Little sign of the global financial storm raging outside was visible within the cavernous halls of Spain's PowerExpornrenewables and energy efficiency trade fair in Zaragoza. The event, held every other year, has grown to house one of the largest wind power exhibitions in the world, and the expansion was no less dramatic this time. More than 15,000 visitors turned up across the three days, over 50% more than in 2006, to fill an area which grew by almost as much. Wind accounted for well over a third of that, occupying a hall of its own and spilling into neighbouring venues.
展开▼
