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Our progress so far

Our sustainability progress to date has been productive – we have cut significant amounts of carbon (alongside benefitting from a ‘greening’ of the national power grid) and reduced operational budgets whilst contributing to CUH being an even better place to work.

Environmental Sustainability work to date

We have been working to make our services more environmentally sustainable for many years.

Outline of the progress made so far, including 25% of staff cycling to work and 2,700 tCO2e reduction from energy projects since 2010

Highlighted below are some of the projects we are currently working on and scaling up to deliver real benefits and savings.

Energy & Sustainability Manager Richard Hales shares how CUH is helping the NHS lead the fight against climate change with ground-breaking new technology


Video transcript

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My name is Richard Hales,

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I’m energy and sustainability manager here at the Trust.

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I’m going to talk to you today about some work we’ve been doing here

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at the Rosie as part of our overall drive to reduce the carbon footprint

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of the whole of our estate in terms of energy use.

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What we've been doing here up on the roof, is putting

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some photovoltaic solar panels up there.

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We put up

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quite a few panels two years ago, around 33 kilowatt output.

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We've connected those directly

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to the chiller plant, one of the chiller plants is up there.

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It runs by a direct current route through to that chiller

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where it is controlled by a very clever bit of power electronics

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that allows us to either store some of that energy, if the chiller plant

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doesn't need it, in some batteries.

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And also it controls the energy coming from the mains

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grid, which it would normally be powered by.

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So that we get the right mix, the optimum, the lowest carbon

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mix possible to run that chiller as efficiently as possible.

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We really are squeezing every kilowatt hour

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to the most efficient way we possibly can.

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We did that a couple of years ago and that's worked really well.

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It's been a great bit of kit and very successful for us.

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It's probably reduced the energy demand and lowered

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the carbon footprint about 40% on that bit of plant.

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About a year ago, we put it in for some public sector

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decarbonisation scheme money from government,

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we were successful in that, and so we've taken

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the same type of technology, but this time used it

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to run a heat pump down on level one of the Rosie.

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Again, we put some more photovoltaic panels up on the roof

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to provide some green power to it.

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The great thing about the heat pump is that it's replacing a chiller unit.

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So that will provide us with chilled water

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for air conditioning within the Rosie.

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But when you produce chilled water, you also end up

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generating some heat because you've cooled it, you've taken the heat out of it.

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What we've done there is take that heat and used it

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to warm up the domestic hot water going into the Rosie,

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so again, we really are squeezing every single bit of energy

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we can out of the electricity that's

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going into that heat pump.

Our Action 50 Green Plan (opens in a new tab) takes CUH’s learning and experience into a fully reframed response to what and how we consume.

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Our vision for change

Go to our vision for change
Aerial view visualisation of how the Babraham Park and Ride site will look when the solar panels have been installed over the parking bays