Saving Energy In Schools

Okehampton College - Devon

What is Okehampton College doing to minimise energy losses in energy transformations?

• BTEC Level 2 Applied Science

• Energy and Our Universe

• Task 4

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Building Management System

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Steps Being Taken

• Ask people to use less energy / be less wasteful.

• 3,000 efficient lights (T5 conversions) fitted.

• Increased levels of insulation.

• More efficient gas boilers fitted

• Moved radiators about .

• Installation of renewable energy systems.

• Smart metering / better diagnostics.

• Formation of staff/student energy groups.

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People – behaviour change

• People make the most difference

T5 Fluorescent tubes – 3,000 fitted

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T5 lights produce more light and less heat meaning that less electricity is needed to produce the required light.

More efficient – they use 50% less electricity but produce 20% more light than conventional fluorescent tubes.

Increased insulation

• Cavity wall and loft insulation added.

• This contains trapped air which reduces heat loss.

• Less energy is then needed to heat the building.

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More efficient boilers

• More efficient central heating boilers fitted meaning that a higher % of heat gets delivered to the building instead of going up the chimney.

• Flow temperature compensation – as the building warms up the temperature of the water in the radiators drops. This stops the rooms being overheated which saves gas.

• Both of these measures result in less gas being burnt so leading to less atmospheric emissions.

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Move Radiators

• Take radiators out of the hot rooms and put them in the cold rooms.

• Evens out the heat demand – stops people letting excess heat out of the window.

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Renewable Energy Systems

• Solar PV & soon wind turbines (small scale).

• Generation of your own electricity makes you use it more wisely and less fossil fuel energy is needed – an environmental benefit.

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Monitoring what we use…

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Electricity dashboard (Click the link on the left)Gas LoggingZone and Room Monitoring

Does it Work….• Annual savings of around £25,000 on electricity already.

• Within a year additional measures should eliminate the electricity bill.

• Gas consumption should fall sharply in the next year due to smart metering and more efficient boilers.

• The energy bill was £120,000 but soon it could be just £30,000

• But people using energy wisely makes the most difference.

• 1 person wasting 1p an hour will waste £100 in a year.

• 100 people doing this will waste £10,000 in a year.

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Dashboard

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Gas AMR graphs

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Room Monitoring

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Room Level

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Person 2 metres

Our turbine 18 metres hub height

Big Turbine 80 metre hub height