This document summarizes a study on using a Fresnel lens to concentrate solar rays and transfer heat to a phase change material (paraffin wax) for thermal energy storage. The study tested different configurations of heat transfer tubes for charging and discharging the storage system to provide domestic hot water. Testing showed the paraffin wax was able to store heat in the 50-65°C range needed for hot water. Multiple pass heat transfer tubes provided faster thermal response during discharge but with a steeper temperature drop compared to single pass tubes. The Fresnel lens was able to efficiently charge the storage system during peak solar hours to provide hot water during non-solar periods.