Battery Energy Storage Systems (BESS)
Delivering grid stability and resilience to support the energy transition, with matched energy storage cable systems for BESS.
An opportunity in storage
Battery energy storage is critical to unlocking the potential of renewable energy at utility scale. By regulating supply, it reduces the requirement for power generation, in turn creating a more reliable and robust energy network.
1.5GW
BESS capacity completed in UK in 2024
62MWh
average BESS project size in UK
7GWh
utility scale BESS capacity online in the UK
Unlocking potential
Utility scale battery storage systems store excess energy when generation from renewable sources is high, and release it to balance grid requirements in line with demand.
As renewable energy generation increases, battery energy storage systems are becoming increasingly important to boost resilience across the grid, without relying on fossil fuels. This is a critical and proven technology, driving the energy transition to support our net zero targets.
Experts in battery energy storage cables systems
We’re experienced in BESS markets, working with developers, investors and site teams to support the delivery of battery storage assets that last.
If you have a technical challenge relating to product specification and engineering across your cable system, speak to our team. We have the understanding and technical expertise to overcome any obstacle.
Market-leading energy storage cables
A carefully-selected range of best-in-class cables held in stock, including Low Voltage 1kV//3kV, Medium Voltage 33kV, High Voltage 132kV and Extra High Voltage 275kV/400kV.
High-quality accessories and components
A vast range of accessories and components that support buildability and can reduce installation costs, matched to energy storage cables for enhanced, proven systems.
Dedicated technical support
On hand to support you from contract award through to electrification, providing specification and engineering expertise that adds real value to projects.
Cables, components and accessories for BESS assets
Browse our products or get in touch for a tailored quote of matched energy storage cable systems.
0.6/1kV POWERFLEX Ultra
Flexible, flame-retardant power cable for industrial use, halogen-free and easy to install.
0.6/1kV POWERFLEX Multicore
Flexible, halogen-free multicore cable for power distribution, flame-retardant and easy to install.
0.6/1kV POWERFLEX Plus
The universal cable for power transmission with improved fire proof properties.
0.6/1kV XTREM DN-F
Heavy-duty rubber cable, halogen-free, flexible, flame-retardant, for demanding industrial environments.
33kV X-VOLT AL (-OL/-2OL) RHZ1 (AS)
Unarmoured aluminium medium-voltage cable, halogen-free, for underground and overhead power distribution.
1.8/3kV POWERFLEX Ultra AC
POWERFLEX Ultra is designed and manufactured for the most demanding and stringent battery energy storage systems and grids installations.
11/36kV Asymmetrical Compact Separable Connector (RPCT-36A)
A range of compact separable connectors designed to connect small cross section 11kV & 33kV copper or aluminium cables to a type C1 interface 630 amp bushings on switchgear.
11/36kV Screened Inner Cone Connex Separable Connectors
A range of inner cone separable connectors designed for connecting screened polymeric cables to the inner cone Connex bushing. The Connex range is designed for the use in ring main units, Switchgear, and circuit breakers. Bushing sizes 0-3s cover a current rating of 250amp trough to 1250amp.
Standard Press Seal HRD SG b40 A2/EPDM
With segmented ring technology 80 / 100 / 125 / 150 / 200. Segmented ring technology for adjustment on-site to pipe diameters.
LV 4 Hole Tinned Copper Crimp Lugs
A premium range of 4 hole tinned copper crimp lugs that are designed to be crimped onto copper LV cables to facilitate the termination of cables onto the LV side of transformers.
A2 Polyamide Cable Glands
A premium metric range of polyamide PA 6.6 stuffing glands designed for use with unarmoured cables to provide retention and a seal at equipment entry.
Aluminium Trefoil Cable Cleats – Reliance
Premium range of Aluminium cable cleats suitable for single core cables in commercial and light industrial applications on cables systems with low to medium short circuit forces installed in trefoil formation.
Bare Soft Annealed Copper Tape
A range of soft annealed bare copper tapes that are used as high conductivity, corrosion resistant conductors as part of an earthing or lightning protection system.
Our accreditations
Power Supplies Group is committed to quality and we have achieved certification to ISO 9001: 2015, the globally recognised standard for quality management.
We are accredited with Constructionline, the UK’s largest online register for pre-qualified contractors and consultants to the construction industry.
We’re also proud to have achieved Cyber Essentials certification, reinforcing our ongoing commitment to cyber security, data protection and operational resilience.
Get in touch
Speak to our experts
If you’re involved in the design and delivery of power infrastructure and renewable energy assets, we can support you with specification and supply of matched cable systems.
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