Case study: An energy strategy that delivered big utility savings

Radisson Blu.

Case study:

Making a Blu hotel as green as possible

The Challenge

The Radisson Blu at East Midlands airport is no ordinary 218 bedroom hotel. At the time of its launch in 2011, it achieved the highest ever BREEAM rating for a UK hotel, giving it a claim on being the UK’s greenest hotel. Officially graded as ‘Excellent’, the hotel’s status is down to a 285kW bio-oil Combined Heat and Power (CHP) system. It uses waste bio-oil generates enough electricity to support the hotel, including swimming, conference and leisure facilities. In turn, waste heat from this process is captured as a primary source of heating and cooling for the property.

There was just one problem. When the Azure Group, the hotel’s operator, took over the building, the utility costs didn’t reflect the savings they expected from the UK’s greenest hotel. It’s not unexpected for short-term issues to occur with new, groundbreaking technologies. But when the hotel wasn’t operating as expected after 2 years, they sought an expert partner to find out how to maximise their efficiency.

We helped Radisson Blu with an energy strategy that delivered big utility savings.

“Our two major challenges in taking this building on was one not knowing where the utility baseline should be set for such a unique new building and two whether our building services were actually running as designed. Optimised Buildings have helped us get through these challenges with their technical expertise, analytical solutions and managed services. We are now in a great place to run our hotel as efficiently as it can, ensuring our utility costs are operating as low as they can.” Daniel Keane – General Manager Radisson Blu Hotel, East Midlands Airport

The Solution

Optimised Buildings were commissioned for two purposes: identifying the cause of the issue, and ensuring better performance for the future.

A common issue presents when a building uses pioneering technology: a lack of historical data. Before we could optimise performance, we needed a baseline.

We began with extensive monitoring of the hotel’s systems, and their consumption:

  • Heating, ventilation and air conditioning (HVAC)
  • Building energy Management Systems (BeMS)
  • Absorption chiller
  • Combined Heat and Power (CHP)

Using connected metering, consumption data was pushed to our intelligent, cloud-based monitoring and analysis platforms: “Optimised Energy” and “Optimised Analytics”.

These bespoke solutions allow us to not only create baseline data and identify anomalies in performance, but accurately measure the impact that our changes made.


The Results

We then began the optimisation. As efficient as the technologies in the hotel were independently, they didn’t work together well. This led to increased wastage and operating cost. As a result, we specifically tuned the CHP system to work alongside the Absorption Chiller, BeMS, boilers, and electric chillers.

To ensure the performance was maintained and maximised going forward, we implemented a remote managed service. Using this, we can monitor and commission systems as needed to ensure that consumption is as efficient as possible.

Our hands-on optimisations, in tandem with our managed optimisation strategy, have brought significant savings to the hotel. Notably an overall reduction of 30% kWh consumption across electricity and gas, and a 17% reduction in electricity consumption.

You can find out more about this project, and more like it, by contacting us today.

If you would like to speak to a member of our team about your requirements, please contact us on +44 (0)1708 865 855 or email us at

Or click on one of the following to read more about:


Back to Top