Consolidated Dashboard

By Malcolm Souness - Director 221b Limited

In my first role as an energy supply analyst, a whole series of reports for the Board were produced using separate spreadsheets and datasets. One thing that was missing was the ability to cross check and validate data for board reporting. Read More…

2020 Meter Register Review (2)

Generation Register Errors


By Malcolm Souness - Director 221b Limited
During January 2020, we undertook an investigation into electricity meter register configurations on New Zealand electricity networks.

One of the data quality issues identified is the configuration of NHH generation meter registers. Read More…

2020 Meter Register Review (1)

Controlled load availability


By Malcolm Souness - Director 221b Limited

During January 2020, we undertook an investigation into electricity meter register configurations on New Zealand electricity networks.

The number of infrequently used register configurations indicates that legacy ripple control schedule durations remain in the Electricity Registry. For example, Vector has over 0.2M controlled meter registers with 1-23 hours availability, however just one has an availability of 5 hours, and one other has six hours available. The balance of probabilities suggests these may not be legitimate hours available. Read More…

Meter Register Content Codes

Author: Malcolm Souness, Director, 221b Ltd
Originally published 29 October, 2019, updated January 2020

The source data used for this analysis are taken from the Electricity Authority of New Zealand EMI website. The R statistical analysis package is used to transform and present the data in a more useable form, source code available from the 221b Data Refinery Github Repository. The key constraint on this dataset is the exclusion of de-energised sites (ICP Status 001). Read More…

Supplied and Submitted Volumes

Author: Malcolm Souness, Director, 221b Limited
Originally published 5 June 2019

Electricity industry participants (traders) in New Zealand are required to submit calendar normalised "submitted" energy volume (AV-080 for non half hour data, and AV-090 for half hour data), as well as the "supplied" (billed/invoiced) volume (AV-120). Refer: Reconciliation Manager Functional Specification v9.27. The normalised volumes are used for market settlement and clearance.
Read More…