Firstgreen Academy

Rooftop solar PV systems are not only about installing modules to maximize energy generation; they must also be planned with equal emphasis on safety, accessibility, compliance, and maintainability. The illustrated rooftop layout highlights how thoughtful spatial planning and clearances are essential for creating a safe, efficient, and regulation-compliant solar installation. Read more…

As the solar energy sector expands rapidly, the role of the solar PV technician has become increasingly critical. A technician is not merely an installer but a multi-skilled professional responsible for safety, quality, performance, and compliance throughout the system lifecycle. The illustrated framework presents a comprehensive competency map covering technical Read more…

The successful execution of a solar photovoltaic (PV) project depends on a structured installation and commissioning process. Each stage—from initial planning to final handover—plays a critical role in ensuring system safety, performance, and long-term reliability. The illustrated workflow presents a comprehensive, industry-aligned sequence of activities that guide installers, engineers, and Read more…

System efficiency is one of the most critical performance indicators of a solar photovoltaic (PV) installation. While solar panels often receive the most attention, the actual efficiency of a PV system is determined by how effectively energy flows through multiple stages—from solar irradiance to usable AC power delivered to the Read more…

A well-designed solar PV system is not just about installing panels on a rooftop; it is about how those panels are electrically arranged and integrated with the inverter to ensure safety, efficiency, and maximum energy yield. The illustrated diagram clearly explains the complete power flow path—from PV modules to AC Read more…

Shading from nearby obstructions is one of the most common reasons for underperforming solar PV systems. This illustration explains how seasonal sun paths, obstruction height, and distance influence shadow formation and energy losses in solar installations. The diagram clearly differentiates between the summer sun path, which follows a higher arc, Read more…

The AC-side connection is the backbone of any rooftop solar PV system, ensuring that clean energy generated on the roof is safely delivered to building loads and the utility grid. This diagram clearly illustrates the complete AC power flow—from the inverter’s AC output on the rooftop to the main distribution Read more…

Rooftop structural assessment is one of the most critical stages in the solar PV site survey process. The image highlights key roof types commonly encountered in solar projects—flat RCC slab roofs with parapets and sloped metal roofs with support structures—along with the essential inspection checkpoints required to ensure structural safety, Read more…