In rural Ethiopian traditional fuels like kerosene and firewood are the main sources of energy used rnfor lighting purpose. They are a major factor for environmental problems and health risks that affect rnthe wellbeing of low-income rural households. However, Ethiopia has a vast potential for renewable rnenergy resources like solar energy that have not fully utilized. The main aim of the study was to rnassess the determinants of household adoption of solar energy in the Gurage zone. In order to rnachieve the objective of the study, data were collected from 384 households using a survey rnquestionnaire from Cheha and Ezha woredas. The collected survey data were analyzed by rndescriptive statistics and econometric model (probit model). The result of the probit model reveals rnthat the adoption of solar energy has a positive and significant relation with household income, rnremittances, education, marital status and ownership of cattle. But the adoption of solar energy has a rnnegative and significant relation with household size, sex, and age. Based on the findings, the study rnrecommends that the government should enhance in poverty alleviation program in rural areas and rnimprove rural household wealth, increase access to education and encourage women by giving rnespecial service like credit access and creating awareness, to increase the adoption of solar energy rntechnology.