As Australia accelerates its transition to renewable energy, Tonkin delivers practical, constructible engineering solutions that support developers, contractors and asset owners from early planning through to construction and beyond.
Planning, advisory and approvals
Early planning is critical to the success of energy and renewables projects. Tonkin supports clients through feasibility, planning and approvals phases, providing robust technical advice, site intelligence and infrastructure planning that informs investment decisions and reduces downstream risk. Our teams undertake site due diligence, including desktop assessments and on-ground reviews, working alongside geotechnical and environmental specialists to identify constraints and opportunities early, from access and terrain through to drainage and environmental sensitivities.
We also undertake route selection and infrastructure planning that balances constructability, landowner impacts and cost efficiency, recognising that construction access is one of the biggest challenges to delivering a renewables project. Early engagement with local councils and road authorities, particularly in remote communities, helps identify approval pathways and conditions of consent, reducing risk and delays later in the project lifecycle.
Enabling works design services
Enabling works are critical to unlocking renewable energy sites. Tonkin designs robust, constructible enabling infrastructure that supports heavy vehicle access, complex logistics and the challenging site conditions common to wind, solar and transmission projects. Our services include access road and intersection design for oversize and over-mass vehicles, bridge assessment and strengthening design, and pavement design to accommodate heavy construction traffic.
We provide stormwater and floodplain assessments, earthworks and drainage design to support site readiness and long-term resilience, prioritising safety, durability and constructability at every stage of delivery.
On-site design services
As Australia accelerates its transition toward renewable energy, on-site design plays a critical role in shaping practical, buildable solutions that respond directly to the realities of each project site. Tonkin provides detailed on-site design services to support the construction and operation of renewable energy facilities, drawing on our multidisciplinary capability to deliver coordinated civil and structural designs.
This includes internal access road and hardstand design for turbine components and operational traffic, and foundation and footing design support for substations, hardstands and equipment. Our stormwater and drainage solutions are informed by long-term rainfall event planning, while our earthworks, platform design and civil and structural coordination ensure infrastructure is efficient, durable and constructible.
Construction and post-construction services
Tonkin provides construction and post-construction services to support safe delivery, quality outcomes and asset longevity. Our teams work collaboratively with contractors and asset owners to resolve issues efficiently and maintain project momentum, undertaking pre- and post-construction dilapidation surveys of roads and surrounding assets to document condition and identify defects beyond normal wear and tear.
Our engineers bring strong technical oversight to each stage of construction, verifying workmanship and authorising progression at critical hold points. We also provide technical advisory services to address on-site challenges, uphold design intent and help developers navigate regulatory and environmental requirements, from design clarifications through to defects and close-out assistance.