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Carbon Footprinting your site
1. the Environment Centre (tEC)
you . your business .your community
Carbon footprinting
your site
Dr. Derek Moss
Dr. Matthew Amesbury
2. the Environment Centre (tEC)
you . your business .your community
Introduction
• More details on calculating a carbon footprint
• Scopes 1, 2 and 3
• Setting boundaries
• Examples of carbon footprints and energy
audits
• TEA/COFFEE BREAK!!
• Thinking about your carbon footprints
3. the Environment Centre (tEC)
you . your business .your community
Carbon (CO2) footprinting – more details
• CO2 is the main thing we are measuring, but other GHGs (mostly carbon-
based) are also included, so it’s called ‘carbon’ footprinting
• There is currently no formal definition of ‘carbon footprint’
• Neither is there a formal method of measuring them, but there are several
protocols
• The currently most widely recognised one is by the World Resource Institute -
an independent environmental think tank of scientists, economists and policy
makers
http://www.ghgprotocol.org/files/ghg-protocol-revised.pdf
http://www.ghgprotocol.org/ - calculation tools and guidance notes (by sector)
4. the Environment Centre (tEC)
you . your business .your community
Carbon footprinting – more details
What is the point of them?!
• Baseline measurement for comparison with yourself in the future
(improvement)
• Measurement for comparison with others
• Publication
So, factors needing to be considered are:
1. Relevance
2. Completeness
3. Consistency
4. Transparency
5. Accuracy
www.walkerscarbonfootprint.co.uk
5. the Environment Centre (tEC)
you . your business .your community
Carbon footprinting – more details
What do you actually do?
• Decide on what you are going to include
• Make measurements of energy use
• Convert to units of CO2eq
• Report
What emissions to include? Operational boundaries (Scope 1, 2, and 3)
Who’s emissions to include? Organisational boundaries
6. the Environment Centre (tEC)
you . your business .your community
Scope 1 – Direct Emissions
“direct emissions occur from sources that are owned or
controlled by the company”
Examples:
• On-site combustion (industrial process or heating)
• Owned vehicles – work travel, transport
• Direct chemical emissions (e.g. methane)
General practical application:
• Gas/oil bills for heating
• Fleet petrol/diesel bills for transport
7. the Environment Centre (tEC)
you . your business .your community
Scope 2 – Indirect Emissions
“accounts for GHG emissions from the generation of
purchased electricity used by the company”
• When electricity is generated, emissions occur at the power
stations
• Locally generated electricity (micro-generation or renewable)
does not count
General practical application:
• Electricity bills
8. the Environment Centre (tEC)
you . your business .your community
Scope 3 – Other Indirect Emissions
(put simply, an optional accounting scope which accounts for everything else!)
“emissions as a consequence of the activities of a company,
but occur from sources not controlled by the company”
Examples:
• Staff commuting
• Embodied carbon of all products purchased
• Energy used in transport and operating products
• Waste generated, transported and processed
9. the Environment Centre (tEC)
you . your business .your community
Setting boundaries
• Who’s emissions do you include?
