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Europe's largest solar power generation and storage project ◾ Spanish PV group Sivortex is planning a project that combines 100 MW of photovoltaic generation with 200 MWh of liquid CO2 storage. ◾ The Catalan company plans to invest €120 million to build the plant, which will occupy 274 hectares in the La Paz business park and offer “shared self-consumption at a stable price to companies in the territory,” Sivortex CEO Carlos Badía told . Once developed, the project will boast the largest PPA in the European Union, according to the company. ◾ In this storage system, conventional batteries are replaced by an industrial system that stores excess generation from the PV plant by thermal transformation of CO2, through a compressor that cools the gas and passes through to liquid storage in specific deposits of thermal batteries. ◾ During the night the process of converting liquid into gas begins at the pressure which moves a turbine generating electricity. The gas that has passed through the turbine enters the cup during the low pressure gas phase. ◾ According to the company, the system has an efficiency of 74.4%, and has several advantages over other batteries tested by the company, such as flywheel, gravity and lithium batteries, “which have problems with charging cycles and are very polluting,” Badía added. ◾ When there is no PV generation but there is demand, this process is used. “The cycle is infinite; it can be reversed as many times as you want, and it uses a totally innocuous gas. ◾ Sivortex stresses that the importance of renewable energy storage available outside of solar hours has become strategic. “This trend will transform the energy sector in the coming years. The CO2 battery has a storage capacity of 200 MWh and a service capacity of 10 hours, without negative external factors, critical raw materials and inertia of charge and discharge cycles.” ◾ The project would employ a total of 181,818 540 W PV modules and a total of 28 inverters. The system also has some 3,906 autonomous axes and individual trackers, the latter of which, according to the company, would optimize production by more than 30% compared to a conventional tracker, and reduce the number of PV modules required by 21%. ◾ “In terms of performance, cost and, above all, maintenance, we think that right now there is no technology that can surpass our system, which also has a useful life of 30 years, practically the same as that of a photovoltaic plant,” the Sivortex CEO pointed out. ◾ The Actuel Solar project, whose technology will be used in Spain for the first time, will employ a software called Actuel to manage and optimize production and consumption and also use artificial intelligence to gain in efficiency. The source: PV Magazine #energyticslimited #energyefficiency #renewableenergy #solarpower #liquidco2storage

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