CRed Towards Carbon Neutrality: HSBC Environmental Technology Partnership Can UEA become Carbon Neutral? Keith Tovey (Н.К.Тови 杜杜杜 ) M.A., PhD, CEng, MICE, CEnv Energy Science Director: HSBC Director of Low Carbon Innovation School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, UK Факультет экологических исследований, Университета CRed
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Towards Carbon Neutrality: HSBC Environmental Technology Partnership
Towards Carbon Neutrality: HSBC Environmental Technology Partnership. Can UEA become Carbon Neutral?. Keith Tovey ( Н.К.Тови 杜伟贤 ) M.A., PhD, CEng, MICE, CEnv Energy Science Director: HSBC Director of Low Carbon Innovation - PowerPoint PPT Presentation
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CRed
Towards Carbon Neutrality:
HSBC Environmental Technology Partnership
Can UEA become Carbon Neutral?
Keith Tovey (Н.К.Тови 杜伟贤 ) M.A., PhD, CEng, MICE, CEnvEnergy Science Director: HSBC Director of Low Carbon Innovation School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, UK
Факультет экологических исследований, Университета Восточной Англии, Норидж NR4 7TJ, Великобритания.
汇丰银行低碳创新主管 , 东英吉利大学环境科学院,诺威治 , NR4 7TJ, 英国
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Can UEA become Carbon Neutral?
• How do we define carbon neutrality?
• Can we be sure that ultimately we achieve such an aim?
• What should we consider?
• With the School of Environmental Sciences (a 5** department), can we be sure that our analysis avoids criticism?
• What is extent of carbon footprint at present?
• What our boundaries?
• How should we tackle carbon neutrality?
• Do we need independent verification?
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• Gas consumption– Central Heating Boilers
– CHP generation
– Cooking / laboratories
– Other sites –Village, NAM, remotely heated buildings (EFRY)
• Heating Oil consumption – (backup for boilers)• Electricity Consumption• Transport
What is the extent of Carbon footprint at UEA at present?Where is Energy used?
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Gas, Oil and Electricity Consumption on Campus• How do we track how we are getting on?
• What about expansion? - should we track our performance on a student
unit basis?. - [would allow comparison with other similar institutions].
What is the extent of Carbon footprint at UEA at present?What Boundaries should we use?
What should be included? • teaching and communal areas• what about residences ??
Transport? • activities associated with UEA• how are these defined? What if there is no documentary evidence of travel - e.g. activities paid for by other bodies: Government: British Council etc.• transport to and from home of workforce??
Procurement • equipment purchased• food and drink consumed on premises
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How Could / Should Carbon Neutrality be achieved?
Conversion efficiency improvements
Renewable generation: Solar, Wind, Biomass
Travel plan: Park and Ride, biodiesel
Conservation: technical improvements –
Conservation: by awareness raising
Green Electricity
Direct Action
Indirect Action
Other Offsets
Gold Standard Offsets
Indirect Activities - Can these count?
Planting Trees
Conservation: management improvements –
What if we install renewable electricity generation and sell the ROCs?
We could not then claim this action as carbon neutrality? – double counting
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Results of the “Big Switch-
Off”
With a concerted effort savings of 25% or more are possibleHow can these be translated into long term savings?
Target Day
Conservation: by awareness raising
BUT
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• Spot lights ON in ENV FOYER 24th October 2005
• Next to window• Provide no extra light• Reception Staff are aware• Cannot be switched off except from
within Office• Cause emission of 400 kg of CO2 a year.
Conservation: by awareness raising
Switch has now been taped to prevent it being turned on
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The Elizabeth Fry Building 1994
Conservation: technical improvements –
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Cost 6% more but has heating requirement ~25% of average building at time.
Building Regulations have been updated: 1994, 2002, 2006, but building outperforms all of these.Runs on a single domestic sized central heating boiler.
Would have scored 13 out of 10 on the Carbon Index Scale.
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Quadruple Glazing
Thick Insulation
Air circulates through whole fabric of building
Principle of Operation
Quadruple Glazing
Thick Insulation
Air circulates through whole fabric of building
Mean Surface Temperature close to Air Temperature
Mean Surface Temperature close to Air Temperature
Principle of Operation
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Heater
Diffuser
Supply duct to
hollow core slabs
Two channel regenerative heat exchanger Floor Slabs
Incoming
Air
Exhaust Air
Filter
Exhaust Airfrom rooms
Principle of TermoDeck Operation
• Air is circulated through whole fabric of building • Uses regenerative Heat Exchangers ~ 87% efficient
•Uses regenerative Heat Exchangers ~ 87% efficient•Air is circulated through whole fabric of building
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Conservation: management improvements –
Careful Monitoring and Analysis can reduce energy consumption.
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50
100
150
200
250
Elizabeth Fry Low Average
kWh/
m2/
yr
gas
electricity
thermal comfort +28%User Satisfaction
noise +26%
lighting +25%
air quality +36%
A Low Energy Building is also a better place to work in
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Conservation: technical improvements –
Zuckerman Institute for Connective Environmental Research
Carbon Trust: Low Energy Building of the Year 2005
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Conservation: management improvements –
On rewiring - control for lighting in yellow corridor was solely provided by red switch.Reluctantly contractors agreed to fit blue switch as an afterthought
The Green Corridor
The Yellow Corridor
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Lack of co-ordination can make things go wrong
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Renewable generation: Solar, Wind, Biomass
34 kW Photo-Voltaic array – exports electricity on summer Weekends
How Green is Green Electricity?Data for Ecotricity Wind Farms
Data for July 2004
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• What is needed for Transparency– The total amount of renewable electricity generated by their plant.
– The total number of ROCs they held
– The total number of customers on their “Green Tariffs”
– The total amount of electricity supplied through their “Green Tariffs”
– The total number of consumers
– The total electricity sales to all consumers
– A clear declaration of what their respective tariffs are for non green and green tariffs
– An indication of how these tariffs are derived
• The actual tariff (responsibility of the supplier)
• The distribution charges (responsibility of DNO and common to all suppliers)
• The meter reading chargers (repsonsibility of meter reading company)
How Green is Green Electricity?
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• UEA needs to clearly define what it means by Carbon Neutrality.• Boundaries of our consideration need to be addressed.• Significant steps have been taken already.• Further renewable energy projects are planned.BUT we need to • Make awareness more effective.• Further enhance Management issues.• Tackle transport both institutionally and by the individual.• Consider methodology for transport analysis• Think carefully about Green Electricity Tariffs
Conclusions
Lao Tzu (604-531 BC) Chinese Artist and Taoist philosopher
"If you do not change direction, you may end up where you are heading."