Case Study

Ammonia Upgrades

Case Study

Ammonia Upgrades

Solutions were tailored to suit existing infrastructure while aligning with a standardised safety strategy. TEG ensured all installations were completed safely and compliantly, supported by thorough documentation, and managed regulatory engagement to facilitate successful project sign-off.

A large manufacturing client engaged TEG Projects to deliver a multi-year upgrade programme addressing ammonia-related safety risks across four North Island sites. Working closely with the client’s experts, technical consultants, contractors, and site-based teams, TEG implemented targeted improvements including ammonia detection, ventilation upgrades, and emergency shutdown systems — all without disrupting refrigeration operations. By tailoring solutions to each site and ensuring compliance with refrigeration and hazardous area standards, the projects were delivered safely, on time, and within budget. The result was a consistent, compliant, and standardised safety approach across all locations.

Ammonia Safety Upgrades Industrial Plant Services TEG Projects

Client Information

A large manufacturing client required a staged upgrade programme to address ammonia-related safety risks in their engine rooms. The programme involved collaboration with multiple stakeholders including technical specialists, regional contractors, design consultants, and site-based engineering teams.

Goal

TEG Projects was tasked with addressing critical ammonia-related safety risks across four North Island manufacturing sites, all while maintaining uninterrupted production. The upgrade programme focused on three key mitigation measures:

Ammonia detection
Ventilation
Shunt trip systems (emergency power shutdown)

As the client’s project delivery partner, TEG ensured that all upgrades were installed, documented, and inspected in full compliance with PECPR regulations, hazardous area zoning requirements, and refrigeration standards.

Why TEG Projects

TEG provided client-side project management services from project initiation and scoping through to execution, final close-out, and handover. The scope of work included coordinating external design packages, facilitating technical reviews, managing contractor performance, and maintaining programme-level oversight across all sites.

Implementation strategies were developed to avoid refrigeration plant shutdowns, supported by robust delivery processes that incorporated hold points and acceptance criteria. Throughout the programme, TEG adapted its approach to evolving site conditions while maintaining technical clarity and strong stakeholder alignment.

Solution

TEG led the coordination of all delivery inputs across multiple sites, integrating civil, mechanical, electrical, and automation disciplines. Solutions were carefully tailored to suit existing infrastructure while aligning with a standardised safety strategy. The team ensured all installations were completed safely and compliantly, supported by comprehensive documentation, and managed regulatory engagement to achieve successful sign-off.

Challenges

Each site presented unique infrastructure, operational constraints, and stakeholder requirements. A key challenge was planning and executing the work without disrupting ongoing refrigeration operations. TEG addressed this by developing tailored, site-specific implementation plans, holding vendors accountable for delivery, and maintaining direct engagement with the client’s technical and operations teams throughout the project.

Results

The programme successfully delivered a series of complex safety solutions across multiple sites, with a strong focus on documentation, compliance, operational continuity, and long-term asset performance. By coordinating work across diverse trades, TEG ensured consistent outcomes while minimising disruption to refrigeration operations.

Key results included:

Delivery of complex, integrated safety systems across four North Island sites
Implementation of a standardised ammonia safety strategy tailored to specific site conditions
Full compliance with refrigeration and hazardous area standards
All projects completed on time and within the approved budget
Installation strategies designed to minimise refrigeration plant downtime, maintain operational continuity, and support proactive asset management

These outcomes highlight TEG’s capability to manage multi-site programmes with precision — ensuring safety, consistency, and reliability across every phase of delivery.

Capabilities

Service Areas

Project
Management

Construction
Project
Management

Ammonia Upgrades