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Images of Moura demonstrator

 

Concept and project objective

The Dish Stirling systems have demonstrated the highest efficiency of any solar power generation system by converting nearly 31.25%  of direct normal incident solar radiation into electricity after accounting for parasitic power losses. Therefore, the Dish Stirling technology is anticipated to surpass parabolic troughs by producing power at more economical rates and higher efficiencies. Because the Dish Stirling systems are modular, each system is a selfcontained power generator, which can be assembled into plants ranging in size from kilowatts to 10MW. However, the aforementioned technology is not commercially exploitable to date as other Concentrated Solar Power (CSP) technologies, such as tower and Parabolic solutions. This is because the current solar dish technology still presents several limitations: high costs, limited life time, low system stability and reliability.

Why BIOSTIRLING?

To research, develop and implement a new technology capable to allow the commercial establishment of the solar dish technology at large-scale, an interdisciplinary approach is necessary. The BIOSTIRLING Consortium is constituted by three industrial companies (GESTAMP TOUGHTROUGH and LÓGICA), three technological SME’s (ALENER, MACHTTECHNIK and CLEANERGY) and an important group of research centres and Universities (JYI, CTAER, US, CSIC, ASTRON, IT, MPG and FRAUNHOFER). This multidisciplinary team covers all the main aspects of the technology: structure, glass, engine, hybridisation, storage and also experts in demo-projects.

The BIOSTIRLING Project is based on the achievement of four targets simultaneously: to reduce costs, to increase the efficiency, to optimize the dispatchability and to increase the life-time , in order to validate a new commercial solar dish technology at demonstration scale.