Diesel farms , associated with noise pollution and toxic emissions , are among the providers bidding for contracts to supply back - up electricity to the UK ’s National Grid in Tuesday ’s annual capacity market auction . is that any set up before November 2015 are eligible for a tax break through the Enterprise Investment Scheme (EIS). The farms , which provide support during peak demand , can cost £ 5 m ( $ 6.34 m ) per year and the auction process has allowed suppliers to target companies for the primary purpose of obtaining National Grid payments . Non - profit analysts now estimate the sector , which receives substantial tax breaks , could be worth £ 500 ##m within years . Regulator Ofgem and the Department of Business , Energy and Industrial Strategy have both proposed reducing payments to the sector .
Diesel farms , associated with noise pollution and toxic emissions , are among the providers bidding for contracts to supply back - up electricity to the UK ’s National Grid in Tuesday ’s annual capacity market auction . The farms , which provide support during peak demand , can cost £ 5 m ( $ 6.34 m ) per year and the auction process has allowed suppliers to target companies for the primary purpose of obtaining National Grid payments . Non - profit analysts now estimate the sector , which receives substantial tax breaks , could be worth £ 500 ##m within years . Regulator Ofgem and the Department of Business , Energy and Industrial Strategy have both proposed reducing payments to the sector .