Department of Estates

The University's Power Stations

  • The University generates its own energy in a number of ways - one of these is through CHP (Combined Heat and Power)
  • There are 2 CHP engines, one for Chancellors' Building and The Quads residences, and another in the Sports Training Village.
  • The generate 2 million units of electricity a year, enough to power 600 houses.
  • The University also has several sets of solar panels (photovoltaic and solar thermal)

How it works - Combined Heat & Power (CHP)

CHP How it works

  • A normal power station is only 35% efficient- they have waste heat that can't be used. The National Grid also has electricity transportation losses.
  • CHP generates electricity on site - we can also use the waste heat locally as well as the electricity.
  • CHP has much lower losses and has an overall efficiency of approximately 80-90% resulting in less fuel consumption, less cost and less carbon emissions.

 How it works - District Heating system 2 (DH2)

  DH2 How it works

 The Chancellors' Building, The Quads student residences and The Lime Tree refectory are all fed by the University's new District Heating system (DH2)

  • DH2 = the boilers in the Chancellors' Building and a 250kW CHP engine in the main boiler house as well as a 30,000 litre thermal store outside (called DH2 as we also have a large District Heating system feeding all the main central campus buildings around the Parade)
  • The DH2 systems are linked to the buildings by over a kilometre of pre-insulated 200mm pipework
  • The Thermal store acts as a buffer to allow the CHP to run independently  of when there is a demand for heat. Complex control systems ensures the CHP runs as a priority rather than boilers, and also runs during 'Red' peak period (5-7pm) when electricity costs are highest
  • The CHP runs for on average 5000 hours a year and provides approximately 72% of the heating and hot water for the Chancellors' Building, The Quads and The Lime Tree. The boilers sre still needed to provide peak heat loads (eg. Monday morning in winter)

Benefits

  • The CHP generates 250kW electricity and 295kW of heat
  • It produces 1,250,000 units of electricity a year, 5% of Campus use
  • It saves 350 tonnes COannually and £75k in fuel costs

The University already has another CHP in the Sports Training Village it has operated since 1997 and generates 750,000 units of energy a year, enough to power 225 houses. The waste heat keeps the swimming pool and building warm which saves 90 tonnes COa year.

The University also has 200 solar panels on the roof of the Chancellors' Building providing a 46kW peak system (twice size of East Building system) which generates 40,000 units of electricity, and annually saves another 20 tonnes CO2 annually. 

Download the leaflet

Web Thumbnail Power Station