Design
Outline design
We are still working on the detailed design. It is likely that it will be constructed in up to two areas to the north and south of the site.
The EBI is proposed to be housed in either modular buildings or containers designed to minimise noise and maximise safety. The building height will be less than 15 m.
The Ørsted EBI will comprise energy storage technology, which is likely to be lithium-ion (Li-ion) batteries, energy conversion technology such as power converters, and associated control systems and balance of plant equipment such as transformers and switchgear, external lighting and cables to connect it to the substation.
Detailed design
Ørsted is committed to the principles of good design, which will focus on the siting, visual impact and external appearance across the substation site (marrying the design of the Hornsea Three Onshore Converter substation and the EBI within the landscape). The design will respond to the site characteristics, thereby respecting the site’s rural/urban fringe location and local planning policies. These principles will extend to and take consideration of effective site landscaping; high-quality designs for the outer fence, single-point site access gate and aspects such as signage, façades and cladding materials, including colour and layout; and using sustainable drainage systems. This approach aims to mitigate any ecological, hydrological, landscape, heritage and visual impacts, and adverse impacts on the Norwich Southern Bypass landscape protection zone in particular.
Ørsted has commissioned various surveys and assessments to inform and facilitate the design and submission of the planning application, and the key findings of these can be found in section “The scheme” and below.
Landscape visualisations
The visualisation below is provided as a guide only to how the proposed EBI system components on site may look once developed.

Design considerations
In the schematic below, we show the approximate site arrangements proposed. We also provide some examples of the elements and types of choices that the detailed design process will consider and welcome your feedback on (though we are not committing to the examples provided at this stage). To view the detailed elements, click on the blue text boxes.
We also provide some examples of the elements and types of choices that the detailed design process will consider and welcome your feedback on (though we are not committing to the examples provided at this stage).
To download a pdf click here.