Thermocline Storage Tank with Concrete Filler. Lessons Learnt During the Tank Erection Process in the Polyphem Project, M. Rodriguez-Garcia, E. Rojas, A. Ferriere, L. Padilla, J. Caruncho, SolarPACES 2022, Alburquerque, Estados Unidos, 27-30/09/2022, SolarPACES, Oral