Projects

GRNZ works closely with construction site estimators and managers to substantially reduce their diesel power generation costs on site and simultaneously reduce their carbon footprint. In some cases, diesel power generation can be eliminated completely. We use battery energy storage systems (BESS) to optimize efficiency and consumption while reducing noise, emissions and excess fuel consumption. The automated system minimizes generator engine run-time and maximizes use of stored battery energy. GRNZ’s extensive expertise is the perfect partner for any client wanting to investigate the battery energy concept. From commercial feasibility and design, right through to installation, commissioning and ongoing support.

Are you looking for a high availability power solution for your event? GRNZ recently supplied two 750kVA, very low noise generators for an event in Wellington. These 20 ton generators were configured to run in parallel and to load share. Should one fail or its electrical output be compromised, the other would pick up the entire gig's load without interruption.

Generator Rental NZ Ltd is widely recognised throughout New Zealand and the South Pacific region as a company with the fleet and technical competence to supply generators and associated equipment to the highly technical drilling industry. Our success is due to top quality equipment and backup services, innovative ideas and a highly skilled and motivated staff.

GRNZ are a supplier of generators for broadcasting and filming companies. Mobile broadcasting vehicles require a reliable source of power for the various sensitive and important equipment components when broadcasting on location. GRNZ provide a fully bespoke design and sizing service, to ensure you get the solution that’s fit for your requirements. With large fuel tanks, power distribution and remote monitoring systems fitted, you can be ensured our operators will keep your operation rolling flawlessly and uninterrupted.

For all your multi-Megawatt electrical load testing requirements. This recent Caterpillar/MWM powered landfill gas load testing project involved tons of cabling, large trailer mounted load banks and additional generators and distribution equipment to power the gas plants compressors, blowers, pumps, ventilation and chillers while testing was undertaken. GRNZ undertook delivery to the remote site, connection, testing and demobilization, all within a tight timeframe and to schedule.

We have just kick started this 3 year prime power contract for a national aviation provider. The project includes internet based remote monitoring and control, text, email and web based reporting, all fuel, servicing and ongoing 24x7 support.

GRNZ recently supplied a large trailer mounted unit to support a customer's batch plant while they undertake several months of electrical modifications and improvements to their equipment. GRNZ supplies units all over Northland, for any application.

GRNZ was approached by Spark for the supply of temporary diesel generators for a major 10 month electrical upgrade at New Zealand's largest purpose-built, tier 1 satellite earth station. The supply consisted of two matched, synchronized, low interference generators with extended run capability, connected to a single common electrical bus in an N+1 configuration. The customer scope also required construction and integration of various alarm outputs to match the existing 1970's management system feeding back to the customer's network operations centre.

When Downer went looking for mobile lighting for their rail upgrade project, they chose GRNZ to supply multiple diesel powered, trailer LED lighting towers. The scope included centralized staging for ease of delivery and 24x7 on call support.

GRNZ recently supplied 11 weeks of temporary power for a scheduled mains cable upgrade. Compounding the complexity were access, the marsh like conditions and the requirement for a super silent, fully automated load supplimenting system. GRNZ supplied BECA Group Limited with a custom one touch, all weather solution with full remote visibility and control, which not only complied with, but exceeded the Auckland Council's residential noise requirements.

New World Supermarket in East Auckland approached GRNZ for a standby power solution while 2 weeks of scheduled generator maintenance took place. GRNZ supplied and stored a diesel generator and accompanying cable set on the customers premises, to be connected if required. The solution included 24-hour on call support of our connections and maintenance team.

One of the oldest construction companies in New Zealand approached GRNZ when a 15 month transformer delay threatened their high-rise project. GRNZ supplied a long term power solution for their tower crane and kept construction on schedule.

When a catastrophic fire destroyed an entire production plant manufacturing crital components for COVID 19 care, GRNZ was engaged for 4 months to supply emergency prime manufacturing power at the customers new facility while the street, transformer and buildings infrastructure were upgraded. The contract included a custom cable supply schedule and ongoing fuel replenishment and support for the duration of the project.

When a large New Zealand owned construction company came looking for an on-call rental solution to cover the delayed delivery of their customer's new generator, GRNZ had just the answer. A suitably sized generator was supplied to site on an on-call basis which perfectly suited the customer's budget and timeframe. Just another way that GRNZ works closely with our valued customers.

An unscheduled mechanical outage at one of New Zealand's largest Countdown supermarkets resulted in GRNZ supplying critical backup power for a week while repairs were undertaken. The urgent short notice request resulted in the GRNZ crew supplying, connecting and testing a solution over a weekend without interruption to the customer's store operations.

When Ward Chandler Electrical required temporary power during the December break for a major distribution board upgrade at Auckland Girls Grammar School, they chose Generator Rental NZ Ltd to fulfil their temporary power and distribution requirements. Established in 1888, it is one of the oldest secondary institutions in the country.

When a provider to one of the largest data centres in New Zealand went looking for load banks to test and prove their generators, they contacted and contracted GRNZ for a turnkey supply and test solution. The scope consisted of 1400kVA of load bank capacity and associated cabling.

When Eneraque, the largest privately owned, Australian generator integrator required load testing of their 1200 kW generators, they chose GRNZ to supply and perform their New Zealand tests prior to customer site delivery.

While Vector, New Zealand's largest distributor of electricity and gas is leading the transformation of the energy sector to create a new energy future, Generator Rental NZ Ltd is assisting by powered Beachlands School while Vector upgrades the sites electrical infrastructure.

State owned enterprise KiwiRail relies on Generator Rental NZ Ltd for supply of long term critical infrastructure backup power. Competitive pricing by GRNZ ensures KiwiRail is able to operate as a successful business and to be as profitable and efficient as comparable businesses that are not owned by the Crown.

