The advice given here to do nothing yet was for the best. I just had this update from MSE, no mention of smart meters but all good news.
"EDF has told us it is placing customers on one of six new tariffs – which one you’re moved to will depend on the rates you were paying with Green Network Energy.
We’re still chasing EDF for full details of these new tariffs, but it has said that it "guarantees all customers will see a price decrease versus your current tariff until 30 September 2021."
It told us that the maximum price of these new tariffs will be £950/year on average for someone on typical dual-fuel use, and the rates won’t change until the end of September. In comparison, the cheapest on the market currently is from E.on, at £925/yr including £25 Cheap Energy Club cashback on the same usage.
So right now, this sounds good, but it hasn’t provided the full tariff information yet, and as prices vary by region and usage, we can’t validate what it is saying. Once we have more info on EDF’s tariffs, we’ll update our
EDF to take on Green Network Energy’s 360,000 customers MSE News story with full analysis.
The new EDF tariffs won't have exit fees, so if the deal doesn't turn out to be as good as it seems, or if prices across the rest of the market drop below what you’re paying on EDF, you can switch penalty-free."