Farrans Berkswell BESS: design and grid resilience insights for engineers
Reviewed by Tom Sullivan

First reported on The Construction Index
30 Second Briefing
Construction has begun on a 200MW/857MWh battery energy storage system at Berkswell, near Solihull, being delivered by Sisk-owned Farrans for BW ESS, part of the BW Group. Designed to supply over 500,000 homes for four hours, the grid‑scale BESS will provide flexibility and resilience close to major electricity demand centres, supporting integration of variable renewable generation. The project is co‑owned with AIP Management, signalling continued investor appetite for large, strategically located storage assets in the UK.
Technical Brief
- Client entity is BW ESS, the BW Group’s dedicated global energy storage developer, owner and operator.
- Asset is co-owned with AIP Management, a specialist energy and decarbonisation infrastructure investor.
- Energy-io is named as a key project partner alongside BW ESS in delivery of the scheme.
- Farrans references a portfolio including multiple wind farms and substations across England, Ireland and Scotland.
- Project manager Barry McDonagh emphasises a ramp-up in programme activity as site operations progress.
Our Take
At 200 MW / 857 MWh, the Berkswell Battery Energy Storage System sits at the upper end of UK grid‑scale BESS schemes in our database, signalling that BW ESS and BW Group are positioning for multi‑hour balancing rather than just short‑duration frequency response.
Farrans’ role on Berkswell BESS follows its work on RWE’s Camster II onshore wind farm and multiple UK airport upgrades, indicating the contractor is building a portfolio that spans both renewable generation and enabling infrastructure, which can be attractive in future integrated energy tenders.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
Related Articles
Related Industries & Products
Construction
Quality control software for construction companies with material testing, batch tracking, and compliance management.
Mining
Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.
QCDB-io
Comprehensive quality control database for manufacturing, tunnelling, and civil construction with UCS testing, PSD analysis, and grout mix design management.


