The solar array is proposed to consist of ground-mounted solar photovoltaic panels covering approximately 223 acres with a generating capacity of up to 49.9MWp. This will offset the annual energy needs of approximately 12,200 homes and save around 11,000 tonnes of CO2 .
The modular battery energy storage system (BESS) is proposed to allow the development to manage the export of power into the local grid to meet demand. Containerised units are commonly based on standard shipping containers approximately 12.8 x 2.4 x 3.5m and accompanied by a power conversion system.
Frames, Panels and Inverters
The solar panels will be installed on frames that are approximately three metres tall at the rear, and around one metre tall on their front, and fixed to the ground. The solar panels generate Direct Current (DC) electricity, which is converted by inverters to electricity with Alternating Current (AC) for export into the local grid. Inverter units (approximately 1m(h) x 70cm (w) x 30cm (d)) will be mounted on the rear of the solar arrays at intervals.
Approximately 10 transformer pairs (approximately 3.5m(h) x 10.5m(w) x 3m(d)) will be required to step the voltage. These will be distributed throughout the solar farm, sited by the internal access tracks.
The substation area (approximately 50(l)x60m(w)) will be located in the north-eastern part of the site, near the existing overhead electricity lines and main access track. It will include a customer substation building (approximately 3m(h) x 5m(w) x 2m(d)), which is required to export the energy from the transformers located around the panels in a single cable to the substation operated by the District Network Operator (DNO).
The DNO substation building (approximately 3.5m(h) x 4.8m(w) x 4.6m(w)) is required to meter the production of energy and export it directly to the local grid via the existing nearby overhead lines.
A transformer will be located in the substation area to increase the voltage to a suitable export level into the local electricity grid, whilst busbars will be used to conduct electricity and disconnectors installed to isolate parts of the substation.
All electrical cabling to the substation will be underground and the substation buildings will have a green finish to coordinate with the surroundings.
An existing field access from Bath Road will be utilised during both construction and operation. Access tracks will be established across the site, measuring approximately four metres in width, and comprising crushed stone over a geo-textile membrane, with no concrete required.
A fence will be installed around the perimeter of the development at a height of approximately two metres, consisting of wooden posts supporting traditional wire stock fencing. Mammal gates will be included along the length of the fence. The site will be monitored by inward facing CCTV cameras.