Operational performance for the year ended 30 June 2026

22/07/2026 13:22 NZST, GENERAL

OPERATIONAL PERFORMANCE FOR THE YEAR ENDED 30 JUNE 2026

Operational performance highlights:

• 642,134 total electricity network connections, up 1.6% on June 2025

• 13,017 new electricity network connections, up 3.7% on June 2025

• 8,794 GWh electricity volume distributed in the year, up 1.9% on June 2025 comparative period.

Commentary:

The year ended 30 June 2026 has seen network connection numbers continue to grow across Vector’s Auckland electricity network. In the year to 30 June 2026, total electricity connection numbers grew by 1.6%. New connections for the year ended 30 June 2026 are 3.7% higher than in previous year. Electricity distributed volume was up 1.9% compared with the year ended 30 June 2025, with residential volumes up 1.6% and business volumes up 2.0%. Cooler winter temperatures, particularly in August 2025, saw more electricity used for heating.

There has been a 0.5% decrease in total connections on Auckland’s gas distribution network over the year to 30 June 2026. New gas connections were down 45.2% on the prior year. There was a net reduction of 630 customers in the year ended 30 June 2026. Gas distribution volume for the year to 30 June 2026 was down 1.7% compared with the prior year, due to lower demand from the residential, industrial and commercial sectors.

SAIDI minutes for normal operations (planned) for the three months ended 30 June 2026 is higher than the prior comparative period however still within the regulatory threshold. SAIDI minutes for normal operations (unplanned) for the three months ended 30 June 2026 is lower than the prior comparative period. There have been no Major Network Events during the period, while the prior comparative period included the impact of one Major Network Event when the Auckland region was affected by Cyclone Tam. We note that SAIDI results are preliminary and subject to audit.

Year ended 30 June

2026 2025 % change

Electricity

Customers(1,4) 642,134 632,106 1.6%

New connections 13,017 12,548 3.7%

Net movement in customers(2)10,028 7,776 29.0%

Volume distributed (GWh) 8,794 8,634 1.9%

SAIDI (minutes) – 3 months to 30 June(3)

Normal operations – unplanned 13.1 29.2 (55.1%)

Normal operations - planned 26.3 10.4 152.9%

Major network events 0.0 20.5 N/A

Total 39.4 60.1 (34.4%)

Gas Distribution

Customers(1, 4 )119,991 120,621 (0.5%)

New connections 710 1,296 (45.2%)

Net movement in customers(2)(630) 267 N/A

Distribution volume (PJ) 11.7 11.9 (1.7%)

1. As at 30 June.

2. Net number of customers added during the period, includes disconnected, reconnected, and decommissioned ICPs.

3. SAIDI (minutes) for the three months ended 30 June 2026 is an unaudited value and subject to change.

4. Billable ICPs.

The Excel version can be found at: http://vector.co.nz/news

ENDS

Investor contact

Jason Hollingworth, Chief Financial Officer, Vector

Jason.hollingworth@vector.co.nz, 021 312 928

Media contact

Matthew Britton, Communications Manager, Vector

Matthew.britton@vector.co.nz, 021 224 2966

About Vector

Vector is an innovative New Zealand energy company, delivering energy and communication services to more than 600,000 residential and commercial customers across New Zealand. Vector has a leading role in creating a new energy future through its Symphony strategy which puts customers at the heart of the energy system. Vector is listed on the New Zealand Stock Exchange with ticker symbol VCT. Our majority shareholder, with voting rights of 75.1%, is Entrust. For further information, visit www.vector.co.nz.