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After participating in the expression of interest of the Ministry of Ecological Transition, for floating offshore wind farms, Repower Renewables, Porto Marghera company, Italian branch of the Swiss utilities company Repower AG, presented to the Port Authority of Catania the application for a state-owned maritime concession for the construction of an offshore wind farm of 33 wind turbines with an adjustable axis of 15 MW each for a total of 495 MW.
The project, as a whole, is located in the Ionian Sea, in front of the eastern coast of Sicily, at a minimum distance of about 36.2 km from the Sicilian coast and 36.7 km from the Calabrian one.
The initiative is worth between 1.2 and 1.4 billion euros and will be able to generate over a thousand jobs between those needed for the construction of the wind farm, and those that will have to deal with its management and maintenance.
The stretch of sea concerned is the one in front of Catania: the submarine cables would be connected to the mainland at a point south of the Fontanarossa airport and then travel about 10 km underground to the connection point with the national electricity transmission grid located near the Terna plant, south of the area industrial area of Pantano d’Arci.
“The location of the plants in the sea has the advantage of offering a better wind resource and, therefore, a better energy producibility, a greater durability of the mechanical parts and a better availability of sites, since onshore sites are subject to saturation, even for the non easy acceptance by local populations in the installation areas ”, explains the accompanying report of the company’s application.
Previously, the company has filed requests of state-owned concessions to exploit wind power with floating-type systems at the port authorities of Crotone in the Tyrrhenian Sea and of Sarroch (Cagliari) in the Mediterranean Sea or Sardinia Channel and now also focuses on the Ionian Sea.
As for the topic of renewable energy sources is now at the center of the government’s economic and environmental policies as well as due to the impact of the Russian-Ukrainian conflict on energy supply capacity, the idea that wind farms are built at sea has in any case met with resistance.
Both from the landscape point of view, but also for the consequences (at the moment only hypothetical) on the flora, fauna and fishing activities.
Repower Renewable (the joint venture created by Repower AG, a Swiss operator, through the Italian branch, Repower Italia and Omnes, a leading French investor) will manage a portfolio of generation plants from renewable sources and the development of new production projects, again in the renewable energy sector.
The Repower Renewable portfolio includes hydroelectric, solar and wind power plants with a total production capacity of approximately 90 MWe.
All the company’s plants and activities are concentrated in the domestic market.
The overall value of the portfolio held by the company is approximately € 100 million.
Repower AG, which is the parent company, has its core business in the production of electricity with its own plants and through shareholdings in Switzerland, Italy and Germany.
Repower AG also designs, builds and operates distribution networks (from 0.4 to 150 kv), substations, transformer stations, substations and distribution lines up to the domestic connection in Prettigovia-Valle del Reno, Engadina-Valposchiavo and Surselva, all in Swiss.
But let’s go back to the initiative proposed by Repower Renewables. In energy engineering, a wind farm or wind farm is defined as a set of wind turbines, more commonly called turbines, interconnected and located in a delimited area with the aim of producing energy by exploiting that of the wind.
There are three types: onshore, nearshore and offshore.
The onshore are located on the mainland in very windy places; the nearshore plants are built at a maximum distance of 10 km from the coast.
They have very similar characteristics to onshore parks, also in terms of production.
Offshore parks are built offshore to obtain large quantities of energy.