Cegin BESS

Cegin Energy Storage is a proposed 100-megawatt (MW) battery energy storage system (BESS), located on land to the south of the B4547 at Seion / Pentir near Llanddeiniolen, Gwynned.

Project overview

Supporting a greener grid for generations

Cegin Energy Storage development will store clean, renewable energy for export into the national electricity system, helping to power homes and businesses across the country. The facility will store excess power and release it back into the grid during periods of high demand, helping to stabilise the electricity grid and support the UK’s transition to a net-zero future, ensuring energy independence during a time of significant international uncertainty.

Cegin Energy Storage will be temporary in nature, with an anticipated lifespan of 40 years, after which the site will be decommissioned and restored to its original state. Brockwell Energy has a proven track record of developing and delivering high-quality projects, and the development will be designed to the highest standards, complying with all regulations on noise, fire prevention, and safety.

Cegin Energy Storage will also include extensive landscaping, providing new habitats, visual screening, and delivering significant biodiversity benefits alongside the development

Current status: Planning application submitted

100

megawatt-hours of electricity storage

220,000

homes powered for 2 hours

Updates & milestones

March 2025

Planning application submitted

Q4 2025

Planning decision expected

Q4 2027

Construction begins

Q4 2028

Operations begin

Enquiries

For any questions or further information, please contact us at cegin@brockwellenergy.co.uk.