"Solar fitness and wellness" - A unique design for sustainable wellness technologies

A spa facility with two saunas and a steam bath aiming at a primary energy demand reduction by a factor of 6 with reference to a conventional system was designed and built into the NEST innovation platform. For performance analysis, simulations over the course of a year were performed and calibrated with available measurement data. It was found that the efficiency goal along with the targeted annual net zero energy balance could be achieved. For an in-depth performance analysis in the future, a more stable operation and optimized control is needed along with measurement data for a full year of operation.