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CHAPTER 4 Responsible management
1 The data for the month of December were estimated as they were unavailable at the reporting date. 2 The data for 2018 and 2017 vary with respect to those reported in the 2018 Annual Report and Corporate Responsibility Report after they were verified. 3 For the "Business travel" and the "Emissions from transportation of employees to and from work" categories emissions were estimated to be the same as those for 2018. 4 Data for 2017 not included in the Certification of that year was calculated with the same methodology certified in 2018.
Scope 3 emissions by category (Thousands of tonnes of CO2 eq)
Category 20191 20182 20172
Purchased goods and services 5,131 4,820 4,361
Activities relating to fuel and energy 446 444 469
Transport and distribution of raw materials 962 956 756
Waste generated in operations 4 5 3
Business travel3 3 3 4
Emissions from transportation of employees to and from work3 5 5 5
Lease of work place 0 1 1
Transport and downstream distribution of the production process4 534 656 7404
Use of products sold 64,185 73,544 71,026
Franchises 42 39 34
Investments 42 46 44
Total 71,354 80,519 77,443
The "Use of energy products" category, which accounts for more than 90% of total scope 3 emissions, is lower than in previous years, although at the date
of preparation of this report, the certifi- cation of the data corresponding to this classification had not been obtained.
ENERGY AND ENERGY EFFICIENCY
Consumption of energy by business unit (TJ) 2019 2018 2017
Exploration and Production1 4,018 3,794 4,271
Refining 42,825 43,813 43,674
Chemicals2 14,465 14,348 14,418
Gas & Power 33,401 22,462 26,281
Total3 94,709 84,418 88,644
1 The scope includes only the assets subject to operational control, with working interests reported fully as per IOGP Reporting criteria, based on the scope, and 2017 and 2018 consumption were recalculated. The methodology for calculating consumption in Exploration & Production was changed in 2019 to that developed by IOGP. 2017 and 2018 were not recalculated. 2 The scope includes the Spanish and international chemical plants, except the Sinarmas plants. The consumption for 2017 and 2018 were recalculated in this connection. 3 Data for Disribution, Cepsa Comercial Petróleo, Petrocan, SIS, Aviation and CMD are not reported.