28 Feb 2011 12:02:06
Vertical axis turbines 'could cut cost of wind energy'
Vertical axis turbines have the potential to reduce the cost of generating power from offshore wind in some circumstances, a new study has concluded.
Commissioned by the Energy Technologies Institute (ETI), the project examined the potential benefits of the Aerogenerator system developed by Wind Power compared to traditional wind turbines, which have been adapted from onshore designs.
Dr David Clarke, chief executive of the ETI, explained: "There are benefits in terms of the design of the turbines and accessibility at sea which could help reduce the cost of energy, although it is still early days in terms of delivering a full scale prototype."
Both fixed and floating structures were examined in the study, which was also backed by OTM Consulting, Cranfield University, the University of Strathclyde, Sheffield University, James Ingram & Associates, CEFAS and QinetiQ.
It found the floating vertical axis turbines could be placed in water with depths of 60 metres, allowing them to benefit from higher wind speeds and subsequently cut the cost of energy.
The ETI is also currently calling for proposals for its Tidal Modelling Project, which will examine how the extraction of energy at one site could affect conditions at another.