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reports - Summary Report

2020 Summary Report of Project 1.8 ‘Electricity from the sea’

reports - Summary Report

2020 Summary Report of Project 1.8 ‘Electricity from the sea’

Electricity generation from marine renewable sources has recorded important developments in recent years, due to the large amount of energy available in the oceans. In this context, the ‘Electric energy from the sea’ addresses two topics: the development of a wave motion generation device and the assessment of the potential for effective electricity production from oceanic and wind sources along the Italian coast. The report presents the activities carried out and the results achieved in 2020 regarding the optimisation of the WaveSAX device, a technical-economic assessment of floating offshore wind farms, some selected devices for the exploitation of wave energy suitable for use in Italian seas and the identification of technical-economic, environmental and sea-related criteria for the mapping of potential areas for the exploitation of sea energy in Italy.

The global warming issue is more topical than ever and its consequences in a medium-long term scenario can have important impacts not only on the climate but also on the lives of the people and species that populate the planet. To reduce the share of climate-altering gases emitted into the atmosphere by the electricity production sector (around a third of total emissions), various measures have been implemented, including the production of electricity from renewable sources. This has involved, also in Italy, sectors such as hydro-power, photovoltaics and onshore wind, which make use of technologies that are already mature and widespread. However, in a medium-long term scenario,

the use of sea and ocean sources is also not excluded. Interest is increasing, including in Italy, towards technological development wave energy conversion, a sector which still has to face important challenges and opportunities. These certainly include the creation and provision of low-cost devices, the adaptation of devices to the special characteristics of Mediterranean sites and the use of coastal infrastructure for their installation. The research activity promoted by the project refers and applies to this specific context. In its second year, the project focused on the optimisation of electricity production via WaveSAX device, through numerical studies, wave motion measurements and experimental tests at sea; this also in order to assess the potential for effective electricity production from sea and wind sources along the Italian coast. It also focused on identifying criteria for identifying Italian marine areas potentially suitable for the installation of devices for the production of wave energy, and also included a medium and long-term technical-economic study regarding floating offshore wind power in Italy.

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