Briggs Marine has signed a contract with Vestas - Celtic Wind Technology for part of the work installing one of the UK's first offshore wind farms. The turbine manufacturer, in consortium with Mayflower Energy Ltd , has secured a £74m wind farm contract from National Wind Power to install 30 two-megawatt turbines at Wind Power's North Hoyle Offshore Wind Farm. The development a few miles off Prestatyn and Rhyl in North Wales is one of 18 offshore wind farms planned for UK waters.