• For a small business in one office/unit, it’s fairly simple
• For a multi-national with interests in many
subsidiaries, it is less clear what to include
Clearly define the purpose of the measurement
www.walkerscarbonfootprint.co.uk
10. the Environment Centre (tEC)
you . your business .your community
CO2 footprinting examples - tEC
We are an environmental charity based in two offices, and with an
LPG-fuel car and a diesel-fuel van
This is a quick carbon footprint of the operations based in the
Southampton office, done as an example
11. the Environment Centre (tEC)
you . your business .your community
CO2 footprinting examples – tEC Scope 1
Direct emissions from the premises: gas boiler for heating
Calendar year total = 26,364 kWh of gas = 5.3 tCO2eq
Emissions from company-owned vehicle:
Petrol: 120 litres = 0.3 tCO2eq
LPG: 620 litres = 0.9 tCO2eq
Transport Total = 1.2 tCO2eq
Scope 1 Total = 6.5 tCO2eq
12. the Environment Centre (tEC)
you . your business .your community
CO2 footprinting examples – tEC Scope 2
Electricity used on the premises:
Calendar year total = 44,723 kWh of electricity = 22.4 tCO2eq
Scope 2 Total = 22.4 tCO2eq
A quick Scope 1 and 2 footprint of the Southampton part of our
operations is therefore:
28.8 tCO2eq
13. the Environment Centre (tEC)
you . your business .your community
CO2 footprinting examples –
conference
A one-off, day long conference. Footprint calculated for the purpose of offsetting
Scope 1 – Direct Emissions
Gas used for heating the venue on the day, and in the preparation of food:
171 kg
Staff travel on conference business:
758 kg
Scope 2 – Indirect Emissions
Electricity used for lighting the venue on the day, and in powering equipment:
196 kg
14. the Environment Centre (tEC)
you . your business .your community
Eco-Island conference – Scope 3
conference
Food miles – moving the food to the venue: 48 kg
Manufacture of products specifically for the conference: 229 kg
Delegate travel to the conference
– the conference is definitely responsible for this
– delegates filled in a questionnaire about their travel,
results were analysed and combined
Delegate travel emissions: 1568 kg
15. the Environment Centre (tEC)
you . your business .your community
Eco-Island conference
Scope 1: 929 kg
conference
Scope 2: 196 kg
Electrcity
Scope 3: 1845 kg Gas
Delegate Travel
Staff Travel/Deliveries
Products
Food
Total: 2970 kg
= 2.97 tCO2eq
… which was offset by the distribution of low-energy light bulbs and insulation
16. the Environment Centre (tEC)
you . your business .your community
Energy Audits – Hospitality Industry
A small hotel on the Isle of Wight – simple Scope 1 and 2 footprint
Gas for cooking
Oil for heating
Electricity for lighting Gas
and power Electricity
Oil
Total footprint:
35.2 tCO2eq
17. the Environment Centre (tEC)
you . your business .your community
Energy Audits – Manufacturing Industry
A small manufacturing business doing vacuum forming
– a simple Scope 1 and 2 footprint
Gas for heating
Electricity for lighting, office
equipment and processes
Electricity
Gas
Total footprint:
202 tCO2eq
TEA/COFFEE BREAK!
18. the Environment Centre (tEC)
you . your business .your community
Group discussion
• Split up into groups by sector (see lists on tables)
• Discuss the following issues:
1) Which of your activities contributes most to
your carbon footprint?
2) Which areas of footprint do you think are
easiest to reduce?
• We will briefly discuss results with the larger group
19. the Environment Centre (tEC)
you . your business .your community
Reducing Your Footprint - Heating
Potential Saving
Insulation: how well insulated are your premises? 40%
Heating: how efficient is your heating system? 20%
How draughty are your premises? 15%
How well behaved are your staff? - windows 10%
Is your thermostat set above 19°C? 8% per °C
20. the Environment Centre (tEC)
you . your business .your community
Reducing Your Footprint - Offices
Potential Saving
Are computer monitors left on? 70 kg per year
The computers themselves? 100 kg per year
Are your lights left on? 50 kg per light
Are your drinks machines left on? 600 kg per year
Are your printers/copiers left on? Lots
Could your staff work from home via VPN? Lots of Scope 3
Could your staff car share? Lots of Scope 3
How much water do you put in the kettle? Lots
Monitor your gas and electricity meters
– you can’t manage what you don’t measure!
21. the Environment Centre (tEC)
you . your business .your community
Exercise
• Individually, write out the 5 things that you think
would reduce your carbon footprint for the least
amount of money
• Ask us …..
• You’ll have a carbon action plan!
22. the Environment Centre (tEC)
you . your business .your community
Any Questions?
• We are considering offering dedicated carbon
footprinting training at tEC.
• If you may be interested, please talk to one of us.