Energetic and Economic Comparison of Different Energy Concepts Based on Solar Energy for Residential Buildings
Abstract
This paper investigates the benefit of the combination of solar thermal systems and photovoltaic systems for residential buildings. In this study, different solar energy supply concepts were modelled in the Matlab/Simulink toolbox CARNOT. The simulations were conducted with changing ratios of installed solar thermal and photovoltaic surface. Each concept was equipped with an optional battery storage. The results indicate an advantage of a combination of both solar systems with respect to the percentage of self- consumption. Economically, solar thermal plants affect the investment costs adversely because of higher unit prices compared to PV modules. Nonetheless, a combination of both systems is useful for some concepts.
Keywords
Solar thermal, Photovoltaic, Residential building, Energy concept,