On the last day of the Expo Mediterranean Wind Fair 2011 in Rome, the protagonists of the Italian research has presented a series of solutions to improve the efficiency of wind turbines and wind farms. More weapons to overcome the uncertainty that surrounds the field, opened by the introduction of tax Robin Hood, and the delay in defining the new incentive system.
The last day to excellence of the Italian research, world leader in the development of new technologies to improve the efficiency of generators and wind farms. At a conference on the subject, Frassino Roberto, a professor at the Polytechnic of Milan and Assocompositi president, explained how the introduction of new composite materials that allow wind turbines to produce bigger and lighter and therefore effective. "In this context, Italy is at the forefront," said Ash - with many research centers of excellence. In particular, in the wind, begins to suggest the use of carbon fiber instead of fiberglass blades for large, up to 100 meters long, for the next generation of turbines of 10 MW and beyond. A demonstration of the approved construction techniques was held at the Hotel Fiera di Roma 6, stand Assocompositi, where three days of the fair was built a small wind turbine composite materials.
The University of Milan, Department of Aerospace Power, a notification of a new technology that allows you to create scale models in wind tunnels to test large wind turbines.
The system is in development for more than two years - says Alessandro Croce Politecnico di Milano - and was developed by our department in collaboration with the manufacturer Vestas. We have overcome the technical difficulties of scale models to give exactly the same mass and the aerodynamic characteristics of wind turbines and recently large wind tunnel started in Milan also evaluate the performance of offshore wind turbines. To study the wind of the fan is not only a better design, but to test the limits declared dangerous situations throughout the year and also to assess the interference and turbulence in a wind turbine are made between and reduce power generation.
These fundamental studies that can be supported by sophisticated systems of data collection and interpretation of production and operation - Matthias finally suggested Boccolini, GL Garrad Hassan, the group specializes in analysis and advice on wind parks -. According to the figures we have, in fact, all wind power plants in the world in 2010, lost revenue to 500 million euros due to inefficiency. Improved efficiency may mean, for example, an Italian company, with approximately 180 MW of installed wind power, increased revenues of approximately 450,000 per year. A reference scenario in which wind energy incentives tend to be further reduced. "Increasing the effectiveness of the technology is a crucial step to overcome certain situations that, at that time, may hinder the development of wind energy in Italy, the Robin Hood tax, introduced by the new budget law also in the production of energy.
An injury to the wind industry, but also to finance the state itself, is the comment given in unison by several companies that produce electricity from wind power in Italy. To get an idea of the damage - Luigi De Simone said Icq Holding, a company that produces and control of wind farms in all regions of the South Centre - that the day after introduction of new taxes, Italian companies in the stock industry lost less than $ 5 billion in market capitalization. Of these, 1.6 million are considered and enterprises controlled directly by the State, with a loss to the Treasury, which may exceed the benefits to the same extent.
But the problem for companies is not only to pay a new tax. The worst - Edens, Conrad said Bacchus - Edison Energie Speciali - is that there are still orders of Legislative Decree 28/2011, which in March changed the whole scenario of renewable energy in Italy, including wind power. The rule states that from 2013 will end the current incentive system based on green certificates, but does not clearly define what is to be replaced.
"We also know that the licenses for wind power will be awarded by an auction mechanism, but is not yet clear how it will be structured. Companies like ours who are planning long-term investment, can not work in this situation of uncertainty. "For all this, plus the incredible fragmentation of the legislation - said Antonio Cammisecra Enel Green Power - there are different scenarios operational, not only from region to region, but even at the municipal area. And then there are delays in the permits: later this year will bring us finally to complete the process for a wind farm, we started in 2001 10 years for an OK from the authorities. The real danger - Charles ends of the Primate of Italy, International Power, Suez Group companies, GDF - is that groups operating in Italy in the wind will turn elsewhere, and to abandon Italy to target their investments elsewhere.
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