The main purpose of this study was to design and develop an On-grid and Off-grid Solar Photovoltaic Generator, to determine the performance level and acceptability of the device. This project was developed at Bohol Island State University Main Campus, Tagbilaran City, Bohol for the Academic Year 2020-2021. The study utilized the experimental method in designing and assembling the gadget. In doing this, the researcher determined the occurrences during the process. Descriptive method was utilized to gather information in a form of a survey questionnaire to determine the efficiency and acceptability of the gadget in terms of performance, convenience, safety, durability, and cost. The respondents of the study were the selected home owners in the City of Tagbilaran and different experts from the academe and industry. Using the Weighted Arithmetic Mean test, the On-grid and Off-grid Photovoltaic Generator under “performance” ranked the highest with the average weighted mean of 3.86 and interpreted as “Very High”. Safety ranked second with the average weighted mean of 3.85 which is interpreted as “Very High”. Durability had an average weighted mean of 3.73 and interpreted as “Very High”. Convenience was rated very high with an average weighted mean of 3.70. The result of the study revealed that the functionality and acceptability of the On-grid and Off-grid solar Photovoltaic Generator is highly acceptable by the respondents with the overall rating of 3.70 interpreted as very high. Cost was ranked lowest with an average weighted mean of 3.20; although ranked lowest, the researcher made entirely a whole package of solar generator making the gadget expensive. The On-grid and Off-grid Photovoltaic Generator is more efficient due to its performance. This gadget is effective in its course of application. The improvement of the gadget with the use of combined types of photovoltaic system and the knowledge of technicians, future researchers, and teachers or instructors on Renewable solar energy maybe considered for future developments and designs.