Our expertise

Battery Energy (BESS) Construction Services

We deliver full civil engineering and infrastructure services for grid-scale battery energy storage projects across the UK. Designed for performance, compliance, and long-term reliability.

20+ Years

Experience

Full-service

Design & Build

Fully Accredited

Trusted by Leading

Energy Companies

Powering critical energy infrastructure.

Experienced BESS Construction Contractors

At ACS Construction, we understand that battery energy storage systems (BESS) are the future of the UK’s renewable energy infrastructure. These large-scale rechargeable batteries allow you to build renewable energy into your projects from the start. Without the risks of inconsistent performance due to changing weather.

BESS projects carry high technical demands and strict programme pressures, particularly where grid connection and commissioning dates are fixed. We provide complete construction services for battery energy storage sites across the country.

Get in touch

Make an Enquiry.

Select the services relevant to your project

Construction
Energy & Utilities
Developments
Contracting
Civils & Groundworks
Multi Utility Services

ACS Construction Group Ltd played a pivotal role in the successful execution of the civil and construction works on the Eye Synchronous Condenser project.

The Hinkley Connection Project is a new 57 km high-voltage electricity line that will connect six million homes and businesses to new sources of low carbon energy. It will help the UK to meet ambitious targets to achieve net zero by 2050. The Sandford substation – one of 300 substations throughout England and Wales - is at the heart of the project.

ACS’s proactive approach, rigorous quality management, and collaborative spirit ensured successful delivery of a complex, high-value facility in a challenging environment — reinforcing a strong working relationship with British Salt.

End-to-End BESS Construction Services

Our teams take on responsibility for the entire build, from site preparation through to commissioning readiness. Scope typically includes compound construction, foundation systems, containment and ducting, fire and thermal protection measures, substation interfaces, and grid connection works.

On every project, we pay close attention to site-specific factors too. Space constraints, thermal zoning, fire protection, HV and LV integration and grid interface requirements all shape how a battery storage project is built. We understand these factors and plan construction accordingly.

Let’s discuss your project

Groundworks, Civils and Infrastructure For BESS

Long-term operational performance is essential in BESS developments. We deliver detailed groundworks and civil engineering services meeting the specific demands of battery storage projects. Constructed with safety, compliance, and longevity in mind.

Our BESS services include:

Site clearance, earthworks, and levelling
Construction of reinforced concrete foundations for battery units, inverters, and substations
Installation of drainage systems
Internal access roads, hardstanding areas, and laydown zones
Security fencing, gates, and perimeter infrastructure
Ducting and cable trenching to support electrical systems

We work closely with stakeholders to coordinate civil and electrical requirements. Creating a safe and performance-optimised connection between infrastructure and battery components.

Groundworks, Civils and Infrastructure For BESS

Tailored BESS Installation and Grid Integration

Successful grid integration is a fundamental part of any BESS project. Our team supports the installation of battery systems by creating a reliable foundation during the construction phase. We provide preparation and installation support for battery storage units and inverter systems, as well as high-voltage and low-voltage cable routing infrastructure.

We can act as principal contractor on standalone BESS projects or as a delivery partner within larger EPC or framework programmes. On principal contractor projects, we manage all on-site delivery, trade coordination, CDM responsibilities and interface management.

On EPC-led programmes, we integrate closely with client teams to provide targeted delivery expertise and support.

Speak to our team

Tailored BESS Installation and Grid Integration

Why Choose ACS for BESS Construction?

Battery energy storage systems are still a relatively new technology. This means you need a partner that understands the technical, regulatory, and logistical challenges involved in BESS developments.

Our team has years of experience working on these projects, proactively ensuring they’re delivered safely, efficiently, and in line with programme and compliance requirements. We’ve delivered several energy storage systems, including;