The management approach and its components GRI 103 103–3 Evaluation of the management approach 16–20 GRI 302 302–1 Energy consumption within the organization 18–19, 36–37 Total gigajoules (“GJ”) and Megawatt hours (“MWh”) of direct energy purchased (natural gas, diesel, gasoline and liquid propane) and total GJ and MWh of indirect energy purchased (electricity, steam, hot water and chilled water) for year ended December 31, 2020, is reported as either (1) third-party invoices recorded in environmental/ utilities management systems or (2) based upon the estimation methodology.