These changes to the renewable energy regime caused a direct impact of €257m on group results, it said, and forced goodwill write-offs and impairment charges on renewable energy assets totalling €1.68bn.
To a lesser extent, group results were also affected by the depreciation of some real estate assets and other businesses, and the provisioning against possible losses in a small number of contracts in the infrastructure division. On the positive side, group results also reflect the positive impact of capital gains resulting from the sale of wind assets and a hospital concession in 2013.
Earnings before interest, tax, depreciation and amortisation (EBITDA) totalled €1.23bn, 14.1% lower than in 2012, mainly as a result of the impact of regulatory changes in Spain on Acciona's Energy division.
Acciona Infrastructure revenues fell 17.8% in 2013 to €2.73bn, as a result of a fall in construction activity in Spain and abroad. EBITDA fell 49.6% to €82m. The construction backlog at the end of 2013 totalled €5.72bn, down 15.4% on the year before. The international construction backlog represents 54% of the total.
Net investment across Acciona's different businesses totalled €381m in 2013, a 55.4% drop compared with the previous year. Of the total, €205m were invested in the organic growth of the Energy division, and €198m went to the Infrastructure division, mainly in concessions.
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