Ms Aoife MacEvilly:

We have thought about seeing if there is a way of differentiating between the electricity that is renewable by virtue of it being part of the PSO-supported electricity and other portions. If people are supporting the PSO portion, it can be their portion of green energy, if you like. The question is what portion of the 100% is from these guarantees of origin. It is a question of helping people to understand. It is something we have considered internally but not quite got our heads around doing it in a way that would not potentially make things more confusing, to be honest. I use 100% green electricity because I see value in it.