Isolux v. Spain

In October 2013, Isolux filed a claim against Spain alleging a violation of the fair and equal treatment provisions of the Energy treaty Charter by the Government of Spain. The claim arose as a result of measures, implemented in 2010, which introduced a number of changes to a previous incentive regime for renewable energy established in 2007, and included a 7 per cent tax on power generators’ revenues and a reduction in subsidies for renewable energy producers. In 2019, the tribunal found that because Isolux suffered no severe or radical loss, Spain did not expropriate its investment.