Business Decarbonisation Support
To understand the emissions solely from businesses in Havering, the nationwide intensity values were then multiplied by the total number of employees in Havering in each (2-digit SIC code) sector. This provided estimates for the total emissions from each sector respectively. A similar approach was taken with the ONS data; however, the number of employees in each sector was estimated based on business counts within each employment size bands. This assumption reduces the accuracy of the emissions output and, therefore, the results from the EMSI data were used to show the sector emissions presented in 3.1.2.
4.2.3 Methodology Limitations Without publicly available data relating to Havering’s emissions from businesses disaggregated by sector, our analysis relied on using a top-down estimation approach. Data from EMSI was also rounded, with sectors with <10 jobs assumed as having 0 employees. This leads to higher uncertainty regarding employee counts at a national, and local authority level. The emissions estimates in this project cover the Kyoto gases: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFC), perfluorocarbons (PFC), sulphur hexafluoride (SF6) and nitrogen trifluoride (NF3) and are expressed as kt Carbon Dioxide equivalent (ktCO2e). The emissions are ‘territorial’ meaning they cover emissions released in the UK, excluding emissions from UK businesses and residents that occur abroad, including shipping and aviation. It also excluded any emissions embedded within the supply chain of goods and services imported into the UK. These emissions can be reported either on a source or end-user basis. The data used in this project is reported on a source basis, meaning the emissions are attributed to the sector that emits them directly (e.g., emissions from a power station are allocated to the power station as opposed to the users of the electricity it generates). This is in comparison to some of the existing territorial CO2 data published by BEIS which disaggregates emissions at a local authority level10 which is reported on an end-user basis and only covers carbon dioxide emissions.
UK local authority and regional carbon dioxide emissions national statistics: 2005 to 2019 https://data.gov.uk/dataset/723c243d-2f1a-4d27-8b61-cdb93e5b10ff/uk-local-authority-and-regional-carbondioxide-emissions-national-statistics-2005-to-2019 10
51
