How much profit will a turbine turn?

Christopher Booker,Telegraph
"Developers of wind farms offer 'sweeteners' to local communities, but they may be tiny compared to the revenues. .....As a rule of thumb, the annual income per MW fed to the Grid from wind energy is around £800,000, half from the sale of the electricity, the other half from the subsidy we all pay through our electricity bills under the Government’s Renewables Obligation. (These can only be rough averages because the value of each varies.) So the income from the Eye turbines might be around £1.6 million a year – which hardly makes the £7,000 offered to the locals for the blighting of their skyline the bargain of the century."