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Carbon Footprint

Our carbon footprint helps us to identify initiatives to reduce energy and water use and waste.

Climate change is widely recognised as one of the biggest global challenges we face. It presents some challenging risks and uncertainties for business and society, but it also provides us opportunities to be innovative in the ways we try to reduce our impact.

Our stakeholders and customers look to us to ensure that we minimise the impact of our operations on the climate, and that we design homes that will be able to adapt to future changes in climate. We review the risks and opportunities that climate change may bring to our business and wider society annually. For more information on these, please see our Climate Change Risks & Opportunities Assessment.

Office Commuting Business Travel Site
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Office

Overall, our carbon emissions associated with our divisional offices increased by 17% compared with 2017. The reason for this was due to the refrigerant gas losses in our Head Office. Both our electricity and gas consumption was lower than 2017 (by 17% and 2% respectively). This is largely due to purchasing renewable electricity and biogas for our Bristol and Head Offices.

Level of Influence and Control
Office Electricity
 
126.28 tCO2e
Medium
Office Gas
 
126.30 tCO2e
Medium
Office Water
 
1.48 tCO2e
Medium
Office Waste1
 
1.65 tCO2e
Medium
Refrigerant gas loss
 
80.08 tCO2e
Medium
Subtotal: 335.80 tCO2e

1 Office waste includes emissions associated with waste to energy, landfilled, recycled and food waste.

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Site

Carbon emissions associated with our site activities have increased by 26% compared against 2017. During the course of the year we began working with a utilities management company, which allowed us to increase the scope of our consumption data to include readings for feeder pillars, pumping stations and other metered and unmetered supplies. This is a key reason for our increased site footprint in 2018. We have also observed an increase in site fuel use from both diesel and LPG. One reason for this is likely to be the cold spell during February and March, meaning more energy was required to keep site cabins warm. During 2019, we will be conducting energy efficiency audits across a selection of our sites as part of our compliance with the Energy Savings Opportunity Scheme (ESOS).

Level of Influence and Control
Site Fuel
 
4,976.68 tCO2e
High
Site Electricity
 
2,870.52 tCO2e
High
Site Gas
 
2,033.24 tCO2e
High
Site Water
 
38.99 tCO2e
High
Site Waste (Landfilled)
 
1.20 tCO2e
High
Subtotal: 9,920.63 tCO2e
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Business Travel

Carbon emissions associated with business travel have increased by 9% compared with 2017. There were similar increases to emissions from company-owned and employee-owned vehicles (8% and 9% respectively), which are the main contributors towards our business travel footprint. However, when we normalise these figures by our average headcount, there was actually a reduction in business travel emissions per person of 2%.

Level of Influence and Control
Company-Owned Vehicles
 
1,491.58 tCO2e
Medium
Employee-owned Vehicles
 
805.18 tCO2e
Low
Public Transportation
 
41.36 tCO2e
Low
Other (Flights, Taxis)
 
25.78 tCO2e
Low
Subtotal: 2,363.90 tCO2e
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Commuting

In 2018, our carbon emissions associated with commuting were at a similar level to what they were in 2017 (901 tCO2e). When normalised by our average headcount, commuting emissions per person have fallen by 11%. Our annual commuting survey highlighted the fact that the vast majority of our commuting mileage is from private vehicles (92%), rather than public transport.

Level of Influence and Control
Private Transportation
 
893.56 tCO2e
Low
Public Transportation
 
15.41 tCO2e
Low
Other (Taxi)
 
0.89 tCO2e
Low
Subtotal: 909.86 tCO2e

Normalised Carbon Emissions

13.32 Tonnes CO2e/person (2017: 11.84)

4.21 Tonnes CO2e/1,000sqft (2017: 3.38)

11.90 Tonnes CO2e/£m turnover (2017: 10.27)

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