PLANS have been submitted for battery energy storage systems at a Welsh Government building in Merthyr Tydfil.
The application submitted to the council by Welsh Government is for its offices at Rhydycar Business Park.
It would see battery energy storage systems (BESS) installed and associated external plant equipment within the existing plant compound including the erection of replacement enclosures and associated works.
The proposals involve the installation of three battery energy storage systems within the existing plant compound located to the south of the energy centre building.
Each unit will have a power output of 125 kW (kiloWatts) and a storage capacity of 261 kWh (kiloWatt hours).
Each unit would be 1,050mm in width, 2,250 mm in height, and 1,400 mm in depth.
The existing plant compound enclosure will be replaced by a new 1.8 m-high green V-mesh fence matching the existing security fencing on site.
Associated works include the installation of one inverter which will be mounted on the south-facing external wall of the energy centre building and housed within a steel enclosure.
The inverter measures 647mm (width), 629mm (height), and 252mm (depth).
The proposals will utilise the existing ducting between the energy centre and the UPS room within the main office building to accommodate three new 100mm cables.
The application says: “The proposed development will improve the operational efficiency of the existing office building by enabling the on-site storage and management of electricity.
“The installation of battery energy storage systems (BESS) will allow excess energy, particularly that generated by the existing and proposed solar photovoltaic panels, to be stored and utilised during periods of higher demand.
“This will reduce reliance on grid-supplied electricity, improve energy resilience, and optimise energy consumption across the site.
“The proposals will also facilitate demand-side management, enabling a reduction in peak electricity usage and associated costs, thereby enhancing the overall performance of the building.”
