In the last couple of decades, Photovoltaic (PV) solar systems have captured a lot of interest as a clean, renewable energy option. As a result, PV engineering has become an emerging field in engineering education. In order to meet increased learning requirements, new learning resources, an effective curriculum and proper assessment are needed. Pveducation.org is one of the discipline's oldest learning resources, providing PV content for photovoltaic professionals. The purpose of this paper is (1) evaluating the effectiveness of the pveducation.org learning portal from the user's perspective, and (2) find a relationship between the effectiveness of the website and user's learning gains. This study will conduct a systematic assessment of educational technology by using statistical techniques and data collected through a survey.