Carbon Footprinting your site
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Transcript of Carbon Footprinting your site
the Environment Centre (tEC)you . your business .your community
Dr. Derek Moss
Dr. Matthew Amesbury
Carbon footprinting
your site
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
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)
www.walkerscarbonfootprint.co.uk
the Environment Centre (tEC)you . your business .your community
Carbon footprinting – more details
1. Relevance
2. Completeness
3. Consistency
4. Transparency
5. Accuracy
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:
the Environment Centre (tEC)you . your business .your community
Carbon footprinting – more details
What emissions to include? � Operational boundaries (Scope 1, 2, and 3)
Who’s emissions to include? � Organisational boundaries
What do you actually do?
• Decide on what you are going to include
• Make measurements of energy use
• Convert to units of CO2eq
• Report
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
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
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!)
Examples:
• Staff commuting
• Embodied carbon of all products purchased
• Energy used in transport and operating products
• Waste generated, transported and processed
“emissions as a consequence of the activities of a company,
but occur from sources not controlled by the company”
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
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
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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
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
the Environment Centre (tEC)you . your business .your community
CO2 footprinting examples –
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
Scope 2 – Indirect Emissions
Electricity used for lighting the venue on the day, and in powering equipment:
196 kg
Staff travel on conference business:
758 kg
conference
the Environment Centre (tEC)you . your business .your community
Eco-Island conference – Scope 3
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
conference
the Environment Centre (tEC)you . your business .your community
Eco-Island conference
Scope 1: 929 kg
Scope 2: 196 kg
Scope 3: 1845 kg
… which was offset by the distribution of low-energy light bulbs and insulation
Total: 2970 kg
= 2.97 tCO2eq
Electrcity
Gas
Delegate Travel
Staff Travel/Deliveries
Products
Food
conference
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
Electricity
Oil
Gas for cooking
Oil for heating
Electricity for lighting
and power
Total footprint:
35.2 tCO2eq
the Environment Centre (tEC)you . your business .your community
Energy Audits – Manufacturing Industry
Electricity
Gas
A small manufacturing business doing vacuum forming
– a simple Scope 1 and 2 footprint
Gas for heating
Electricity for lighting, office
equipment and processes
Total footprint:
202 tCO2eq
TEA/COFFEE BREAK!
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
the Environment Centre (tEC)you . your business .your community
Reducing Your Footprint - Heating
8% per °CIs your thermostat set above 19°C?
10%How well behaved are your staff? - windows
15%How draughty are your premises?
20%Heating: how efficient is your heating system?
40%Insulation: how well insulated are your premises?
Potential Saving
the Environment Centre (tEC)you . your business .your community
Reducing Your Footprint - Offices
Monitor your gas and electricity meters– you can’t manage what you don’t measure!
LotsHow much water do you put in the kettle?
Lots of Scope 3Could your staff car share?
Lots of Scope 3Could your staff work from home via VPN?
LotsAre your printers/copiers left on?
600 kg per yearAre your drinks machines left on?
50 kg per lightAre your lights left on?
100 kg per yearThe computers themselves?
70 kg per yearAre computer monitors left on?
Potential Saving
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!
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.