February 2022 - When a major weather event and trees brought down the powerlines stopping all construction on a multi dwelling development, GRNZ stepped in at short notice to supply power. With multiple simultaneous requests all over Auckland and Northland, Generator Rental NZ Ltd staged multiple units for customers to collect at our Silverdale and Albany depots. Just another way we keep the lights on and those permitted construction sites working.

When the Auckland Council's generator powering their pumps failed, they turned to GRNZ to supply temporary power to keep water flowing while electronic repairs were undertaken by Diesel Generators NZ Ltd, one of our recommended maintenance and repair specialists. Our small to medium sized trailerised generator fleet ensures fast deployment and setup.

Our client required temporary power for several months while their mining operation was relocated. GRNZ worked with the client to establish their power requirements taking into account the electrical startup and running requirements of various pumps, screens and motors and supplied a large trailer mounted unit to move with the mining operation.

A major satellite launch provider required prime power units and redundant/service changeover for their facility in New Zealand. GRNZ supplied two 350kVA, low diesel consumption units for several months with all accompanying service support. All our staff fulfil the requirements for high security operations which includes facilities such as NZ Corrections, NZ Police, NZ Customs and military.

A customer adjacent to a demolition site in Remuera was without power after the lines were accidentally removed. GRNZ rolled in one of our trusty FG Wilson generators from our extensive fleet. The job included temporary fencing, sound attenuation blankets and daily diesel to fill the power gap while overhead cables were reinstated by Vector a week later.

Who is the quietest generator of them all? This customer's site received a noise complaint as a result of their generator being to noisy, resulting in GRNZ supplying a whisper quiet unit. Another construction site temporary power project while the customer waits for metering to be completed and approved. Delivery, setup, fuel and demobilization, everything to ensure a great noise free experience.

Who do you call when there's something wierd going on in your neighbourhood and your diesel powered black start unit is temporarily out of service? GRNZ of course. Here's Tim in the main hall with the customers 20 megawatt steam turbine while power generation continues in the background.

GRNZ recently acquired this silent 550kVA generator which is powering the retirement village while scheduled maintenance is undertaken. Work undertaken includes a bypass of the Vector transformer to simplify connection and reduce paper overhead.

Alimak provides permanent and temporary high quality elevators, construction hoists and work platforms built on rack and pinion and traction technologies. So how do you run your direct on line (DOL) Alimak hoist on a generator when it requires 300 amps to start but only 20 amps to run and your daily diesel consumption is a major cost contributor? You contact GRNZ of course. We wedged this low consumption 140kVA green generator into the tiny allocated site space on a long term contract and made it all work with a bit of our custom electrical wizardry.

The customer, Shape Energy Limited, required extra long trailing cables and cable ramps for a temporary relocation of their customer's high availability generator while substantial hi-tech internal electrical modifications were undertaken for several months. GRNZ delivered, assisted with connection and made it all safe, just another service in the GRNZ cupboard.

BreastScreen Aotearoa provides a breast screening service for women aged 45 to 69. Eligible women can have a free mammogram every 2 years to check for breast cancer. Mammograms are provided at clinics and mobile units throughout New Zealand, for which GRNZ supplies super smooth power to various remote locations for BreastScreen Aotearoa.

When it comes to choosing a portable generator for your construction site, it is important to keep in mind that not all job sites carry the same power requirements. Power needs and requirements vary from one location to another, it’s important to rent generators that will accommodate different needs on a project-by-project basis. First step is to calculate power requirements of commonly used equipment. Assess what equipment the generator needs to power, be sure to consider not only the required power needs to run, but also add in a buffer. Some equipment requires more power to start, than to run. Most importantly, a portable commercial generator can help power key equipment, such as saws, drills, pumps, grinders, welders, compressors, and even help charge battery packs for battery powered equipment. Here we are providing power for floor grinding operations.

Our client, a perishable cargo refrigerated container operator, contacted GRNZ for a reliable, functional and a managed 12 month power solution to power their multiple yard reefers. Our solution included a remotely monitored package consisting of long run duration generators, power distribution and ongoing servicing, fuel and 24 hour support.

Our customer required a very large single phase generator for a special application. The GRNZ fleet consists of both single and three phase generators of various sizes. In this particular case the rental period was for several months and included daily diesel refueling and all servicing. GRNZ also supply 60Hz, 110V output machines on special request.

The problem: Late afternoon and Vector's transformer has sprung an oil leak and is required to be shut down immediately. The customer: A major construction company operating two tower cranes at Auckland airport. The solution: GRNZ express delivers a 500kVA generator to site with two super long 185mm cable sets and assists with connection. Daily refuelling and checks are undertaken until the transformer can be repaired and proven. The result: Site is up and running on generator overnight, both tower cranes are operational and construction continues.

Friday 28 January 2023 - Friday's storm was Auckland's wettest day on record. Fire crews handled more than 2000 calls and 126 rescues between Friday and Saturday morning. Saturday 29 January 2023 - States of emergency have been declared for Auckland and the Waitomo District, with evacuations taking place in Waitomo on Saturday due to flooding. GRNZ are out in force dealing with flooded transformers and numerous power outages in the Auckland region. Cyclone Gabrielle - Thursday 9th to Tuesday 14th February - 52 generators ranging from 13kVA to 700kVA deployed for critical infrastructure, aged care, food manufacture, distribution, dairy, accommodation, rural broadband and numerous other industries. Our deployments range from Kaitaia in the north, all the way down to the Hawke's Bay region.

This emergency repair was undertaken when the retaining wall contractor drilled through the incorrectly positioned main cable supplying 19 units in a new suburban infill development. GRNZ rolled out the noise compliant power solution and kept it running for ten days while the underground cables were replaced.