HNTAS

HNTAS Notes

EC-KPI-01

Automatic remote monitoring system (ARMS) connectivity
Total number of days where monitoring points has connected to the ARMS system within 24 hours of last connection.
(Number of monitoring point days) / (total monitoring points * total days in period)
Number of monitoring point days = Σ number of days each monitoring point has connected to the ARMS system within 24 hours of last connection.
Assessed KPI
Commissioning stage: 100% O&M stage: ≥ 99%.
Monthly

• 100% over 1 month is meaningless. Same as 100% over any time period.

EC-KPI-02

Energy Centre monitoring point data completeness
Number of total reads received in comparison to the total reads expected within the given [time period] for each monitoring point.
(Total number of reads recorded across [time period] / total reads expected across [time period]) x 100
Total reads expected = Σ (monitoring point x frequency of monitoring point x [time period])
Assessed KPI
≥ 95%.
Monthly

• Reads will often be faster than expected, which as a threshold for failure will be slower than actual capability. As a result, KPI does not allow for gaps in data - incomplete data. This has been adjusted to work in the same way as EC-KPI-01, except with the time period set to 5 minutes, rather than 24 hours. As such, at least one reading needs to be seen each time slot.

EC-KPI-03
Energy Centre monitoring points operational
Of the monitoring points which are connected to the ARMS system (as per EC-KPI-1) and have complete data (as per EC-KPI-2), the number of which are operating as expected.
Monitoring points that are operating as expected will have (dependent on type of monitoring point):
1. No error codes (meters)
2. No negative readings (meters)
Verification that each monitoring point is operating as expected.
Measurement will be dependent on ARMS and may be automated.
Assessed KPI
100% of monitoring points, which are connected to ARMS (as per EC-KPI-1) and have complete data (as per EC-KPI-2)
Monthly