Unlicensed installations of electrical energy generation from renewable energy sources continue increasingly in Turkey. Especially, the high rate of increase in electricity prices has enabled consumers to direct their investments toward renewable energy sources. In this study, techno-economic analyses of unlicensed grid-connected solar power generation plants, which were designed as both land and rooftop installations with the capacity of 1215 kWp/1000 kWe in different climatic conditions of seven cities in Turkey (Ağrı, Antalya, Balıkesir, İstanbul, İzmir, Konya and Samsun), were conducted. The technical part of the analyses was carried out using the PVsyst simulation software. Also, levelized cost of energy, net present value, internal rate of return, project and equity returns were calculated for all cities. In the economic analysis, 100% offsetting, 50% offsetting- 50% electricity sale, and 100% electricity sale options were used. For the annual electrical energy production, the highest value was obtained for the land installation in Antalya with 1988 MWh/year, and the lowest value was calculated for the rooftop installation in Samsun with 1234 MWh/year. For the system performance ratio, the highest and lowest values were found for the rooftop installation in Ağrı with 80.07% and the land installation in Antalya with 75.92%, respectively. The highest net present value and internal rate of return were obtained for Antalya by considering all scenarios.