The Client

Addenbrooke’s Hospital is part of Cambridge University Hospitals NHS Foundation Trust, one of the largest and best known in the UK and a world-renowned teaching institution.

It is a leading national centre for specialist treatment, a government-designated comprehensive biomedical research centre and is one of only six academic health science centres in the UK.

The Brief

Addenbrooke’s Hospital has been at the forefront of NHS initiatives to reduce both energy usage and carbon emissions. SaveMoneyCutCarbon has partnered with Addenbrooke’s for more than three years on a range of lighting upgrades.

The brief is now to roll-out an extensive LED retrofitting programme for at least the next 12 months following the Trust’s successful grant-funding bid to the NHS Energy Efficiency Fund via NHS Improvement.

Addenbrooke’s is now embarking on the full large-scale LED lighting retrofit programme and SaveMoneyCutCarbon won the YPO public sector procurement competition as an approved provider for the framework.

Addenbrooke’s expects auditable energy savings of 867MWh a year with annual £148,000 savings in electricity and maintenance and payback on investment of no more than 4.8 years. Total annual carbon reductions are also expected to be 305 tonnes of carbon dioxide equivalent (CO2e).

The Solution

The large-scale project includes scope, survey, design, cost and supply and installation of mainly like-for-like fluorescent to LED replacement of around 7,000 luminaires in at least 18 buildings.

This project is being phased over a 12-month period and includes detailed survey work, a high quality specification and out-of-hours installation (overnight and weekends).

SaveMoneyCutCarbon has developed a strong working relationship with Addenbrooke’s, and has already delivered 11 substantial lighting projects, with hundreds of LED lamps installed, as well as providing supply services for the hospital.

Annual savings of £148,000 from energy saving solutions
Carbon footprint reduced by 65.69% with LED lighting

For each of these projects, comprehensive surveys and detailed reports were provided, showing energy savings, impact on spending, payback periods and carbon emissions reductions.

For the majority of the LED retrofits the work needed to meet Salix funding criteria, with sustainable and effective energy savings that ensured return on investment within five years, to qualify for implementation under this long term revolving fund.

Salix provides interest-free capital to public sector organisations for energy efficiency and carbon emissions reduction. Repayments are covered by savings through reduced energy costs.

The SaveMoneyCutCarbon installation team are fully DBS-checked and received a comprehensive Addenbrooke’s induction before starting LED retrofits.

A major feature of many projects was to ensure that lighting was not being left on in areas that were unoccupied for long periods, introducing motion sensors for presence detection where appropriate.

Energy usage reduced by 867MWh a year
Payback in 4.8 years

In some projects, there was a requirement for high-performance lighting controls that could deliver reductions of up to 70% in energy use.  The user-programmable lighting control system installed does not require specialist attendance to repair and programme.

Where needed, the new LED lighting was selected to meet with anti-glare requirements, having a Unified Glare Rating (UGR) of less than 19 – particularly important in office and administration spaces where staff may have to spend many hours a day and are likely to be using display terminals for a significant proportion of that time.

And for every project there was an emphasis on the requirement for quality fittings and exceptional installation routines that would minimise ongoing maintenance costs.

The Challenges

Within the busy hospital environment, it is essential to work around staff and processes. The installation team worked closely with hospital managers to plan and carry out upgrades at the most appropriate times, which has included and will continue to demand out-of-hours engagement.

Lighting design is also a complex element of any work in the healthcare sector in order to balance the needs for most appropriate lighting levels combined with controls and sensors as needed to maximise efficiency and further reduce costs.

“This large -scale LED project provide big improvements in the quality of the hospital environment for clinical practice, patient experience, operational and administrative functionality."

“As always, the emphasis is on quality patient space, reducing costs and improving environmental sustainability while ensuring compliance and meeting best-practise guidelines. At all times, the project will ensure patient, staff and visitor site safety.”

Richard Hales, Energy & Sustainability Manager at Cambridge University Hospitals NHS Foundation Trust

“Winning the tender for the large-scale LED retrofit project is a testament to our ability to deliver complex lighting contracts in the healthcare sector."

“We have established an excellent track record with Addenbrooke’s that has provided energy reduction in sustainable and effective ways. The Cambridge University Hospitals Trust will continue to benefit from greatly reduced energy costs for many years to come “Our ability to develop effective communication channels with relevant managers has proved essential in planning and execution. We’ve also worked hard to ensure that there are processes in place to give technical support and advice while rapidly resolving any issues.”

Holden Cook, Director of Consultative Services at SaveMoneyCutCarbon:



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