As of March 15th this year all smart meters installed HAVE to be SMETS2 use of SMETS1 has been outlawed. Several smaller companies have folded as the cannot keep up with the regulations that are being enforced by Ofgem,I work for EDF and we have taken on at leasst three companies clients because the could not keep to the requirements so have folded.One of the reasons I've been saying I don't want a smart meter for years. Most now are SMETS2 but I'd imagine there are some 1's out there.
Denationalisation of the power industry although good for business it has opened up a whole other can of worms especially now as nearly anyone can open up a business as a retail energy provider!