Solar energy usage through rooftop photovoltaic (PV) system has a very great potential in the Philippines where sunlight is abundant. Its electricity rate is the second highest in Asia. Meanwhile, prices of solar panels are dropping. However, solar energy is not yet widely used and is still in its beginning stage in the Philippines.
This study focuses on the adoption and usage of PV systems among companies and institutions in Metro Manila. It aims to determine the factors of their satisfaction on their PV systems and identify other outcomes of their usage.
The research method used was qualitative research method utilizing grounded theory method for data analysis. The Use-Diffusion model which is one of the models that illustrate the diffusion of an innovative product was applied to this study. As an extension for the UD model, the antecedents for PV System adoption are “Product Cost”, “Electricity Needs and Requirements”, “Regulatory Environment”, “Supplier’s Characteristic and Communication”. These antecedents altogether influences the satisfaction of the users and results to the UD outcome of “Increased Customer Base”, “Pro-environment Brand Enhancement” and “Public Interest to Adopt PV Systems”
One surprising finding of this research is that four of the users interviewed have different perceptions on the net metering scheme. This goes to show that there is a need for coherent, clear and wide information dissemination on this scheme and other regulatory framework that influences PV system adoption.

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