About our EPC services

Developing a power project requires more than procuring equipment and appointing contractors. Engineering decisions, technology selection, procurement schedules, site readiness, regulatory requirements, grid connectivity, construction quality, safety and commissioning must work together.

A delay or design change in one area can affect the entire project. Poor coordination between engineering, suppliers and site contractors can result in cost overruns, equipment incompatibility, rework and delayed commercial operations.

BARREL approaches EPC delivery as an integrated project-management and technical-execution process. We coordinate the technical, commercial and construction activities necessary to translate an approved project concept into an operational asset. Depending on the contract, our scope can include feasibility inputs, engineering, procurement, civil and electrical works, equipment installation, grid interconnection, testing, commissioning and handover.

Our objective is to deliver infrastructure that is technically compliant, commercially disciplined, safe to construct, maintainable throughout its operating life and ready for its intended application.

A team of technicians installing solar panels on a large array

Technologies and infrastructure we serve

BARREL's EPC offering is designed to support projects across multiple power-sector technologies.

Rows of ground-mounted solar modules under a cloudy sky

Renewable power generation

Utility-scale solar photovoltaic power plants
Commercial and industrial solar installations
Rooftop solar systems
Floating solar, subject to site suitability and applicable permissions
Onshore wind farms and associated balance-of-plant infrastructure
Solar-wind hybrid projects
Small and conventional hydroelectric projects
Renewable energy projects integrated with battery storage

Conventional and emerging power technologies

Thermal power infrastructure and balance-of-plant packages
Gas-based power infrastructure
Nuclear-sector enabling infrastructure and appropriately authorised project packages
Small modular reactor-related infrastructure, subject to the applicable legal and regulatory framework
Industrial captive power systems
Hybrid generation and energy-management infrastructure

Energy storage

Grid-scale Battery Energy Storage Systems (BESS)
Renewable energy storage integration
Battery inverter and power conversion infrastructure
Energy storage control and monitoring systems
Associated electrical, civil, fire-safety and grid-interconnection works

Transmission, substations and grid infrastructure

Electrical substations and switchyards
AIS and GIS substations
Power transformers and associated systems
HT and EHV transmission lines
Transmission line-in-line-out arrangements, where approved
Pooling substations and evacuation infrastructure
Underground and overhead electrical networks
Protection, metering, SCADA and control systems
Grid connection and associated balance-of-plant packages

The precise scope depends on project requirements, technology selection, statutory permissions, approved designs and the capabilities authorised for the specific contract.

Our EPC scope of work

Power cables laid side by side in an excavated cable trench

A. Project definition and engineering

Every successful EPC project begins with a clear understanding of what must be built, where it will be built, how it will operate and what it must achieve. Our engineering coordination can include:

Review of the project brief and technical requirements
Assessment of site information and available technical studies
Definition of design criteria and project boundaries
Technology and equipment selection support
Preparation or coordination of preliminary engineering
Basic and detailed engineering
Design calculations and technical specifications
Layouts, single-line diagrams and equipment schedules
Bills of Quantities (BOQ) and Bills of Materials (BOM)
Interfaces between civil, mechanical, electrical and control systems
Technical review of constructability and maintainability
Engineering document control and revision management

Where specialist engineering, independent design verification or statutory approval is required, the relevant scope is assigned to appropriately qualified and authorised professionals.

B. Procurement and supply-chain coordination

Equipment procurement can determine a project's schedule, cost, reliability and long-term maintenance requirements. BARREL can coordinate procurement in accordance with the approved technical specifications and procurement strategy:

Development of procurement packages
Request for Quotation (RFQ) documents
Vendor identification and prequalification
Technical and commercial bid evaluation
Comparison of equipment specifications and warranties
Purchase recommendations
Purchase-order and delivery-schedule coordination
Manufacturing progress monitoring
Inspection and testing coordination
Logistics and transportation planning
Site delivery scheduling
Receipt inspection and material reconciliation
Equipment documentation and warranty records

Procurement may be undertaken directly by BARREL, through approved subcontractors, or by the client under a coordinated EPC arrangement, depending on the agreed contract.

C. Civil and site development works

Civil infrastructure provides the foundation for safe construction and dependable plant operation. Subject to the contracted scope, civil works may include:

Site surveys and setting-out coordination
Earthwork and grading
Site levelling and development
Internal roads and access infrastructure
Drainage and stormwater management
Foundations for equipment and structures
Equipment plinths and transformer foundations
Control-room and utility-building construction
Cable trenches and underground duct systems
Equipment-yard development
Fencing and access-control infrastructure
Water, sanitation and site-service facilities

Geotechnical investigations, environmental studies and other specialist assessments are coordinated where required.

