Preventive maintenance can reduce the risk of equipment not starting when you require it. Simple things like low battery voltage, low fuel or water level can cause the unit to fail & let you down at the most critical time. The ideal preventative maintenance program would prevent all equipment failure before it occurs.

We offer on-site weekly / monthly / 3 Monthly / 6 Monthly checks or one off annual services to suit your specific requirements.

The benefits of a Service & Maintenance Agreement for your equipment are:

  • Operation & availability of your critical equipment when it is required

  • 24/7 on-site technical support by technicians that know your equipment & have site access

  • 24/7 access to re-fueling

  • Fixed annual service and maintenance costs

We offer a full range of flexible Service and Maintenance Agreements for all brands and types of Generator equipment (both petrol and diesel) and pumps.

Call today for a Service & Maintenance quotation.


Power Plant Supplies have a range of portable trailer mounted load banks to meet with your requirements up to 500 kW, each load bank in our fleet allows you to select the block loads you require.
We can offer short term 1 day hires or long term hire at very competitive rates.
All hires include 20m cable run & trailer - if required.


Power Plant Supplies are the New Zealand distributor for SEPHCO portable load banks ranging from 100 kW up to 2400 kW. Please do not hesitate to call for further information

Control systems older than 10 years can be less reliable, harder to source parts for and any repairs or maintenance incurred are at greater cost. With the advancements in controller technology, now it is possible to ‘upgrade a controller’ even without replacing the hardware. More often than not, an engine and alternator will continue to do the job required.

A control system upgrade is all that is needed. Power Plant Supplies can take care of your control system. From repairing a simple fault, to an after-market upgrade, even a full overhaul of your current control system. We can offer a simple key start to AMF right up to synchronisation with a utility supply.

We have fully trained technicians who can assess your current control system and advise the cost-effective system to meet your requirements.

Our parts division is run by two full time technicians with many years of experience in the industry, we stock most major parts & high use items that are required for servicing the equipment we sell + we have a network of suppliers to allow us to source parts for your requirements if required.

With a fully operational workshop facility & three full time electrical /mechanical  technicians and fabricating facility, we are able to offer servicing and repair on all  types and sizes of generators and Selwood pumps.

To request a service, technical support or parts for your generator please contact us at any time.
Please have on hand your equipment Model & Serial number.