By Ali Lyon The government’s changes to the windfall tax will have a £13bn hit to the economy and generate lower tax revenues, an analysis from the body responsible for promoting North Sea energy firms’ interests has warned. The data from Offshore Energies UK (OEUK), which compares the previous administration’s Energy Profits Levy (EPL) with the new government’s more stringent proposals, predicts capital investment to nosedive from £14.1bn to just £2.3bn over the government’s five-year term. The new windfall tax will also put 35,000 jobs at risk, the body claimed, because projects that might h…