED is working closely with manufacturers in the development of SF6 alternatives to ensure equipment meets operational safety requirements in the UK. In addition, where an existing SF6 asset replacement is required we replace with a lower SF6 volume unit, lowering the overall SF6 bank.

The amount of SF6 lost on the network has improved since target were set for RIIO-ED2. The baseline for performance is based on performance in 2019/20 and we have achieved NGED targets for the first year of RIIO-ED2 as show in figure 7.