These jobs are the first wave of projects to come from a £200m framework agreement that aims to reduce the carbon footprint and energy used by NHS Trusts.

The first phase is valued at £100m, with as much again to follow, the four-year framework, supported and approved by the Carbon and Energy Fund.

Both firms are bidding for the task of upgrading five hospital estates worth up to £23m , with a further ten preparing for late 2011 and first quarter 2012.

Altogether ten firms have been shortlisted to the NHS Trust energy saving framework. They are: Balfour Beatty  Cofely  Cynergin  Dalkia  EnerG  Interserve  MCW  Mitie  Total Gas and Power  Vital Energi

Bob Vince, managing director, Interserve Strategic Partnerships, said: “If considerable cost savings can be made for the NHS, through projects within the framework, then health service resources can be re-directed into other key areas.

“This framework is exciting for Interserve, as it gives us the opportunity to secure energy saving projects that meet the needs of our customers and expands our skill sets into this new and growing market.

Interserve will be providing either single or integrated technical solutions, including amongst others; CHP (combined heat and power), absorption cooling, biomass, wind and water turbines, anaerobic digestion, insulation, voltage optimisation, building management system upgrades, lighting, zoning, solar hot water, solar photovoltaic and behavioural change.

Clive Nattrass Programme Director for CEF said: “The Carbon and Energy Fund, working with NHS SBS, is pleased to confirm that Interserve is one of the successful companies joining us on this important framework, working in partnership to deliver energy infrastructure upgrades over the next four years.

“The Fund has high hopes that Interserve’s demonstrable experience in energy rationalisation and management will make a positive impact in what has to be achieved within our market place.”