"Eventually they will insist. We had a letter last month to explain that, as part of the national move to smart meters we are to be switched over now, and were given an installation date. No option."
"By 2020 the intention is that all meters will be smart meters, so in the long run we have little choice."
There is (as yet) no compulsion. This from the government website on the matter:
"All homes and small business sites will be offered smart meters by their energy company between now and the end of 2020."
Actually the rest of the document makes for light bedtime reading if you want a good laugh:
https://www.gov.uk/guidance/smart-meters-how-they-work
From the "Which" website:
"Now the official roll-out has started, energy companies have been asked to take 'all reasonable steps' to install smart meters in every home, however you still have the right to refuse a smart meter.”
So you do have a choice. If your energy supplier is daft enough to make a unilateral appointment to fit one simply refuse entry. They have no right of entry to do this without a warrant and a Magistrates' Court will not issue one because there is no legislation to support it. The only time they will secure a warrant to change a meter is if they can show the existing one is dangerous because, say, it is damaged or excessively old. Even then, when you have a Smart meter fitted under those circumstances you can insist that the data transmission functions are disabled.