Welcome toCastle Road Battery Storage
Castle Road Battery Storage is a proposal for a Battery Energy Storage System (BESS) and associated infrastructure, with a proposed storage capacity of up to 440MW. The proposed development is to be located on land north of Castle Road, Burton, Rhoose requiring a planning application to be submitted to Vale of Glamorgan Council.
The proposal consists of a development area of approximately 8.5 acres (3.4 hectares), with the area within the red line boundary being approximately 26 acres (10.5 hectares).
A grid connection has been secured with National Grid Electricity Transmission (NGET). It is proposed to connect to the substation via underground cable.

Battery storage has an important role to play in supporting the decarbonisation of our energy supply as it provides a balancing mechanism to reduce the risk of power shortages, blackouts and optimises the use of renewable energy generated. In periods when electricity supply outweighs the demand, the proposed development would provide the capacity to store electricity, which would otherwise be wasted. It will then return electricity to the national grid when baseload supply falls below the level of demand and there would otherwise be an electricity shortage.

We are progressing with design development, environmental and technical assessment work and have consulted with the public and local stakeholders. All comments received during the consultation will be considered when finalising the design and site layout of the development prior to submission of the planning application.
We held a public exhibition to share information about our plans and seek feedback from stakeholders and the local community. This drop-in event was held at:
Rhoose Community Centre, Stewart Road, Rhoose, CF62 3EZ on Thursday 13 March 2025 from 1pm to 7pm.
You can view the draft planning application and consultation materials here.
Timeline
Pre-application advice
2023/2024
Pre-application advice and screening request submitted to Vale of Glamorgan Council
Surveys
2023/2024
Surveys and development of early scheme proposal
Pre-application consultation
February 2025
Pre-application consultation with local communities and stakeholders commenced
Planning application submission
Spring 2025
Planning application submission to Vale of Glamorgan Council
Construction to begin
2028
Construction to begin, connecting to the national grid in 2029
