in particular the UK NNB and offshore wind farm projects 3 PRESS RELEASE 28 July 2017 first half of 2017, compared to 5 569 million in the first half of 2016, taking into account the sale of 49 9 % of CTE15. Operating cash flow amounted to 4 156 million in the first half of 2017 compared to 7 959 million in the first half of 2016, a decrease of 3 803 million.