Green light for Gamesa 5MW

Spanish wind group Gamesa expects to have a prototype of its 5MW G128 turbine up and running this summer on the island of Gran Canaria, off northwest Africa, after securing design approval for the offshore machine from Norwegian certification body DNV.

The turbine, which is being erected on a quay in the fishing port of Arinaga, would be ready for a maiden installation at a commercial wind farm in 2014.

Gamesa has developed the 5MW model – which features a 128 metre-diameter rotor and modular, redundant component design, based on technology already integrated into its 4.5MW turbine, with a view to bolstering reliability and boosting energy output.

“Starting with a proven, validated and certified technology is an indisputable competitive advantage," says Gamesa managing director for offshore projects Javier Perea.  

“The variable and extreme conditions offshore wind turbines are exposed to, combined with often difficult-to-access sites, have prompted us to work on turbines like the G128-5.0 MW, which are able to minimise shut-downs, reduce maintenance tasks, and achieve competitive cost of energy and optimal returns throughout a wind farm's entire life cycle."

Gamesa plans to “concentrate its resources in coming years” on progressing two new on- and offshore turbine designs with nominal capacities of 2.5MW and 5.5MW, with a 7-8MW model on the cards “in the medium to long term”.