Post on 20-Jul-2015
Open Module Sustainability
Energy, climate change and BSU
05 November 2013
Dr Julian Greaves
Sustainability –
What’s it all about and what are we doing about it?
05 November 2013
Sustainability – the root of economics
http://en.wikipedia.org/wiki/File:Sanzio_01_Plato_Aristotle.jpg
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Oiconomiamy friend
You wot?
Management of the resources of the household for the benefit of all
its members over the long term
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A business for the future
Mission Zero so far
• Cut Greenhouse Gas Emissions by 94%
• Cut fossil fuel use by 60%
• Cut waste by 80%
• Cut water use by 80%
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Mission Zero – Take nothing from the Earth that cannot be replaced by the Earth – Zero impact by 2020
Mission Zero so far
• Increased sales by 66%
• Doubled company earnings
• Increased profit margins
Business lessons from a radical industrialist – Ray C. AndersonISBN 978-0-312-54455-3
Why Energy Matters
• Fossil fuels, electricity and climate change
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Why energy matters - Electricity production from fossil fuels
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Electricity production
- 38% efficient
Grid electricity 0.54 kg CO2 kWh-1
(Natural gas – 0.19 kg CO2 kWh-1)
BSU NP 2012/13 – 2,316 MWh elec = 1,250 t CO2
So, What’s the problem with fossil fuels? – The greenhouse effect
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Global warming impacts (some)
Sea level rise
Oceanic acidification
Changing rainfall patterns
Permafrost melting
Glacial retreat
Desertification
Forest fires
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Sea Level Rise
05 November 2013
http://www.climatechange2013.org/images/uploads/WGIAR5-SPM_Approved27Sep2013.pdf
1 metre sea level rise
05 November 2013
Energy management:
A strategic approach
At BSU
05 November 2013
Management support
Behavioural change
Reduced emissions
Technological solutions
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Management support –Policy
Review –
Report progressPropose next
phase
Check –Monitor
performance
Do –
Implement technologies
and behaviour changes
Plan –Collect data
BaselineSurvey buildings
Set a targetMake a plan
Plan
Baseline (2005-2008) – 4,000 tonnes CO2 / y
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Survey the Estate
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Apply the Energy Hierarchy
Loft and wall insulationPipe lagging
Draught proofingBMS control settings
Efficient boilersSmart lighting
Super low loss transformers
Biomass heatingSolar PVWind?
Set a target
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• Target – 2,000 tonnes CO2 / y
• By 2020
• 50% reduction
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Make a plan
0
1000
2000
3000
4000
5000
Baseline prj Yr 1 prj Yr 2 prj Yr 3 prj Yr 4 prj Yr 5 prj Yr 6 prj Yr 7 prj Yr 8 prj Yr 9 prj Yr 10 prj Yr 11 Target
Ton
ne
s C
O2
Where we started
How do we get there?
Where we want to be
Do
• Lagged boiler room flanges
• Insulated walls and roofs
• Draught-proofed buildings
• Upgraded the BMS
• Efficient boilers
• Small power control
• District heating
• Woodchip boilers
• Solar PV
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0
1000
2000
3000
4000
5000
Baseline prj Yr 1 prj Yr 2 prj Yr 3 prj Yr 4 prj Yr 5 prj Yr 6 prj Yr 7 prj Yr 8 prj Yr 9 prj Yr 10 prj Yr 11 Target
Ton
nes
CO
2
Check
05 November 2013
Review
0
1000
2000
3000
4000
5000
Baseline prj Yr 1 prj Yr 2 prj Yr 3 prj Yr 4 prj Yr 5 prj Yr 6 prj Yr 7 prj Yr 8 prj Yr 9 prj Yr 10 prj Yr 11 Target
Ton
nes
CO
2
Business as Usual
05 November 2013
Electricity
05 November 2013
0
500,000
1,000,000
1,500,000
2,000,000
2,500,000
3,000,000
3,500,000
4,000,000
4,500,000
2008/09 2009/10 2010/11 2011/12 2012/13
Newton Park
Bath Spa Uni
BSU 16%
NP 19%
£65k annual cost
reduction
Gas
05 November 2013
0
1,000,000
2,000,000
3,000,000
4,000,000
5,000,000
6,000,000
7,000,000
8,000,000
9,000,000
2008/09 2009/10 2010/11 2011/12 2012/13
Newton Park
Bath Spa Uni
BSU 37.6%
NP 28.4%
£100k annual cost reduction
Carbon
05 November 2013
0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
2008/09 2009/10 2010/11 2011/12 2012/13
Newton Park
Bath Spa Uni
BSU 21.5%
NP 19.6%
Thank you
05 November 2013