One WindTamer customer is the U.S. Army, which purchased last year a mobile trailer-mounted turbine and renewable energy storage unit containing the Power on Demand system that the military would be able to move around even in battle zones.

FORBES: Power Opportunity for GE, et al: How To Store Wind/Solar Renewable Energy

The base station needs between 1, 200 and 1, 500 watts and to meet that demand the site will have a six-kilowatt turbine and four solar panels.

BBC: 'Generate power'

Other planned projects which have fuelled a demand for building workers include a proposed 30-turbine offshore wind farm at Scarweather Sands, off Porthcawl, the proposed development of film studios at Llanharan, near Bridgend and city centre developments in Swansea.

BBC: NEWS | UK | Wales | Warning over tradesman shortage

The sight and sound of spinning turbine blades on windy stretches of the Australian coast and on inland hills are becoming more common as legislators and consumer demand make renewable energy part of the mainstream.

CNN: story.codringtonwindfarm.jpg