Modest data corrections have taken place for consumption and carbon metrics against gas use, train travel and plane travel compared to previously submitted ARA data. This is due to errors being uncovered in the previous data sets.
New metrics are being added to the data set over time with recent inclusions being diesel use in generators and fugitive emissions from air conditioning systems.
External data storage has been a major area of data development during 19/20 with information added for outsourced data services in our baseline year and more recent impacts from co-location and cloud.
Co-location data has had major updates and is still in the process of updating due to new information on energy usage and PUE. Cloud information is starting to get more transparent and that data set is being built.
The 13/14 outsourced data services carbon estimation has been a crucial element, with a study occurring to cross check estimations of rack level energy use – the outcome was circa 2.7kW draw per rack in 13/14 compared to a circa 5kW draw in 19/20.
By 20/21 data should be available for broader procurement activities and at that point the data set will be nearing completion.