The University’s
Energy Challenge
Warwick Network 2008
Nick Hillard, Environment Manager
The University’s Energy Challenge
 Existing Energy Management
 Future Challenges
 Warwick HRI – some good news
 2 brainstorming exercises to capture
your ideas
Brainstorm 1
 Working in pairs
 Discuss your domestic energy situation:
 Energy provider
 Annual costs / recent increases
 Energy conservation measures
 Be prepared to share the findings with the
group
Energy Management
“..I would particularly urge
everyone to reflect on energy use
and make special effort to turn off
PCs and lights when not in use”
Prof. Nigel Thrift, Vice-Chancellor (14th October 2008)
Energy Use
 Consumption = c.180 million kWh
 Energy spend = c.£8 million
 Circa 2% of turnover
 Carbon footprint = c.42,000 tonnes CO2
 Overall target to reduce CO2 footprint by
- 10% by 2010/11
Energy Use
University of Warwick Main Campus - Total Energy Consumption
180
Use (GWh)
Total energy
Consumption
(GWh)
160
140
120
100
80
60
40
20
0
1995/96
1996/97
1997/98
1998/99
1999/00
2000/01
2001/02
2002/03
Year
Year
2003/04
2004/05
2005/06
2006/07
2007/08
Energy Costs
As of 1st Oct 2008
Energy Management
 Energy audits since the 1980’s
 Collaborative work between academia
and University administration
 HE Carbon Management Programme
 BREEAM Excellent Target on new builds
 Strengthening of energy team
CHP and District Heating
 Electricity generation (4.7MWe), heating, hot water
and chilled water (14.1MWth)
 Capital costs of circa £5M (annual savings in the
region of £1M pa.)
 >16km u/g pipework covering c.60%
 Maintenance costs less cf. stand alone plant
 Optimisation of system includes thermal storage,
increasing of summer heat load and ongoing
system balancing.
Food for thought …
5no. 1kW wind turbines
5 tonnes per annum
Scheduling 1no. CHP
engine to switch off
between midnight and 5am
25 tonnes per week
Food for thought …
 2kW fan heater is equivalent to running more
than 100 compact fluorescent lights
 The standby cost of a vending machine can be
£255pa (cf. an overall energy cost of £268)
 500W halogen flood lights can be replaced by
60W low energy alternatives
 A computer monitor left on standby cf switched
off costs up to £10pa.
Future Challenges
 Campus development - business as usual:
 Power : 12MWe
=> c.£3,000,000
 Heat : 6MWth
=> c.£1,000,000
 Water : 150,000m3
=> c.£250,000
 Carbon dioxide emissions => c.50%
The Future
 Planned additions to the network
 Complete “ring” through Warwickshire land
 New energy centre on Warwickshire land
(biomass fuelled)
 More absorption cooling for summer
 Replacement of stand-alone boilers
 Continue to focus on energy conservation
Energy Saving Initiatives
“7% reduction in electricity use”
“45 pledges
received”
“CIBSE Campaign”
“Be an Energy Scrooge
this Christmas”
Energy saving initiatives
Student-led
environmental action
week – showcases,
seminars, petitions,
parties etc
“StudentSwitchOff”
- 8.6% average reduction
->500 tonnes CO2
The Carbon Academy is an NUS Services project, supported
by NUS, People and Planet and the Environmental
Association of Universities and Colleges.
Brainstorm 2
 Working in pairs/threes
 Consider your own work area / general university
operation
 Identify potential projects in the following areas:
 One quick-win electricity saving projects
 A high profile renewable energy “showpiece”
 One “Off the wall” initiative
The University’s Energy Challenge
 Existing Energy Management
 Future Challenges
 Warwick HRI – some good news
 2 brainstorming exercises