London Energy and Greenhouse Gas Inventory
The London Energy and Greenhouse Gas Inventory (LEGGI) 2008 is a database of geographically referenced datasets of energy consumption within the Greater London area and estimates of the quantity of resulting greenhouse gases (GHG) – carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulphur hexafluoride (SF6) – emitted into the air. The LEGGI shows energy use and GHG emissions allocated on an “end-user” basis – the general principle here is that energy use and GHG emissions are distributed according to the point of energy consumption (or point of emission if not energy related). GHG emissions from the production of goods are assigned to where the production takes place (except electricity production). GHG emissions from the production of goods that are exported are included, and emissions from the production of goods that are imported are excluded.
The base year for the LEGGI 2008 is the 2008 calendar year. Estimates of energy consumption and the related GHG emissions are projected to 2011 and 2015 and are expressed in kilowatt-hours per year (kWh/yr) and metric tonnes of carbon dioxide equivalent (CO2eq) per year, respectively. The geographical area (1,604 km2) covered by the LEGGI includes the 32 London boroughs and the City of London. The energy use and GHG emissions in the LEGGI are grouped by fuel/energy use sources (i.e., Coal, Electricity, Gas, Oil, Aviation, Rail, Road Transport, Shipping and Wastes), sectors (i.e., Domestic, Transport and Industrial & Commercial) and geographical locations.
The LEGGI also provides information on the activities that use energy and cause GHG emissions, as well as background on the mission estimated methods. The LEGGI could be used to assess the spatial distributions and relative significance of the various energy/fuel use and GHG emission sources and develop energy and climate change strategies and policies and assess progress.
The full LEGGI is available to download from the London Datastore: http://data.london.gov.uk/search/node/LEGGI
