Watch: Protesters explain why they're demonstrating at Templeboroughpublished at 14:00 British Summer Time 7 April 2016
Liz Roberts
BBC Radio Sheffield, political reporter
We've been talking about this protest going on at the site of a new biomass plant in South Yorkshire.
Its been organised by trade unions who say the plant at Templeborough is being built using cheap foreign labour.
The GMB say Interserve and Babcock, Wilcox and Volund aren't paying the agreed industry rate for all workers on the site.
Interserve says it's disappointed with this second protest at the plant and it complies with UK legislation on pay and generally uses UK contractors and UK supply chain partners.
The company plan to continue to work with the unions to find a solution.