Showcase | Battery Energy Storage System | Cowstead Battery Storage

Published 20 Jun 2022

Renewable Energy Battery Storage

Battery Energy Storage System

Eclipse Power Networks were appointed by Sembcorp Energy UK (Formally UK Power Reserve) as the Independent Distribution Network Operator (IDNO) for the 50MW Battery Energy Storage System Site (BESS) at Cowstead in Sheerness, Kent.

Cowstead Battery Storage

The battery energy storage site is connected directly to the UKPN network via their existing 132kV Overhead Line (OHL) Network. A new UKPN 132kV disconnector was required to be installed beneath the OHL Point of Connection (PoC) as part of the contestable works.

Eclipse Power adopted the 132kV cable from the new disconnector to the 132kV metered Point of Supply (PoS).

An IDNO 132kV substation, incorporating 132kV earth switches, disconnector and dead tank circuit breaker, completed the IDNO adopted network assets that feed a client adopted 132/33kV 40/50MVA ONAN/ONAF transformer and 33kV GIS substation adjacent to the IDNO compound.

The Sembcorp network assets facilitate their 50MW BESS assets, which nearly doubles their UK battery storage portfolio.

Cowstead Battery Storage

Battery Energy Storage System

Project Challenges

The project had consent challenges which Eclipse helped to resolve quickly and efficiently. Such challenges are unlikely to have been resolved as efficiently, had the client elected to use the DNO to adopt the Contestable Works.

What is an IDNO?

Independent Distribution Network Operators (IDNOs) are OFGEM licensed companies that develop, design, own, operate and maintain local electricity distribution systems within the DNO network.

IDNOs are connected to Distribution Network Operators (DNOs), either directly, or through other IDNOs. They carry power to homes and businesses around Britain. Unlike DNOs, they’re not bound to any specific geographical region and can therefore offer their services to a wider range of customers.

IDNO Vs DNO

If you are looking to use an IDNO on your next project, please get in touch with Eclipse Power Networks:


Eclipse Power Networks

About Eclipse Power Networks

Eclipse Power Networks are a licensed Independent Distribution Network Operator (IDNO) who provide clients with an effective alternative to using the local Distribution Network Operator (DNO).

Working within the UK Energy industry, we design, own, operate and maintain licensed electricity distribution networks across the UK.

Our team of specialist Electrical and Civil Engineers have extensive experience of working within the electricity supply industry at voltage levels up to and including 132kV, based out of our Head Office in Buckinghamshire.

We can offer Developers, Contractors and ICPs several significant benefits over the standard DNO connection to the National Grid.

We work across a variety of sectors including (but not limited to):

  • Battery Storage
  • Data Centres
  • Electric Vehicle (EV) Infrastructure
  • Industrial & Commercial Developments
  • Residential Developments

THORNE & DERRICK

T&D are Specialist Distributors to UK Distribution Network Operators (DNO’s), NERS Registered Service Providers, ICP’s and HV Jointing Contractors of an extensive range of LV, MV & HV Jointing, Earthing, Substation & Electrical Eqpt – this includes 11kV/33kV/66kV cable joints, terminations and connectors for both DNO and private network applications.

Contact our UK Power Team for competitive quotations, fast delivery from stock and technical support or training on all LV-HV products.

Key Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV 

T&D are Specialist Distributors to UK Distribution Network Operators (DNO’s), NERS Registered Service Providers, ICP’s and HV Jointing Contractors of an extensive range of LV, MV & HV Jointing, Earthing, Substation & Electrical Eqpt – this includes 11kV/33kV/66kV cable joints, terminations and connectors for both DNO and private network applications.