Worcester Acute Hospitals NHS Trust – EPC

Worcester Acute Hospitals NHS Trust – EPC


A large three-site NHS Acute Trust required significant investment in its estate to deliver cost and carbon dioxide emissions savings, as well as improve the building’s fabric and long term resilience.


Essentia’s leading Energy Performance Contracting (EPC) framework provided a fast-tracked and fully project-managed EPC process, which worked closely with the Worcestershire estates team to find the right supplier, ensure a financing solution was viable with limited capital availability, support the contract agreement stages and ensure that the Trust achieved value for money.


The project will deliver a wide range of energy efficiency measures including combined heat power capacity, boiler replacement, conversation to low-temperature hot water from steam and low energy lighting retrofit.

  • The work is guaranteed to deliver fuel savings of £660,000 a year
  • Carbon emissions will be reduced by 33% a year
  • Essentia supported the Trust to utilise )% interest financing

Essentia has huge experience helping Trusts fast track large-scale CO2 and energy savings projects and deliver best value for money. They have been instrumental in advising us on the process, supporting us through contract negotiations, ultimately helping us to find the right partner to progress the project.

Ray Cochrane, Head of Estates


St George’s University Hospitals NHS Foundation Trust

St George’s University Hospitals NHS Foundation Trust

The issue

St George’s University Hospitals NHS Foundation Trust had a target to deliver a minimum of 20% saving on utility consumption in in year one and also meet its obligation of a 10% CO2 reduction by 2015.

They needed to do this in a cost effective manner that would generate a return as quickly as possible within the constraints of a being made up of variety of aging buildings and running a 30-year old energy centre.

Our approach

We worked with the Trust to facilitate an Energy Performance Contract (EPC) with British Gas and Breathe Energy, two energy saving companies on the Essentia EPC procurement framework. The resulting £12 million project comprises a range of energy-saving measures including the installation of combined heat and power (CHP) engines and solar photovoltaics, as well as upgrades to heating and cooling infrastructure.

The EPC guarantees that the measures implemented will generate sufficient savings to pay for the project. Any additional savings gained after the contract ends revert to the Trust.


Over the 15-year contract, the Trust’s total energy costs will reduce by 25% and more than 6,000 tonnes of carbon emissions will be saved each year.

Financial savings to the Trust are estimated at more than £1 million a year.

“Working with Essentia to deliver our Energy Centre has added value throughout the project. Essentia’s ongoing support from inception through to the procurement stage has contributed to the success of this ambitious project which will deliver over £1 million in savings to the Trust each year”.

Rathan Nagendra, Energy Manager, St George’s University Hospitals NHS Foundation Trust