I went to chase up our DNO today (SSEN) and they say a load survey/fuse upgrade has a waiting time of several weeks. I then rang BP Pulse to ask if they needed an 80A fuse or a 100A. The lady on the phone said an 80A, “should be okay”.
I will contact the company doing the smart meter install (and isolator install) tomorrow, but I’m not sure whether to tell them to install a 100A isolator switch or a 80A.