D. Electrical and mechanical installation

BARREL coordinates the installation of project equipment and interconnected systems within the approved scope:

Mounting structures and equipment installation
Solar module and inverter installation
Wind-farm balance-of-plant works
Battery containers and power-conversion equipment
Transformer installation and connections
Switchgear, circuit breakers and isolators
Busbars, conductors and electrical connections
Cable laying, termination and identification
Earthing and lightning-protection systems
Protection relays and control panels
Metering and instrumentation
SCADA and communication interfaces
Auxiliary electrical systems
Mechanical and electrical interface checks

All installation work follows approved drawings, equipment instructions, applicable standards and the project's quality and safety requirements.

E. Grid connectivity and evacuation infrastructure

A power plant's commercial usefulness depends on its ability to connect to the grid or the intended network. BARREL can coordinate the engineering and execution of grid-connection packages, subject to the applicable utility and regulatory framework:

Grid-connectivity requirement assessment
Coordination of evacuation-system design
Substation and switchyard packages
Transmission-line and associated infrastructure
Protection and control integration
Metering and communication arrangements
Interface coordination with the transmission or distribution utility
Inspection and testing coordination
Shutdown and outage planning
Synchronisation and grid-interconnection readiness

Connectivity approvals, transmission access, open-access permissions and grid-connection permissions remain subject to the decisions of the competent authorities and utilities.

F. Testing, commissioning and handover

Construction completion is not the same as operational readiness. BARREL coordinates the systematic verification of the installed infrastructure before handover:

Mechanical completion checks
Electrical inspection and testing
Cable and insulation testing
Earthing-system verification
Protection-relay testing
Transformer and switchgear testing
Functional testing of control systems
SCADA and communication checks
Interlock and safety-system verification
Pre-commissioning checklists
Punch-list preparation and closure
Trial operation and performance testing
Commissioning documentation
Operator training and handover coordination

Acceptance criteria, performance tests, guarantees and commissioning responsibilities are defined in the applicable contract.

Our EPC delivery methodology

Stage 1
Project assessment
We understand the client's objectives, project capacity, site conditions, technical requirements, budget, delivery timeline and proposed commercial structure.
Stage 2
Scope definition
We establish the boundaries of responsibility, exclusions, interfaces, technical assumptions, deliverables and acceptance requirements.
Stage 3
Engineering and planning
The project is developed into an executable engineering package with a defined schedule, procurement plan, resource plan, quality framework and construction methodology.
Stage 4
Procurement and mobilisation
Equipment packages are finalised, vendors are coordinated, site requirements are addressed and construction resources are mobilised according to the approved plan.
Stage 5
Construction and installation
Civil, mechanical and electrical activities are executed through the agreed delivery structure, with progress, cost, quality and safety monitored throughout.
Stage 6
Testing and commissioning
The completed systems are inspected, tested and commissioned against the approved technical requirements.
Stage 7
Handover and operational readiness
The client receives the agreed technical records, drawings, test reports, manuals, warranties, asset information and other contractually required documents.

EPC project controls

BARREL's proposed project-control framework covers:

Work Breakdown Structure (WBS)
Baseline project schedule
Milestone and critical-path monitoring
Cost tracking and variation control
Procurement and delivery tracking
Engineering deliverable registers
Drawing revisions and approvals
Quality inspection and test plans
Health, safety and environmental monitoring
Risk and issue registers
Contractor coordination
Daily, weekly and monthly progress reporting
Testing and commissioning status
Punch-list and handover tracking

The level of reporting and digital integration is tailored to the project's size and contractual requirements.

EPC delivery models

BARREL can evaluate different contracting structures according to the client's requirements.

Turnkey EPC

A defined package covering the agreed engineering, procurement, construction and commissioning scope.

Balance of Plant (BoP)

Delivery of civil, electrical, mechanical or other infrastructure surrounding major equipment supplied by the client or another vendor.

Package EPC

Delivery of a defined portion of a larger project, such as a substation, evacuation line, battery system or electrical package.

EPC management and coordination

Coordination of multiple contractors and suppliers under an agreed project-management mandate.

Owner-specified EPC

Execution against client-approved designs, specifications, equipment lists and technical standards.

The applicable responsibilities, performance obligations, exclusions and risk allocation are established contractually.

Who should engage BARREL?

Our EPC service is intended for:

Renewable energy developers
Independent Power Producers (IPPs)
Captive power developers
Commercial and industrial energy consumers
Infrastructure companies
Utilities and eligible public-sector project owners
Industrial parks and manufacturing facilities
Battery storage developers
Investors acquiring or developing power assets
Project owners seeking an EPC or BoP partner

Why BARREL?

Integrated technical and commercial coordination

Engineering, procurement, construction and project controls are coordinated within one delivery framework.

Multi-technology perspective

Projects can be evaluated across generation, storage and grid infrastructure rather than as isolated equipment packages.

Lifecycle awareness

Maintainability, equipment accessibility, documentation and operational requirements are considered during project development.

Structured accountability

Responsibilities, deliverables, milestones, variations and acceptance requirements are defined clearly.

Digital project visibility

BARREL's digital project-management vision connects engineering, procurement, site progress, documentation and financial controls through a common information framework.

Complete power infrastructure. Engineered, delivered and commissioned.