Solar Energy System Engineers perform site-specific engineering analysis or evaluation of energy efficiency and solar projects involving residential, commercial, or industrial customers. Design solar domestic hot water and space heating systems for new and existing structures, applying knowledge of structural energy requirements, local climates, solar technology, and thermodynamics. The Solar Energy System Engineers design or develop vacuum tube collector systems for solar applications. Perform thermal, stress, or cost reduction analyses for solar systems. Test or evaluate photovoltaic (PV) cells or modules. Create checklists for review or inspection of completed solar installation projects. Develop standard operation procedures and quality or safety standards for solar installation work. Perform computer simulation of solar photovoltaic (PV) generation system performance or energy production to optimize efficiency. Provide technical direction or support to installation teams during installation, start-up, testing, system commissioning, or performance monitoring. Develop design specifications and functional requirements for residential, commercial, or industrial solar energy systems or components. Review specifications and recommend engineering or manufacturing changes to achieve solar design objectives. Create electrical single-line diagrams, panel schedules, or connection diagrams for solar electric systems, using computer-aided design (CAD) software. The duties of Solar Energy System Engineer includes to help a dairy farmer become energy independent by designing a solar photovoltaic system that will fit on a barn roof. Design a solar hot-water heater for a home so that a family can enjoy long, hot showers without increasing their energy bill. Oversee the installation of a home solar energy system to make sure it is all done properly. Draw up blueprints of a solar photovoltaic system to be installed on the sides of a new skyscraper.