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30 June, 2013 - 23:49 By News Desk

Cambridge spearheads UK energy reduction fight


A new network of public and private sector organisations aims to carry out retrofits across Cambridge, bringing down carbon emissions, cutting energy costs, and helping to make it the first city to meet the UK Climate Change Act carbon reduction target of 80 per cent by 2050.

The Cambridge Retrofit Project will function partly as a social enterprise and partly as a professional delivery service. It has set itself the formidable task of supporting the retrofits of around 20,000 private homes and another 20,000 non-residential properties before the mid-way point of the 21st century. These will include Victorian terraces, modern shopping centres, and the medieval college buildings of the city’s 804-year-old university.

Businesses and residents are being urged to sign up through a newly-launched website – – where a full list of the many organisations already involved can also be found.

Retrofitting essentially means adding new technologies and features to a building to increase its energy-efficiency and reduce its energy consumption. In practice, that can involve the introduction of measures such as loft and cavity wall insulation, enhanced window glazing, draught-proofing, energy-efficient lighting and improved boilers. The result is reduced energy consumption and carbon emissions, but the programme also aims to build up local businesses, create warmer homes and increase the value of properties.

Making those improvements throughout an entire city – especially one which, like Cambridge, has a daunting range of buildings dating back to the Middle Ages – will require a huge community effort that cuts across public and private sectors.

The total cost of retrofits over the course of the programme is expected to be circa £1 billion. The project team calculate, however, that the energy-savings that result will be worth more than £1.5bn.

The environmental payoff will be even greater – the city’s carbon footprint, currently 830,000 tons of CO2 a year is expected to decrease at a rate of about one per cent a year, eventually falling to about 500,000 tons of CO2 per annum as a result of the retrofit programme.

Since 2012, organisations from across Cambridge have been drawing up plans that will enable the project’s leaders to stimulate demand for retrofits, and then bring that together with financial support and delivery services. The process has involved local planners, building firms, property managers, housing associations, lawyers, engineers, architects and researchers, as well as national government offices and English Heritage.

Supporting research and monitoring will be undertaken by the University of Cambridge’s Centre for Climate Change Mitigation Research and its academic partners. Overseeing this will be a group of 30 public and private sector partners, chaired by the former leader of Cambridge City Council, Sian Reid. This group will be responsible for monitoring the unit’s performance and ensuring that it is acting in the best interests of the community.

Professor Douglas Crawford-Brown, director of the Cambridge Centre for Climate Change Mitigation Research, said: “It’s a huge challenge but if we are going to achieve the ambitious carbon reduction targets that the UK has set, then we are going to have to learn how to run projects of this scale.

“Crucially, our plan is to ensure that the business of retrofitting Cambridge’s buildings is demand-driven. Other attempts at initiatives like this have tended to work on the assumption that if a programme to make large-scale changes like this is created, people will use it.

“Our view is that you don’t start supplying until you’ve got the demand. Our first objective is to get big estate-holders involved.”

The initial focus will be on the non-residential sector – the estates of the City and County Councils, property firms, schools, universities and the University of Cambridge Colleges. These organisations are considered prime targets for retrofits because of the cost-saving benefits.

“Our approach is that we’re not here to save your soul and we don’t care why you’re doing it, so long as you’re doing what needs to be done,” Crawford-Brown added.

Several inaugural beacon projects are being prepared by the project team with a view to giving the scheme some initial momentum. They will include at least one college building, one commercial building, a local authority office and a University of Cambridge building.

• PHOTOGRAPH SHOWS: King’s College, Cambridge

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