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found on page 99 original answer was 2.9 Gwh conversion may be wrong
p. 99 of Sustainability Report 2017
Sum of renewable and non-renewable energy input: 29 TJ + 57.3 PJ + 7.1 PJ + 3.2 PJ + 2.9 PJ
= 0.029 PJ + 57.3 PJ + 7.1 PJ + 3.2 PJ + 2.9 PJ
= 70.529 PJ
= 70,529,000 GJ