Our innovative heatmaps help keep the health of our assets in check. The red highlights any areas of concern that we can get onto fixing as a priority.
A virtual map of all our assets
Many of our network assets were originally built in the 1950s, and as they age, their condition and performance deteriorates.
To make sure our customers have a safe and reliable electricity supply, we’re in the process of renewing these assets including conductors, crossarms and poles.
But prioritising which ones to replace depends on a range of factors including its material quality, environment, previous maintenance, current condition, fault history and more.
In response, we developed an Overhead Renewal Planning Tool (OHRPT), which combines all this different data to produce visualisations showing where network renewal is most needed.
The tool also uses information to help predict the potential impact of asset failure (and power outages) such as the number of customers that could be affected in the area.
Combined, all this information allows our engineers to balance trade-offs and target investment where it provides the greatest cost benefit and improved safety for our customers
Kenneth Pattie, Overhead Renewals Manager, says the OHRPT has transformed the way our overhead planning engineers work.
“A task that previously took months can now be done in days, and rather than being subjective, our decisions are all based on the same logic and transparently available data.
“Our renewal planning engineers can now prepare a significantly larger portfolio of planned renewal projects with longer lead times – starting planning 2 years in advance, compared to three months in advance like we used to (pre-CPP).
“Over time, these insights and change in strategy will improve safety and other outcomes for our customers. Also, projects are planned fully detailed ready for optimization and design.”
Link to our glossary
Work begins on OHRPT
Starting to be 1 year ahead in project planning using OHRPT
Starting to be 2 years ahead in project planning using OHRPT
Find out the latest updates about this project
We strive to minimise impact in the design and placement of network infrastructure and we’re still planning and consulting on the route for the new circuit. The circuit will be a mix of overhead lines – which you will see, and underground cable – which you won’t see. You’ll also see a new building at our Putaruru substation, replacing the ageing existing building there.
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