Operational performance for the three months ended 30 September 2025
21 October 2025
Operational performance highlights:
634,269 electricity network connections, up 1.2% on September 2024
2,460 GWh electricity volume distributed in the period, up 1.3% on September 2024 comparative period.
Commentary:
The three months ended 30 September 2025 has seen network connection numbers continue to grow across Vector’s Auckland electricity network. In the year to 30 September 2025, total electricity connection numbers grew by 1.2%. However, new connections for the three months ended 30 September 2025 are 7.0% lower than in the three months to 30 September 2024. Electricity distributed volume was up 1.3% compared with the three months ended 30 September 2024, largely correlating with cooler temperatures where more electricity is used for heating. Residential volumes were up 1.6% while business volumes were up 1.0%.
There has been a 0.1% decrease in total connections on Auckland’s gas distribution network over the year to 30 September 2025. New gas connections in the three months to 30 September 2025 were down 47.2% on the same period last year. There was a net reduction of 156 customers in the September 2025 quarter. Gas distribution volume for the three months to 30 September 2025 was down 2.7% compared with the prior comparative period, due to lower demand from the residential, industrial and commercial sectors.
SAIDI minutes for normal operations (planned) for the six months ended 30 September 2025 is lower than the prior comparative period reflecting our on-going focus on preventive maintenance and vegetation management. SAIDI minutes for normal operations (unplanned) for the six months ended 30 September 2025 is higher than the prior comparative period and includes the impact of Cyclone Tam, which also triggered a Major Network Event beginning on the 15th of April 2025 and lasting until mid-morning of the 18th of April. We note that SAIDI results are preliminary and subject to audit.
3 months ended 30 September | ||||
|---|---|---|---|---|
Electricity | 2025 | 2024 | % change | |
Customers (1, 4) | 634,269 | 626,636 | 1.2% | |
New connections Net movement in customers (2) | 3,198 2,163 | 3,439 2,306 | (7.0%) (6.2%) | |
Volume distributed (GWh) | 2,460 | 2,428 | 1.3% | |
SAIDI (minutes) – 6 months to 30 September (3) | ||||
Normal operations – unplanned | 53.9 | 43.4 | 24.2% | |
Normal operations - planned | 26.2 | 28.4 | (7.7%) | |
Major network events | 20.5 | 16.3 | 25.8% | |
Total | 100.6 | 88.1 | 14.2% | |
Gas distribution | ||||
Customers (1, 4) | 120,465 | 120,556 | (0.1%) | |
New connections Net movement in customers (2) | 201 (156) | 381 202 | (47.2%) (177.2%) | |
Distribution volume (PJ) | 3.6 | 3.7 | (2.7%) | |
1. As at 30 September.
2. Net number of customers added during the period includes disconnected, reconnected, and decommissioned ICPs.
3. SAIDI (minutes) for the six months ended 30 September 2025 is an unaudited value and subject to change.
4. Billable ICPs.