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This study aims to obtain an overview of the effect of temperature on energy transfer capacity by laser which can later be used as one of the basic considerations for transferring electrical energy through air that is converted into the form of light until it is received by the receiver (receiver) by comparing the transmitted power and power received. The research method used an experimental method with the design of a laser and a photovoltaic cell as a receiver. Schematic experiment starts with setting up equipment. Then treated with temperature changes as an effect on the laser. The results of the treatment were analyzed so that conclusions were obtained. Based on the results of the study, it was found that the significance level of the calculation of the probability price or the significance coefficient was 8.26E-30 which means smaller than the specified error rate / alpha (α) of 0.05. And if using the coefficient F, the price of the calculated coefficient F is 459.3736 which means it is greater than F table 4.001191. In accordance with the provisions that apply in testing the hypothesis, it can be concluded that the null hypothesis (H_o) which states "No effect of temperature on output power" is rejected. This means that the results of the evidence accept the alternative hypothesis (H_1) which states "There is an influence of temperature on the output power". The correlation of the effect of changes in temperature to output power gives the equation y=3E-10x^3-3E-08x^2+6E-07x+5E-05. So it can be concluded that temperature changes have an effect on output power