The use of molten salt as a fluid carrier has important advantages. The operating temperature can be substantially increased, up to 500°C, and the plant is considerably simplified, as the same fluid is used for storage and as a heat transfer fluid. To validate the technology and identify possible problems during operation, a test loop will be built in Évora (Portugal), where the collector developed by TSK-FLAGSOL Heliotrough 2.0 will be installed.