Water scarcity remains a critical global challenge, especially in arid and remote regions where access to safe freshwater is severely limited. This thesis examines the design and performance evaluation of a scalable, solar-powered desalination prototype, developed to provide an energy-efficient and sustainable solution for freshwater production. The system features a modular structure, allowing for straightforward scaling and adaptation to several operating conditions. Systematic laboratory experiments were carried out using a data acquisition system. Each test run was characterized by three key parameters: the peristaltic pump velocity, which governs both the feed and permeate flow rates, and the feed/permeate inlet temperatures. Each set of parameters was tested three times to validate the results, followed by comprehensive post-processing to ensure accuracy.