This article describes a solar power system for a remote off-grid fishing community that is not electrified and is located in an isolated area, isolated by a river, for which the government cannot provide power access. The community cannot sustain a power supply using a generator simply because of the noise and environmental pollution that accompany it. An optimised PV system, together with battery storage and converter sizing, was designed using HOMER Pro software, taking into account the average energy demand of the community. Four alternatives—PV, diesel generator, PV+diesel, and PV+wind—were compared. Both solar and diesel options were cost-effective; however, we chose solar because it is significantly more environmentally friendly and does not produce operational pollution. The solar system is a reasonable, feasible, and environmentally friendly power supply for the community.