Doubling Gas Storage Capacity in NZ Through Engineering Precision

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Improving Flexibility at a Critical Energy Asset

To strengthen gas supply resilience for a major power station, a key underground storage facility in Taranaki underwent a strategic capacity upgrade.

The goal: Increase gas injection and withdrawal rates from 35 to 65 terajoules per day. Verbrec was engaged to deliver multidisciplinary support across design, procurement, and commissioning—ensuring the facility met its expanded performance targets safely and efficiently.

Aerial view power station

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Increased Capacity

Compression doubled daily throughput.

Full Lifecycle
Support

Delivery from concept to
commissioning.

Seamless Brownfield Integration

Upgrades with no major disruption.

Optimised for performance

Designed to meet flow and compliance.

Designing for Throughput and Reliability

Verbrec’s scope extended across the entire project lifecycle—from concept design through detailed engineering, procurement, construction support, and final commissioning.

Working within an integrated team structure, Verbrec played a key role in maintaining alignment between design, execution, and operational requirements, supporting a smooth transition from planning to plant handover.

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Upgrading While Operational

As a live facility, the site required careful planning to integrate new infrastructure with minimal disruption. Verbrec’s brownfield experience enabled seamless connection of new systems without affecting the facility’s day-to-day function. Risk was managed through detailed interface planning, safety protocols, and close coordination with site teams.

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Building Resilience Into the Network

With the upgrade now complete, the facility delivers significantly more flexibility to the energy system it supports. The increase in capacity strengthens its role in balancing daily and seasonal demand, ensuring gas is available when it’s needed most.

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