Ms Claire Quane:

It is important that members of the committee understand we have been reporting the level of SF6 gas usage since 2006 when the F-gas regulations took effect. As Mr. Mulvaney said, the ESB has been around for 90 years. It has equipment that is old and which we manage, as well as equipment that is new. That is part of what we do. We have legacy equipment and it is a challenge to manage it.