1. Boyton Community Carbon Audit
Coffee and carbon footprint morning 19th July 2008 Presented by Kate Sims

2. What is a Community Carbon Footprint?
a way of assessing household emissions of carbon dioxide (CO2) –looks at energy used in our daily living
heating and lighting of houses, using energy intensive appliances
Also looks at energy lost through the fabric of the house as waste heat
Looks at householders’ travel
Links to climate change and what householders can do to make a difference

3. Why a Community Carbon Footprint?
Knowing your community carbon footprints helps:
by giving a baseline from which to identify the actions most needed to achieve this aim
to involve households individually so they could see for themselves where they could take action.
obtain a grant for a community scheme

4. Boyton village carbon footprint
83 occupied homes
35 returned survey forms
17 of which have currently been put on the Boyton Village Cut Your Carbon community
42% of households returned survey forms.
20% of households are represented on the Cut Your Carbon website.

5. Key findings
The group from Boyton represented on the CYC website is estimated to produce tonnes of CO2 per annum from its homes, personal transport and flying
The majority of homes surveyed were detached dwellings
The households surveyed are predominantly heated by oil
Most surveyed households own a car
There is a high level of flying, particularly attributable to a low number of households

6. Household carbon dioxide emissions
The estimated Suffolk Coastal carbon footprint is tonnes of CO2 per person per year, excluding flights
Each member in the group in Boyton on the CYC website is estimated to produce 24.9 tonnes of CO2 per year from day to day living - emissions from heating, hot water, appliances, lighting and transport including flights
Does not include emissions associated with food, water, goods and services – these could add 4.2 tonnes per person

7. Boyton – carbon dioxide emissions

8. Carbon footprint breakdown
Home
Heating
Renewables
Insulation
Electricity
Travel
Public transport
Car
Air
Ideas for an action plans
Short, medium and long term
What other communities have done
Support
                                     

9. Household heating
The village has a high proportion of oil powered heating systems.
The carbon emitted during transportation of the oil into the village is not calculated

10. Type of heating system
Most respondents had boilers less than 5 years old
Old boilers are less efficient than modern ones

11. Heating controls
Having controls and correctly setting those controls can significantly reduce wasted energy through avoiding over heating or heating at inappropriate times.
The ability to control the heating is important. Room thermostats and thermostatic radiator valves are important.
                              
Source: Energy Saving Trust

12. Renewables Biomass Heat pumps Small scale wind
wood pellets, wood chips or wood logs
4% of survey respondents had biomass heaters
Heat pumps
transfer heat from the ground, air or water into a building to provide heating
Small scale wind
Wind turbines use the wind's lift forces to rotate aerodynamic blades that turn a rotor which creates electricity.

13. Renewables Solar PV Solar water heating
Solar PV (photovoltaic) uses energy from the sun to create electricity to run appliances and lighting.
Solar water heating
Solar water heating systems use heat from the sun to work alongside your conventional water heater.
9% of survey respondents had solar water heating systems

14. Insulation

15. Wall insulation Wall insulation
60% of the audited homes did not have cavity wall insulation.
Up to 35% of the heat lost in an average home is through the walls.
If have a cavity in the wall, insulation can cost £100 to £300 depending on the property and should pay for itself over 2 heating seasons

16. Loft insulation Wall insulation
91% of survey respondents had loft insulation
The amount of loft insulation is important.
270mm of insulation is required to meet current UK building regulations.
Loft insulation is one of the most cost effective energy efficiency measures.

17. Double glazing Wall insulation
29% of respondents did not have double glazing
Since only 10% of heat escapes through the windows and the pay back period up to 20 years, you would not replace windows to improve energy efficiency; you would replace them because they are beyond economic repair

18. Draught proofing
Draught proofing is one of the most low cost yet effective ways of reducing heat loss in all types of building.
It simply fills gaps and decreases the amount of cold air entering your home
Source: Draught Proofing Advisory Association Limited

19. Green electricity
Of those who responded 9% get their electricity from a ‘Green Energy’ supplier
Green energy means energy produced from renewable resources

20. Lighting Wall insulation
Of those responded only 26% had fewer than three low energy light bulbs.
Only 26% of all light bulbs are low energy
Switching from a conventional light bulb to a low energy light bulb will save around £7 and 29 kilos of carbon dioxide each year.

21. Travel
The majority of respondents would walk or cycle distances of less than 1 mile

22. Car travel Wall insulation
Less than 1.4 litres
More than 2 litres
1.4 litres-2 litres
The survey shows that 63% of households have more than one car. Aside from 1 hybrid the remaining vehicles were fairly evenly split between diesel 44% and petrol 56% .
Petrol has a higher carbon content than diesel per kilometre driven.

23. Car Travel Only 23% of respondents shared their car
Sharing lifts reduces
CO2 and saves money
16000-
13000 –15999
1000 –3999
4000 –6999
10000 –12999
7000 –9999

24. Aviation Flights account for a large proportion of the carbon emitted
In total 39 domestic flights, short haul flights and long haul flights were taken.
CO2 emissions for a short haul flight are calculated at 0.13 kgCO2/pass.km, a return flight to Malaga Spain results in 442 kg of emissions
CO2 emissions for a long haul flight are calculated at 0.11 kgCO2/pass.km, a return flight to New York results in 1232kg of emissions

25. Possible actions – Short term
Community energy efficiency - including bulk installation of insulation, draught proofing and raising awareness
Community purchase of oil to reduce transportation related emissions and reduce cost
Local car sharing
Awareness raising of behavioural measures to reduce impact of driving (e.g. planning trips, driving techniques etc) and flying
Encourage shift towards walking or cycling for short distances

26. Possible actions – short/medium term
Fuel switching from oil/coal to biofuels/wood
Installation of solar hot water (e.g. a community self build scheme such as Broadsol)
Local car pool for residents

27. Possible actions – short/long term
Supply of electricity from renewables (either tariff from provider or community based generation scheme e.g. wind/hydro/pv)
Encouraging a fuel shift to bio-fuel alternatives (biodiesel or bioethanol)

28. Community: Wenhaston Set up an oil bulk buying scheme
Organised solar bulk buying: 8 households have indicated they will be going ahead with solar installations with 4 being completed by the end of the quarter
Won £70,000 from the Cut your Carbon competition to install electricity generating solar panels and a biomass system using wood at their village hall
Held an insulation day and an energy day
They have lots more planned - the essential ingredient is a group of enthusiastic volunteers

29. Support: Suffolk Coastal District Council
£100-£300 towards the energy pot if after today between more people sign onto Cut Your Carbon and input their data
A light bulb library with energy meters for loan
Bulk buy negotiations for solar and insulation
General insulation and renewable advice
Attendance at an insulation event to help give advice
1 day’s support based on action plan

30. Support
SEAL Hotline The main priority for SEAL is to promote domestic energy efficiency and encourage a reduction in energy use within the home
Cred Suffolk – Kate Sims
Cut Your Carbon - Robert Horn To provide advice specifically about the Cut Your Carbon Fund
EST - Café - online Community Action for Energy (CAfE) is a programme from the Energy Saving Trust that is designed to promote and facilitate local community-based energy projects

31. CRed Suffolk Community Advisor
Further information:
Kate Sims
CRed Suffolk Community Advisor