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This article was published on July 7, 2015 at 12:59.
The last change is the July 7, 2015 at 13:04.
The sea will give us new energy. Starting from the islands, he promises the Enea, the protagonist of the new technology experiment that could become an operational reality already diffused in a few years. Here the central float that uses waves to transform them into electricity, with a mechanical governed by electronics which is based on the concept of the pendulum. The prototype scale 1 to 12 stands in front of the headquarters of ENEA in Rome. The first units operating will come soon, in parallel with the pilot project which Enel has already launched the island of Elba.
Really suggestive promises: very low energy cost, but not only. For the islands could be a godsend. It could thus resolve the problem of the generation that now independent forces to produce electricity at high cost to high pollution because of small power diesel really inefficient. To replace, hopes the Enea, with green energy. Which will have new momentum right from the new system PEWEC (Pendulum Wave Energy Converter). “A floating system – explains the Enea in a note – very similar to a raft to be placed in the open sea, can produce energy using the oscillation of the hull as a result of the waves.”
Benefits
This solution “has several advantages – it known in a conference Gian Maria Sannino, head of the laboratory of Enea climate modeling – even over wind and photovoltaics: a low environmental and visual impact, less variability hourly and daily and seasonal variation in favor, given that the potential energy from the waves is highest in winter when energy consumption is highest. ” “With a dozen of these devices – Sannino says – you can produce electricity for a town of 3,000 inhabitants, significantly contributing also to counter erosion by reducing the energy of waves crashing on the coast, without impacting significantly on marine flora and fauna. “
The game predictions
” With its 8,000 km of coastline – notes Sannino – Italy has a important potential energy associated with the wave, comparable to that found on the eastern shores of the North Sea. The west coast of Sardinia, for example, has an average annual flow of energy of about 13 kW / m, while that of the north-west of Sicily is about 10 kW / m. ” And it is the ability to predict a more precise can the dynamics of currents and waves the key to make the most of this solution. So much so that the Enea next to the engineering of the new machine has developed a forecast horizon of five operating days it is based on references tracked in Atlas wave climate of the Mediterranean. “This is big news for a sector that so far has estimated the potential energy only through data of 15 buoys distributed along the Italian coast.”
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