Navantia extends its environmental commitment to all its divisions
The company will make in Ferrol the most ecological ship of the Spanish Navy, the F-110
Promoting a sustainable shipbuilding industry and leaving behind the practices with the greatest environmental impact is part of the Navantia strategy, which has different actions underway to achieve these ends. Thus, it has joined the fight against climate change, joining the United Nations Global Compact and has included among its priorities, among others, the Sustainable Development Goals (SDGs) number 12 "Sustainable consumption and production", number 13 «Action against the Climate», and the number 14 «Underwater Life». The actions he has initiated and those he will design on that path reach all areas of the company and aim to become a pillar of its activity. The company works on the design of less polluting ships, which exceed international standards in this regard (including those of Marpol) and uses innovation so that both, ship models and other services provided go in the same direction. Thus, Navantia is developing models of energy efficiency of its vessels allowing to simulate navigation in different conditions, to offer a service to its customers that allow them to select in advance the most sustainable mode of navigation in terms of route, speed, the draft or trim conditions to guarantee the lowest fuel consumption or the lowest pollutant emissions during exhaustion. A clear example of this commitment is the design of the future F-110 frigate for the Spanish Navy, which will begin to be manufactured at the shipyard in early 2022. It is a ship that will be the most ecological within the Spanish military fleet. Thus, it will consume less light supply than its predecessors, it will have a double hull and will fulfil the highest environmental standards required by legislation. The frigate will have an electric propulsion - less pollutant and quieter - in addition to greater energy efficiency, an increase in the use of sustainable materials and a reduction in other traditional ones, such as cables, using a new integrated system. In fact, Navantia has developed research projects on this regard and plans to reduce the use of cables by up to 20%.
In addition, its tanks will be arranged in a way that, in case of a spill, its consequences would be minimal. On the other hand, from the hand of the marine wind sector, the Fene shipyard has specialized in an industry, the generation of electricity with the force of the wind, respectful of the environment. After entering this market with Iberdrola - which has already made three orders to the naval firm for as many of its parks -, Navantia has managed to position itself in a highly competitive sector with the manufacture of foundations of very diverse designs, adapting to the established requirements. Apart from the factory in Fene, the one in Puerto Real has also been specialized in the marine wind market, providing solutions to obtain a greener and more sustainable energy against other kind of production. In addition to manufacturing fixed foundations - of type jacket— for different European parks, Navantia has also built the structure and electrical substation for wind turbine farms at sea. In record time it has also achieved orders to build semi-submersible structures or for floating parks.
In the company as a whole, the company works to achieve sustainable factories by improving energy efficiency to reduce its carbon footprint in line with the national objectives of reducing greenhouse gas emissions, and has set high objectives to recover most of the waste from different activities carried out, treating them instead of depositing them.
The shipyard from Ferrol has positioned itself in only five years as one of the great references in the marine wind sector worldwide. He has not only manufactured “jacket” type fixed structures, most of them for the Spanish electricity company Iberdrola, but also other types of structures of different design for floating parks, a model of farms that tend to generalize, since the closest marine strips to The coast is already being used. At the moment, the old Astano manufactures components for a park that will work in Scotland and from next spring it is planned to start the execution of the 62 structures that will support the wind turbines of what will be the first Iberdrola offshore wind farm in France.
Repairs uses a blasting method with less impact on the environment
The Repairs division of Ferrol’s Bay uses the blasting mechanisms of the most environmentally friendly vessels. Thus, for surface preparation in ship hulls to remove rust and paint debris, it uses WAB (Wet Abrasive Blasting) technology also called Wet Jet, which consists of a shot blasting circle surrounded by a concentric crown of water which minimizes the dust cloud in suspension typical of the dry jet.
In addition, work is currently being carried out on the filtering and reuse of the water needed in this type of operations in a sustainable way. Traditionally, the dry jet was used, which consists of the projection of high-speed shot (energy) in a jet of compressed air the most commonly used shot is iron silicate and is obtained by grinding the slag produced during the copper refining and smelting process. Apart from production and transportation costs, it has a certain silica content, which can cause silicosis in people who inhale it, while also requiring a waste treatment cost once used.
Hence, the public naval company decided to use another type of alternative procedure in its facilities of the Reparations division - which has docks and dikes both in Ferrol and Fene shipyards - to contribute to the reduction of emissions from dust to the atmosphere.
(Source: La Voz de Galicia)