Scientists from the Port Said University in Egypt and the University of Strathclyde in the United Kingdom have proposed to combine compressed air energy storage (CAES) with floating photovoltaics through a novel energy management strategy.. Scientists from the Port Said University in Egypt and the University of Strathclyde in the United Kingdom have proposed to combine compressed air energy storage (CAES) with floating photovoltaics through a novel energy management strategy.. Researchers from Egypt and the UK developed a new floating PV system concept that utilizes compressed air for energy storage. The system has a roundtrip efficiency of 34.1% and an exergy efficiency of 41%. The integrated system includes a multi-stage air compression unit, thermal oil loop, multi-stage gas turbine unit, high-temperature molten salt-based solar power tower unit. . An EU-funded research team is exploring the use of compressed air to store excess energy collected from solar panels. A pilot plant at Plataforma Solar de Almería, a solar technology research centre in southern Spain, will demonstrate a concept they call solar thermal energy that will offer a.