Solar farms, wind farms, battery installations and transmission lines each create distinctive plant demands, often in regional locations with long programs. This guide covers the machines most associated with energy and renewables construction, the compliance themes that come with working near energised infrastructure, and the commercial arrangements common on these projects.
01 / Solar farm plant demand
Utility-scale solar construction is repetitive work spread over large areas. Pile drivers mounted on tracked carriers install the steel posts that carry the tracker or fixed-tilt structures, and their availability often sets the pace of the whole project. Telehandlers and all-terrain forklifts distribute panels and structural components along the rows, while excavators and trenchers cut cable trenches for the DC and AC collection systems.
Supporting plant includes graders and rollers for internal access tracks, water carts for dust management across large disturbed areas, and small excavators or skid steers for inverter and substation pad preparation. Pre-drilling rigs may be needed where the ground contains rock that pile drivers cannot penetrate. Geotechnical pull-out testing early in the project informs which method, and therefore which plant, is required.
02 / Wind farm and transmission work
Wind farms need substantial civil work before turbines arrive. Excavators and dozers build hardstands and access roads capable of carrying heavy components, rock breakers deal with foundations in hard ground, and large volumes of concrete are placed for turbine bases. Cranes used for turbine erection are a specialist category, usually contracted separately, but the civil fleet must deliver crane pads and roads to the tolerance the lift plan requires.
Transmission line construction adds its own equipment. Excavators with augers or bored piling rigs install tower foundations, and all-terrain vehicles or tracked carriers move crews along easements. Stringing work uses tensioners, pullers and drum trailers, often supplied by specialist providers. Easement access across private land brings strict requirements around gates, weed hygiene and minimising disturbance. Landholder agreements may also restrict working hours near homesteads and livestock, which affects shift planning for hired crews.
03 / Working near energised assets
Once a site is partially energised, or where new work runs near existing lines and substations, electrical safety controls become central. Network operators and project principals generally set exclusion zones and approach distances for plant working near overhead lines, and may require spotters, height limiters or physical barriers. Specific distances vary by voltage and jurisdiction, so confirm them with the relevant network operator and regulator.
Battery energy storage sites and substations introduce further controls, including restricted access areas and permit systems managed by the network or asset owner. Hired operators need to understand the site's electrical access rules and hold any authorisations required. Plant suppliers should ask early whether their personnel will need network-specific training so it can be scheduled before mobilisation. Training courses run by networks or approved providers can have limited places, so late requests risk delaying the start of work.
04 / Environmental and landholder obligations
Renewable energy projects often cross farmland and native vegetation, and their approvals typically carry detailed environmental conditions. Weed and pathogen hygiene is a frequent requirement, meaning machines must arrive clean and may need wash-down certification before entering a property. Some projects mandate inspection at designated wash bays between land parcels, which affects how plant is moved around site. Wash-down records should travel with each machine so they can be produced when a landholder or environmental officer asks.
Erosion and sediment control, protected species management and cultural heritage protocols all shape how and where plant can operate. Hired machines may be excluded from marked areas, restricted to formed tracks, or required to stop work if unexpected finds occur. Suppliers who brief their operators on these conditions reduce the risk of non-compliance that could affect the principal contractor's approvals.
05 / Contracting and supply models
Energy projects are frequently delivered by engineering, procurement and construction contractors who set supplier requirements for the whole site. Plant suppliers should expect prequalification covering safety, environmental management, insurances and machine documentation, and may be asked to report hours, fuel use and incidents in a set format. Some principals track emissions from plant, so fuel consumption data is increasingly requested.
Long programs make monthly or term hire rates common, sometimes with guaranteed minimum durations. For specialist items such as pile drivers, suppliers may seek commitment to a fixed period because the fleet is scarce. Hirers should weigh that commitment against piling production risk, and agree how rates change if geotechnical conditions force a switch to pre-drilling or alternative methods. A clear mechanism for adding pre-drilling rigs mid-project avoids renegotiating the whole hire when rock is encountered.
Field checklist
- Confirm pile installation method from geotechnical testing before booking rigs
- Obtain network operator requirements for plant near energised lines
- Plan wash-down and weed hygiene certification for each property entry
- Brief operators on environmental exclusion zones and heritage protocols
- Agree reporting formats for hours, fuel and incidents with the principal
- Clarify minimum hire periods for specialist plant such as pile drivers
Frequently asked questions
What plant is used to build a solar farm?
Pile drivers install the posts for the mounting structures, telehandlers distribute panels and components, and excavators or trenchers cut cable trenches. Graders, rollers and water carts build and maintain access tracks. Pre-drilling rigs may be needed in rocky ground. The exact fleet depends on the project size, ground conditions and mounting system chosen.
Do plant operators need special training on renewable energy sites?
Often, yes. Beyond standard licences, operators may need site inductions, training on the principal's electrical safety rules, and network-specific authorisations where work occurs near energised infrastructure. Environmental and cultural heritage briefings are also common. Requirements depend on the project and network operator, so confirm them before mobilising personnel.
Why do renewable projects require plant wash-downs?
Many projects cross agricultural land and native vegetation, and their approvals include conditions to prevent the spread of weeds, soil pathogens and pests. Machines may need to be cleaned and inspected before arrival and when moving between properties. Some projects require documented certification. The specific requirements are set out in the project's environmental management plan.
Are pile drivers hard to hire for solar projects?
Availability can be tight when several solar projects are under construction at once, because pile drivers are specialised and relatively few suppliers hold large fleets. Suppliers may require minimum hire periods. Booking early, confirming the pile type and ground conditions, and discussing contingency for pre-drilling help secure suitable equipment.