The majority of electricity generated in Libya comes from fossil fuels. More oil and gas will be consumed, resulting in higher CO2 emissions, as energy demand is projected to grow sharply in the near future. A feasibility study of a climate photovoltaic solar thermal collector and its relation to solar photovoltaic and solar water heating systems is being conducted. Based on population consumption in northeastern Libya, the study aims to determine the daily and annual electrical load coverage of 10.5 and 3942 kWh/year, respectively. The Polysun software simulation was used to analyze the electrical and thermal efficiency environment of Almarj city as a case study. Three of 280 W monocrystalline crystal solar collectors were used to generate 1445 kWh/year. By the number of collectors from five to seven, 3420 kWh/year can be generated. Increasing the number of collectors to nine protected 10.5 kWh/day, resulting in 4733 kWh/year of electrical energy, and the average annual consumption of a house is about 10,529 kWh. If the Libyan network losses are ignored, the device will use 263,225 MWh over its 25-year lifespan, resulting in a fuel cost of $47,380. The estimated annual savings per house is 1895 dollars, and the reduction of carbon dioxide emissions for light oil, heavy oil, and gas is 252, 195, and 15447 kg, respectively. Based on the existing study, the hybrid system has a substantial economic viability system compared to other solar systems, depending on the demand for power, heat, or a combination of both. As a result, the Almarj residential on-grid electrical loads, fossil fuel demand, global warming, and pollution to the atmosphere will all be reduced.
