Collect Data and Conduct Preliminary Analysis
In 2013, Skanska AB began monitoring and benchmarking the energy consumption of 45 Skanska-occupied offices to inspire greater action within the business units. A reporting and benchmarking capability was developed in the company’s sustainability reporting platform and business units were surveyed on their metering strategies for all energy sources in preparation for the baseline year 2014.
The reporting platform gathers all consumption and production data. KPIs include Net Consumption in kWh, kWh/m2 (net floor space occupied) and kWh/FTE (Full Time Equivalents or effectively per person) and greenhouse gas emissions in tCO2e, tCO2e/m2 and tCO2e/FTE. The reporting frequency for most of the offices is monthly.
Feedback on progress was regularly provided to Skanska´s Green Leadership team. 2015 is a year of data reporting improvement (which in some cases proved more difficult than expected – e.g. obtaining information form landlords) with benchmarking for the identification of improvement opportunities.
In the case of Skanska UK, energy data was collected from utility suppliers, landlords, ARM meters where installed or from the building’s BMS. This process took time but had an added benefit of leading to wider improvements in energy procurement throughout the properties Skanska occupies. The BU aimed to collect data as granular as possible. Monthly data, which provides a good overview of seasonal drivers, was the minimum granularity and half hour data, which gives a good oversight of daily consumption, was considered ideal. If half hour data was not available for a targeted site ARM metering was installed.
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