Health and safety at the forefront  |  Written statements of compliance and destruction certificates provided |  Any scale, from 2-250 ton transformers


Decommissioning work is highly specialised.

We are here to work with you every step of the way throughout the process of your decommissioning projects. We make the removal of redundant material simple and easy, with safety, transparency and a professional attitude throughout the process.

At GMR Energy our service can be as simple as pickups from your depots around the country. Or contact us early on to scope and price the entire substation decommissioning works, including bulk removal of cables, transformers and switchgear.

We have thorough procedures in place for identifying and managing hazards and disposing of decommissioned assets in an environmentally responsible manner.


We Offer the Safe and Efficient Removal of all Redundant Equipment

We can project manage your entire decommissioning project.

Our service includes pricing the removal of all associated redundant equipment, physically dismantling it and loading assets onto transporters on site. We provide full methodologies, JSAs and engage approved third party contractors, alongside NZQA qualified staff, where needed.

With over 30 years in the energy industry, our highly experienced staff have extensive knowledge of substation environments around the country. They understand the local conditions, hazards and industry compliance requirements.

powerco substation NZ

Safety First

Smooth decommissioning projects depend on safety first. Prior to commencing the removal of any assets, all removed equipment is identified and proven to be de-energised and disconnected from any supply sources.

We ensure that all identified hazardous waste is handled by an approved or correctly trained person. Where applicable, traffic management is provided, to ensure public and staff safety.

Complete Transparency

All salvageable scrap materials are weighed and the docket is forwarded to the client within 48 hours of the asset being removed.

Project Completion

All waste material is removed from site and the site is swept clean. Where required, our service can include the reinstatement of floors or access ways.

Full Documentation

Upon completion of works at each site, a report is provided with photos and details on the new current condition of the substation.

We can manage the full project for you and dispose of the whole network associated with the particular piece of equipment that you need decommissioning, from the overheads to the underground cables.

We operate with full transparency.

We provide written statements of compliance and destruction certificates to prove your assets have been disposed of in the correct manner.


Health and safety compliance is at the forefront of our operations, with the following in place for every project.

Risk Procedures

Different organisations typically follow specific procedures for managing their unique environmental risks. We incorporate each organisation’s own environmental risk procedures into our own stringent risk management procedures.

Risk Register

We begin any project by first identifying hazards through a Risk Register Assessment. This is developed in conjunction with our client to ensure any additional health and safety procedures at an organisation level are also included in the Register.

Daily Hazard ID forms are produced every day and we have an onsite diary.

substation decommissioning nz
energy plant decomissioning

Job Safety Analysis and Reporting

Paperwork is produced around methodologies, along with Job Safety Analysis Sheets. All risks associated with a project are listed in detail, along with any associated risks relating to the actual work being undertaken.

Environmental Risk

We take environmental risk extremely seriously, from the initial onsite work, to post-decommission and disposal of materials. We make sure decommissioned products are disposed of in an environmentally responsible way.

MSD Forms

Material Safety Data Sheets (MSD forms) also form part of our extensive job packs. Every day we have a site meeting before we start the job, where we list all hazards and tick every box. We make sure that JSAs have been read by every person in the work party and that every person involved in the project has a full and clear understanding of all health and safety requirements.

Photographic Evidence is Provided

Photos are taken before and after site decommissioning and included in the job folder.

NZ substation

A decommissioning project accumulates an extensive amount of documented information because everything related to health and safety and site compliance is recorded.

The contents of the project folder are readily available to our clients any time they wish to see it. Upon completion of the project, a full copy of all documentation is provided to ensure our client is fully compliant and covered for audit.


Carl has spent most of his working life working on, servicing and maintaining high voltage equipment.

Carl Whittington

Carl began his 30+ year career by working his way up from field staff, to supervisor and on to project management, when employed by Transpower’s main service provider.

Milestone projects included installing and maintaining Wellington’s first wind turbine in Brooklyn, overhauling/rebuilding large transformers for Transpower, reinstating and maintaining the total energy centre at Wellington hospital, and creating a workshop specialising in rebuilding transformers and circuit breakers for the distribution market and large industry.

Carl also operated his own company, catering for the requirements of the local power board. He routinely worked on their equipment and substations throughout the greater Wellington region, before joining GMR Energy.


Carl was involved with various contracts for GMR before joining full time. One of these was the dismantling of three of New Zealand’s largest transformers on site at Tiwai aluminium smelter. Most recently Carl project managed the removal of the overhead Trolley Bus Network for Wellington Cable Car. That led on to the removal of redundant equipment directly from Wellington Electricity substations. This project involved a detailed scope of works and processes, along with involvement of key subcontractors. Meeting the customer’s level of required confidence was pivotal to this project’s success.

Carl has worked with many energy companies during his extensive career, including Electrocorp, Powermark, Areva, GEC Alstrom, Alstom, Transfield Services, Broad Spectrum, Siemens United Networks and Northpower.


Carl was project manager for the decommissioning of substations that served the Wellington overhead trolley bus network. The overhead network was completely removed by June 2018 and the first substation was removed that November. The project involves 17 sites in total and work is due for completion by August 2019.



Remote sites have their own challenges. You can’t afford to forget anything. When you’re two hours away from the nearest rental shop, you need to be highly organised and well planned. This project is currently underway and the work pack is being developed. Decommissioning these four transformers will take a solid week for a team of four to five people.

We continually invest in the only the best specialist equipment, ensuring safety and compliance at all times.

We can handle any scale of decommission required, from 2-250 ton transformers.


“In our opinion these guys are the best in the business.”

Chief Executive, R H Freeman & Co Ltd, Wellington
Leading engineering company in Wellington

“GMR provided quality, comprehensive documentation, such as Job Safety Analysis and Lifting Plans, showing the job was being well planned.
On site, GMR staff all cooperated and engaged to get the job done safely.”

Luke van Pomeren
Project Manager, Transpower NZ Ltd

“We have been dealing with GMR for years. Top service and top guys to work with makes our life easier when getting rid of transformers and scrap metal.”

Wayne Watkins, Maintenance Planner
Wellington Electricity – IISC

“GMR have a very professional can do attitude approach with Safety being their number one priority, nothing is too hard and if you have any challenges around scrap they will work to achieve your desired outcome, best in the business and recommend to anyone.”

Wayne Field, Manager
Downer Power & Gas Western

“General Metal provides an outstanding service to us, respecting our various requirements including strict onsite H&S rules. We have complete faith in their ability to service our needs no matter the size of the job, including the commendable coordination of a large substation transformer removal. On top of all that we enjoy working with their always friendly and accommodating staff.”

Supply Manager,
Fourth largest electricity and power lines company in New Zealand

“GMR provided an excellent service to our company, their staff carried out the job safely and efficiently, a pleasure to work with.”

Adam Burns, Project Supervisor, Transfield Services
Transpowers Service Provider

Need your site decommissioned?

Contact Carl directly on 021498974 or send an enquiry.

GMR Energy is part of GMR, based in Wellington’s Hutt Valley. We operate between Hamilton and Wellington including east and west coasts.

South Island projects are undertaken on a case by case basis. Please enquire.

Domestic scrap metal customer?

General Metal Recyclers deals in all types of scrap metal recycling

Our pick up service is only available to our commercial clients. If you are a domestic customer, you are welcome to come to one of the yards to drop your scrap off

Call STEEL MAN on 027 658 9885 to arrange a pick up for your domestic appliance or metal recycling pickup

Minimum collection fee $30 (for multiple items) for greater Wellington area.