Engineering, Procurement and Construction (EPC) services

Managing engineering, procurement and construction processes to ensure cost-effective delivery.

Asian construction engineer and supervisor checking blueprint for heavy steel pipeline material inspection. Commercial industrial infrastructure project and logistics supply chain management.

Service Description

Engineering, Procurement and Construction (EPC) services integrate design, management and execution under a single responsibility to eliminate risks, reduce costs and prevent delays. From the FEED phase to commissioning, this model safeguards investment and guarantees the operational success of complex projects.

EPC

End-to-End services for energy, industrial and infrastructure assets

Deploying large-scale energy, industrial and infrastructure assets requires balancing complex engineering challenges, rigid financial constraints and strict regulatory deadlines. When project owners and investment funds manage separate contracts for design, procurement and construction, execution friction frequently arises. Unaligned interfaces between engineering firms and site contractors lead to costly design modifications, schedule delays and capital expenditure (CAPEX) inflation.

As a premier industrial partner, our turnkey Engineering, Procurement and Construction (EPC) services eliminate this execution friction. By assuming single-point responsibility, we bridge the gap between financial ambition and physical reality, delivering fully integrated, high-performance assets that protect your capital and guarantee operational success.

Overcoming execution friction in complex energy and infrastructure projects

Major infrastructure developments—including combined-cycle power facilities, LNG regasification plants, green hydrogen complexes and urban transit networks—demand absolute alignment between design intent and physical construction. Traditional fragmented delivery models expose project sponsors to severe interface risks, where misunderstandings between multidisciplinary teams result in field rework and budget overruns.

Our turnkey EPC approach eliminates these vulnerabilities from the outset. By integrating engineering, procurement and construction under a unified management structure, we streamline decision-making and enforce rigorous risk mitigation. This integrated methodology ensures that technical specifications, environmental standards and economic requirements are synchronised throughout execution, providing investors with the certainty required to deploy capital into complex, high-stakes deployments.

Early FEED integration and risk-mitigated modular construction

The financial outcome of an EPC project is largely determined during the conceptual and Front-End Engineering Design (FEED) stages. Early engagement allows our engineering teams to optimise plant layouts, select high-efficiency equipment and identify potential constructability bottlenecks long before ground-breaking.

To minimise on-site construction risks and shorten delivery schedules, we prioritise modular construction strategies wherever feasible. Off-site pre-fabrication and modularisation of critical process units reduce labour density in high-risk environments, enhance quality control and mitigate the impact of local weather disruptions. By combining advanced digital engineering with pre-tested modular assemblies, we accelerate field installation while maintaining uncompromised occupational health, safety and environmental (HSE) standards.

Integrated EPC delivery and single-point project governance

Managing multi-billion-pound infrastructure assets demands transparent, unyielding governance. Under our turnkey EPC delivery model, we serve as the lead contractor with single-point accountability, simplifying project governance for asset owners, financial institutions and public sector sponsors.

We oversee the complete project ecosystem: detailed engineering, global supply chain sourcing, vendor qualification, civil works, equipment erection and system integration. Our robust project management frameworks utilise advanced digital tracking and enterprise resource planning systems to ensure complete auditability, version control and real-time monitoring of key performance indicators (KPIs). By managing contractor interfaces, regulatory compliance and local supply chain integration, we insulate project owners from operational liabilities and contractual disputes.

Commissioning, performance guarantees and operational handover

A turnkey project reaches its true test during the transition from physical completion to active operation. Pre-commissioning, cold testing and hot commissioning phases require meticulous coordination to verify system integrity and operational safety under real-world conditions.

Our specialised commissioning teams conduct exhaustive functional testing, performance trial runs and safety audits before formal handover. We back our execution with stringent contractual performance guarantees—including plant availability, energy efficiency thresholds, production output and environmental compliance parameters. This rigorous validation ensures that the completed facility operates at peak design efficiency from day one, establishing a seamless baseline for long-term operation and maintenance (O&M).

Safeguarding investment logic from detailed design to plant operation

An asset’s ultimate financial return—its Internal Rate of Return (IRR) and net cash flow—depends on preserving the core business case established prior to the Final Investment Decision (FID). Scope creep, unmitigated technical risks and poor vendor performance can quickly erode expected financial yields.

Our EPC methodology acts as a protective shield for your investment logic across the entire asset lifecycle. By maintaining strict design freeze protocols, conducting rigorous Total Cost of Ownership (TCO) evaluations and enforcing balanced contract risk allocation, we ensure that initial financial projections translate directly into physical reality. Whether constructing natural gas cogeneration facilities, cryogenic storage terminals, or advanced industrial infrastructure, our turnkey delivery model transforms capital investment into a resilient, high-yielding physical asset.

Turnkey EPC model
Unified management under a single point of contact, integrating engineering, procurement and construction to eliminate friction and safeguard CAPEX.
Optimisation and modularisation
Early involvement in design and off-site modular construction to mitigate risks, enhance quality and accelerate project timelines.
Operating cost guarantees
Rigorous commissioning and TCO analysis to ensure profitability, operational performance and long-term investment protection.
We transform complex projects into high-performing assets through integrated, rigorous and profit-oriented management.

Find out about the business lines associated with procurement

Discover Sener’s working methodology and the key projects in each area.

Sener will work on the Scholven 1 energy transition process

Dispatchability and Storage

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At Sener, we design and integrate advanced storage and hybrid systems that enhance flexibility, ensure reliability, and accelerate the transition toward a fully decarbonized energy future.
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Core services

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Corporate governance

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At Sener, we are committed to consolidating our good governance measures. Our commitment to society, progress and sustainability drives us to work with dedication and passion so that future generations can enjoy an environment full of resources and opportunities.
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Capabilities 

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Desde SENER Renewable Investments tomamos parte en la promoción, diseño, construcción e implementación, y financiación de los proyectos, además de en su posterior operación y mantenimiento. El primer paso para SENER consiste en la conceptualización y análisis de la oportunidad, así como la atracción de socios a nuestros proyectos. Del mismo modo, estamos en una excelente posición para sumarnos y complementar otros proyectos ya en marcha.
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