Smart Meters Equipment Tech Spec Version 2 (SMETS2)

By 2019 2020, all homes in the UK will have a smart meter installed. DECC is working on the spec for these meters at the moment. In the context of my PhD on smart meter disaggregation, I have several questions I need to answer about these specs:

  • exactly which power metrics will UK smart meters expose to the home area network (HAN)? (just active power? And reactive power? Can we distinguish between leading vs lagging? THD?)
  • report rate? (one measurement every 5 seconds? The 2011 "Functional Requirements Catalogue" said "The smart metering system shall support capture of consumption and demand data at 5 second intervals."
  • and how could a disaggregation system read these data?

The Smart Meters Equipment Tech Spec Version 2 (SMETS2) was released in Jan 2013. Some useful paragraphs for those of us interested in disaggregation:

UK Smart Meters: sample rate and reactive power

I've been doing some research on exactly what parameters UK smart meters will record.

I've found DECC's "Functional Requirements Catalogue".

These are proposed requirements rather than confirmed requirements but, none the less, they are useful.

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