Erroneous Consumption Value 4294967.295 kWh (electricity)

Occasionally, SMEST1 electricity meters have been seen to report an anomalously high consumption value, reporting 4294967.295 or 2147483.647 within single 30min periods. This is a result of the meter failing to capture the consumption value correctly and reporting this value an an error code. This is a "feature" of the SMETS specification, the specification uses abnormally high values within the consumption field as an error code (which we believe isn't best practice but is what is defined within the specification).

n3rgy has considered how to process this error but as we have since discovered meter manufacturers using other similar values (which are not part of the SMETS specification) we have chosen not to process or modify the results delivered from the meter.

We recommend our customers detect excessive half hour readings (e.g. above 50kWh within on half hour reading) and process appropriately. 

NOTE: We've also received reports of the following erroneous readings.

8590.017, 8590.041, 34364.271, 4295.103, 4295.084, 8590.119, 8590.063, 8591.484, 8590.421, 38655.37, 186227.0865 all of which seem to be manufactures creating non-standard error codes for failures within their devices. Due to the nature of the national programme and the position taken by government and the regulator this is no obligation or requirement for manufactures to publish these error codes so they can be captured and processed explicitly.