School Energy Saving Ed Horgan Briar Associates

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School Energy SavingEd HorganBriar Associates

• Free training for schools, provided by BRESEC on
  behalf of the Carbon Trusts Action Energy
  initiative.

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Fuel Use in a Typical School

• Fuel used(kWh)

Fuel costs
Fuel uses
Typical fuel prices
40heating
55gas, oiland coal
88gas, oiland coal
1.0p/kWh
11 hot water
12catering
23lighting
45electricity
5.0p/kWh
14other electrical
12 elec.
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Heating

• Over heating by 1º C can increase consumption by
  10
• Overheating of 3 to 4º C is not unknown
• 18º C recommended for classrooms
• 15º C recommended for gymnasiums, corridors and
  circulating areas

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Good housekeeping measures

• Check representative thermostat locations
• Dont use thermostat as on/off switches
• Check filters are regularly cleaned
• Dont place obstructions in front of heaters
• Use portable electric heaters as a last resort

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• Dont open windows to cool a room - turn down the
  heating instead.
• Dont leave outside doors and windows open when
  the heating is on.
• Use inner and outer doors in draught lobbies as a
  heat lock when going in and out.
• Remember extractor fans extract heat as well as
  air - turn them off as soon as theyre no longer
  needed.
• Check that outside doors and draught lobby doors
  close properly, including self-closing
  mechanisms.
• Replace worn or damaged draughtseals before the
  heating season starts.
• Keep a supply of replacement draughtseals in
  stock.

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• Zones Control Type
• East wing 3-port valve
• Hall Convector fan control
• Dining room 3-port valve
• West wing Convector fan control

Fan onvector with fan controller Radiator Three-po
rt valve
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School electricity consumption

• Electricity is often largest energy cost
• Lighting is the major component
• Electricity use is rising with increasing levels
  of ICT in the classroom

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Good housekeeping lighting

• Only use lights when daylight is inadequate
• Keep roof lights, windows and light fittings
  clean
• Label light switches
• Motivate users to switch off lights
• It is a myth that it is cheaper to leave
  fluorescent lights on

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Lighting control

• Switching arrangements
• Centralised time control
• Time delay/key switches
• Occupancy sensing
• Photocell control

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Daily Electrical Load Profile

• Electrical demand (kW)

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Good housekeeping, small power

• Photocopiers
• Drink Dispensers
• IT Equipment
• Catering Equipment
• Services - pumps, fans, immersion heaters

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