Agriculture plays a crucial role in ensuring food security and supporting rural livelihoods, but its sustainability is often challenged by water scarcity and reliance on non-renewable energy sources for irrigation. Solar-powered pump irrigation systems (SPIS) have emerged as a promising alternative, offering an eco-friendly and cost-effective solution for farmers, especially in regions with abundant solar resources. This study aimed to assess the effectiveness of the Halang (Palangue) Solar Pump Irrigation System in Naic, Cavite, with a focus on its operational performance, sustainability, and impact on agricultural productivity. The research employed a descriptive-evaluative method, utilizing surveys, interviews, and direct field observations to gather relevant data from farmers, irrigation association members, and personnel from the NIA Cavite-Batangas Irrigation Management Office. The study focuses on key indicators including Organizational Capability, which encompasses operation and maintenance, technology adaptation, and risk mitigation, as well as Community Benefits such as cost efficiency, environmental safety, and productivity. Findings show that the systems organizational capabilities are rated as highly effective, particularly in areas of operation, maintenance, and technological integration. These aspects align well with established best practices in irrigation management, aimed at ensuring efficient water use, proper system design, and effective upkeep. Moreover, the study reveals strong and significant relationships between the systems organizational strengths and the resulting community benefits, indicating the systems overall effectiveness. However, while the link between technology adaptation and environmental safety is positive, it is only moderately strong—suggesting room for improvement in this area. These results emphasize the need for ongoing development in both organizational strategies and technological advancements to maintain and enhance the positive impact of the Halang (Palangue) Solar Pump Irrigation System within the community.