Global Reporting Initiative+Fuel consumption from non-renewable sources, GRI 302-1-a (formerly G4-EN3-a)+Siemens Gamesa Renewable Energy, S.A.+2017+Discussion
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Calculation: 477570GJ (Total) - 168996GJ (Renewable)
Note: 6m period only
Data only for a six month period due to merger in 2017.