The majority Popular Party of Prime Minister Mariano Rajoy is trying to hike the levy to 7% from the 6% that had originally been envisaged in the austerity-racked nation.

The reforms before the Senate – Spain’s upper house – also include a levy on nuclear, large-scale hydropower and solar-thermal.

The Spanish wind energy association, AEE, says at the higher rate the new tax would hit the sector by some €300m ($392m) annually.

But