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Case studies

Milton Keynes Hospital Power Upgrade – Design Project Management

Professional Services

Project Value: £600k

Project Commenced: November 2020

Project Completed: October 2021

Client: NHS Milton Keynes


About the Project

Milton Keynes hospital required a full design and installation works to be undertaken for the upgrade of an existing substation. This includes a phased decommissioning of the existing 350kVA transformers and installing a new 500kVA generator, as well as increasing the footprint to accommodate the new equipment. These works include modifying the current architecture of the private HV site ring and undertake modification work to the LV electrical network, as well as undertake structural and civils work to increase the footprint of the new substation.  

These works include stripping out and removal of the existing distribution equipment / cabling, which forms part of the existing electrical infrastructure, undertake a full outline and detailed design, supply, assembly, installation, connection and testing of the new HV/LV equipment, switchgear, protection, cabling, cable containment and earthing system.  

BCM Construction who are undertaking the installation works and partnering with external design partners undertaking the full design, requested that Equate Design were brought onboard to undertake the Design Project Management works to manage the design works through to completion and to help facilitate the smooth transition / commencement of the installation works.


The Challenge 

Future proofing of the system, a new scope had to be defined in line with a limited budget at the beginning of the project 

BCM Construction and Equate Design, along with its design partners have worked to an ambitious programme to achieve the client’s desired commissioning date, taking into account the changes to the design remit, procurement of long lead items and installation works.


The Solution 

Following initial discussions at the beginning of the project, Equate Design led the exercise to review the current remit and requirements and worked closely with the Client, BCM Construction and the Designer to draw up a new set of requirements so to future proof these works, while attempting to minimise any adverse impact on the programme commissioning date as set out from the start and working to a limited to budget for these works.

The key to accommodating the change of scope, placing orders of long lead items as the design was progressing and planning the installation works so to minimise delays to the client’s desired commissioning date, was the risk management aspect of the design process. Mitigating delays was only possible due to the close collaborative working relationship between the Client, BCM Construction and Equate Design, along with its design partner. This led to many informal reviews on different aspects of the design and equipment / product proposals in advance of the formal design submissions. This helped facilitate the procurement process and reduced delays to starting works on site, which was planned in line with the delivery dates of the long lead equipment items. 


The Deliverables:

Full Civils (including Drainage) and Electrical Design, Supply and Installation of:

  • New LV Panel
  • New 500kVA Generator
  • Two new 1250 kVA transformers with associated Ring Main Units (RMU’s) and LV breakers
  • Control and Protection Equipment. These include; batteries, relays, chargers, RTU’s, cabling and auxiliary wiring
  • HV Cables, jointing and associated ground works
  • HV and Emergency tripping cables
  • Substation locks / access system
  • Substation concrete base, including entry ducting and all cable ductwork
  • Earthing solution for the substation to meet current standards
  • Bonding solution for the new substation
  • Building services, including lighting, power and heating / de-humidification