On 01/10/2024 21:29, Peter Merchant wrote:
Later I was wondering what happened if you had different suppliers for
your electricity and gas. This fellow sort of explains that:
https://www.energy-review.co.uk/guides/how-do-smart-meters-work/
According to this:
https://www.ofgem.gov.uk/sites/default/files/docs/2010/12/han-workshop---19-nov---ember-han-basics_0.pdf
it looks like the wireless Home Area Network (HAN) that these things
use to communicate in-house with each other and with the display use
Zigbee, which is a Low power IOT protocol that usually uses the
2.4GHz band. See wikipedia for Zigbee.
That is useful to know. However, I wasn't entirely wrong when I said
that I thought that SMART meters used the 2G network for the WAN. See:
https://commonslibrary.parliament.uk/research-briefings/cbp-9959/#:~:text=The%20government%20announced%20in%20December,latest%2C%20but%20likely%20much%20earlier.
I suspect that the evolution of the devices was that they used 2G in the
early days, (because it was there), but transitioned to other
technologies when the demise of that network was announced.
--
Terry Coles
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