We present the three -year project Urban Observatory of Belgrade (UrbObsBel) funded through the Prisma call of the Science Fund of the Republic of Serbia which started in January 2024. We show our instruments and we discuss our first results related to the problem of the light pollution in Serbia. We also plan to perform observations which will provide information on the distribution of energy consumption, which has a major impact on the environment and ecosystems. We pay special attention to the i nstrument we have made, but actually developed by Salazar -Vazquez and Mendez -Vazquez (2020), the visible and near -infrared (VNIR) hyperspectral imaging (HSI) detector mounted on the Tower of the Astronomical Observatory of Belgrade, and discuss its applications.