Bulgaria's parliament has approved conclusively a highly controversial new tax on revenues of renewable energy producers amid a wave of protests against it. 

The proposal was supported Thursday morning by 116 MPs, 38 voted against and 28 abstained. 

The proposal to introduce a new 20% tax on the revenues of photovoltaic plants and wind farms through changes to the Renewable Energy Sources Act was submitted by Volen Siderov, leader of nationalist party Ataka, during the second-reading vote on Budget 2014 by the parliamentary committee on budget and finance.