The Australian utility-scale solar market has been gaining momentum, and increasing competition amongst engineering, procurement and construction (EPC) contractors is leading to demands for top-in-class piling services. In order to meet these demands, Sequentia Services has taken a holistic approach to the market, selecting equipment and a supplier that allows them to exceed client expectations despite Australia’s challenging installation environments.

Sequentia Services specialises in servicing the large-scale solar farm and the utilities construction sector. On solar farms, its primary focus is the installation of piles that support the arrays of solar panels.

A holistic approach to machine selection

Eamon Doyle, Managing Director at Sequentia Services, said the company took a holistic approach to the market and the services it provides when building its piling fleet.

Among the key considerations that were taken into account were:

  • The machines needed to get the job done effectively in varying ground conditions while meeting piling tolerances and velocity rates
  • With its wide client base, the supplier needed to be able to provide excellent support no matter the project location
  • The machinery needed to be robust in order to handle the harsh nature of percussive pile driving and solar farm environments
  • Machine availability and utilisation needed to be high, with the supplier having trained staff and carrying the right parts in the right locations

“After evaluating the products on offer we felt like two manufacturers’ piling equipment stood out. In the end the choice to go with Vermeer was made on what we believe to be the lowest cost per pile installed over the life of the machine,” Mr Doyle said.

“The Vermeer PD10 is our piling machine of choice. The PD10 is a high frequency, high impact hydraulic hammer driven piling machine. It is capable of being operated from a ROPS compliant operators station, or remotely via a handheld controller. With our longest mast sections we can handle piles up to six meters in length. An auto plumb feature brings the pile to a true vertical position, easing the operating teams workload.

“Vermeer also has the ability to respond quickly anywhere in Australia. It has a network of branches across the country as well as online monitoring tools with features such as machine hours, any faults that may be happening or have been logged, location, fuel consumption, notifications on upcoming scheduled and planned maintenance events, updates and access to the operation, parts and service literature.”

Improving productivity in rough terrain

Sequentia Services recently delivered a 300MW solar project for Catcon in Port Augusta, South Australia. The solar farm was delivered over three stages, requiring a total installation of over 160,000 piles.

Mr Doyle said the PD10 proved to be particularly effective in handling the rough terrain of Port Augusta which is uneven and cannot be altered.

“The PD10’s broad ground cover, wide tracks and levelling abilities allowed the piling production to reach the best possible production rates for the conditions,” Mr Doyle said.

“The temperature in this region can top 48°C; having a machine whereby we could take the stresses off the crew by having them seated, using electric controlled joysticks rather than levers acting directly on hydraulic control valves was valuable.

“Also on the uneven ground, the auto plumb feature is priceless, saving time and producing the accuracy required. The auto plumb worked overtime, with significant adjustments of the mast positions every pile, and the varying subsoil conditions across the site meaning piling required more force.

“Combined with its high piling force, this all means we were more productive over the long run.”

The importance of a supportive relationship

Mr Doyle said that the service and support Vermeer has provided Sequentia from the purchasing of the PD10 through to their ongoing field service, has played a part in their success and the decision to purchase additional PD10s.

“I think it’s difficult to quantify the benefit a supportive relationship with the equipment supplier brings until the chips are down. Vermeer has been in Australia and supporting major infrastructure projects for almost 30 years now. Knowing that if and when something gets out of parameters, Vermeer is only a phone call away, that gives me a lot of confidence in taking on jobs that are
remote and difficult.

“Vermeer has been a pleasure to deal with. Ken Smith and the Brisbane team have been open and easy to communicate and deal with, as well as Nigel Dobier and Matt Reid in North Queensland when we were working up there.

“In South Australia Steve Batchelor was fantastic. Supported strongly by Ben Macintosh in Port Augusta, they performed as well as I could have hoped for. Any issues that arose were dealt with promptly and factory support was there to listen to any complaints or suggestions on how to make the machines better.

“The typical piling contract is not that long; three to five months. Each contract in a new location. Vermeer is on site and in the dirt with us, making sure we’re successful.

“Vermeer’s people and the extra steps they have taken to support me helped make my decision to buy additional PD10s.”

With the PD10 solar pile driver, Vermeer offers solar industry pioneers the high-quality, productive equipment solution this rapidly expanding market demands.

  • Horsepower: 49 horsepower (36.5kW)
  • Maximum operating height with a 20ft (6.1m) mast: 7.6m
  • Rollover protection system (ROPS) rating: 7393.6kg (compliant with all Australian safety regulations)
  • Maximum pile dimension (round – standard opening): 18.3cm
  • Maximum pile dimension (square – standard opening): 15.7cm
  • Maximum pile dimension (round – large opening): 23.6cm
  • Maximum pile dimension (square – large opening): 23.6cm
  • It is the only solar pile driver with a seated operator’s station and remote control
  • Compliant with Carlson GPS systems
  • 1500 bpm (beats per minute) high-frequency hammer

This partner content is brought to you by Vermeer. For more information, visit

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