End-to-End EPC Delivery for Renewable Energy Infrastructure
When entering into an EPC contract with EPEC, clients gain confidence that their project is supported by deep, in-house technical capability across engineering, modelling, commissioning, and project delivery.
EPEC tests and challenges technical assumptions, optimises designs, and proactively manages project risk. This approach ensures projects are delivered to schedule and budget, without compromising quality or compliance.
Our holistic system-level approach includes advanced engineering modelling, harmonic filter studies, R1 and R2 compliance testing, and comprehensive commissioning services.
Concept & FEED
Early grid studies and preliminary design to secure connection.
Detailed Design
Full electrical, civil, and SCADA engineering by in-house teams.
Procurement
Sourcing major equipment and managing OEM relationships.
Construction & Commissioning
Safe site execution, R2 testing, and handover to operations.
Substation & Grid Connection Construction Across Australia
Our integrated EPC model ensures seamless project execution and operational readiness, supporting voltage levels from 33 kV through 330 kV, with capability to support emerging 500 kV transmission infrastructure in line with the evolving National Electricity Market (NEM).
- Principal Contractor delivery
- Testing and Commissioning
- Integrated generator and substation SCADA
- Direct TNSP & DNSP liaison
- Procurement and logistics
- Design and Construct (D&C)
- Operations and asset management enablement
- Substation and BESS Balance of Plant
- Safe construction methodology
In-House Engineering, Procurement & Construction Capability
Our multidisciplinary team includes high-voltage engineers, project managers, project controllers, and procurement specialists with experience across the full asset lifecycle.
Engineering & Design
EPEC's in-house engineering team delivers robust concept and detailed designs tailored to each project's technical and site-specific requirements.
- High-voltage substations and grid connection infrastructure
- SCADA and communications systems for substations & BOP
- Power system studies and utility approvals
- Integrated design collaboration across engineering, construction and SCADA teams
Our scalable design capability supports voltage levels from 33 kV to 330 kV, with readiness to support 500 kV transmission infrastructure.
Equipment Procurement & FAT
EPEC manages the full procurement lifecycle for major high-voltage equipment for our EPC projects, including:
- Sourcing transformers, switchgear, reactors and control systems globally
- Coordination of international logistics and delivery
- Factory Acceptance Testing (FAT), including remote witness testing
- Procurement and configuration of SCADA hardware and comms systems
This centralised procurement model ensures rigorous quality assurance, cost efficiency, and schedule certainty.
Construction & Commissioning
EPEC delivers turnkey construction and commissioning services with a focus on safety and compliance:
- Civil works: earthworks, foundations, trenching, and access roads
- Structural and electrical installation
- Protection testing and SCADA integration
- Commissioning and energisation in compliance with NSP and utility standards
Our commissioning engineers perform R1 and R2 testing and system validation to ensure grid compliance and reliable operational performance from day one.
Integrated BESS & BOP Solutions
EPEC is a leader in delivering integrated Battery Energy Storage System (BESS) and Balance of Plant (BOP) solutions:
- Design & construction of grid-to-battery interfaces, including inverters, containerised enclosures, and control and protection systems
- Integration of power conversion systems, controller, and SCADA for hybrid renewable projects or standalone storage
- Civil works including battery pad construction, earthworks, and site infastructure
- Cohesive delivery of substation extensions and integrated BESS yards under a single contract
- End-to-end commissioning and grid compliance testing
Our integrated BOP delivery model ensures reliable, future-ready energy storage infrastructure from day one.
Proven EPC Results in Renewable Energy Projects
Why Choose EPEC to deliver your next EPC
As a leading engineering, procurement, and construction partner, we simplify complex connections across major renewable energy zones, offering end-to-end solutions that span from initial concept through to final commissioning. Backed by decades of industry experience and trusted relationships with network operators and developers, we bring the credibility and expertise to navigate even the most complex connection challenges. When problems arise, we resolve them fast, leveraging deep market knowledge and the right connections to keep your project on track and on time.
Precision, Accountability & Technical Excellence
Choosing EPEC Group means partnering with a team that delivers the full EPC scope of high voltage works. Our combination of engineering expertise and hands-on field experience ensures every design is technically robust, buildable, and cost-effective.
With in-house SCADA and commissioning teams, we don’t just construct substations—we ensure they operate intelligently and reliably from day one. Whether it’s integrating a complex battery system or delivering a major substation expansion, our clients trust EPEC to take ownership of the outcome.
