The availability of electrical energy needs in Indonesia causes the energy reserves on earth to decrease. This encourages the government to look for alternative energy sources that aim to produce large enough alternative energy with good quality and quality, but do not have an impact on the environment. There are many alternative energies that can be developed in Indonesia, one of which is the Off Grid Solar Power Generation System (PLTS), which is an alternative power generation system for remote areas or rural areas that are not covered by the PLN electricity network. The difficulty of access to the location makes the investment costs for the development of conventional electricity networks large, as well as low operational and maintenance costs due to the difficulty of transportation routes to the location, as was done in the design of equipment in the Semeru disaster post area. To use these solar panels, a Solar Charger Controller (SCC) of 30 A is needed then PLTS is used with an Off-Grid configuration, a generation capacity of 100 Wp, a 1×35 Ah battery, and an Inverter 1000 W and LM 2596. From the results of the study, it was found that The solar cell at 15.00 produces an output voltage of 17.78 V and an output current of 4.46 A. The SCC produces an output voltage of 12.3 V and a current of 3.8 A. The battery output current depends on the intensity of sunlight that occurs when The solar panel is charging the battery.