Acciona made a net €68m ($91m) in the January to June period, up from €48m at the same stage in 2013, despite a 2.5% decline in turnover to €3bn.

Acciona posted a 65% rise in earnings before interest and tax (Ebit), which reached €89m.

The Spanish group said it first half earnings were boosted by favourable effects from the change to the depreciation period for its wind farms to 25 years from 20, which had a €61m positive impact.

Acciona also got a one-off €39m gain from the sale of assets, including its German wind portfolio.

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