Indoor farming offers a high potential to supplement plant production. Nevertheless, the high electrical energy consumption remains a challenge to achieve profitability. For a container indoor farm at the University of Applied Science Weihenstephan-Triesdorf (HSWT) a simplified model to estimate the total energy consumption was developed. The model was validated by prediction of two measurement times in January (regarding an empty cultivation unit) and august (during pepper cultivation) (R² = 0.913 / RMSE = 1.6). The model was then used to analyze the impact of two set points for air temperature (20 °C and 25 °C), changes in the switch-on time of the LED over 24 h as well as varying photoperiods and light intensities with mean daily light integral (DLI) levels of 21 and 14 mol m-2 d -1 on the total electrical consumption. As expected a lower DLI needs up to 23-33 % less energy. Nevertheless, the results suggest a potential to reduce energy consumption by higher temperature of 2-8 %.