The utilization of environmentally friendly and sustainable raw materials, such as biomass, has become increasingly important in the production of valuable goods and energy while minimizing the CO2 footprint. The growing demand for fossil fuels and products has brought the issue of climate change to the forefront, shifting the focus to the use of renewable energy sources and sustainable living. A holistic approach together with ecological, social, and economic aspects, has gained popularity in recent years, all aimed at mitigating the harmful effects of climate change and environmental degradation. The main goal of this paper is the process of obtaining high-value nanoscale products from biomass, specifically secondary raw materials, which in this case consist of agricultural energy crops. Cellulose from forest and agricultural biomass is considered one of the most abundant biopolymers on Earth. It is an inexhaustible source of raw material produced by plants, microorganisms, and bacteria. Derived from lignocellulosic fibers, nano-crystalline cellulose (CNC) possesses a variety of appealing characteristics, including high strength, stiffness, and transparency, which make it a highly sought-after material for a wide range of industrial applications such as bio composites, coatings, and biomedical materials, etc. The objective of this study was to examine the production of nanocellulose from specific agricultural energy crops and to assess the viability of these crops as sustainable sources for nanocellulose manufacturing. The nanocrystal cellulose dispersed in solution, obtained from these energy crops, exhibits a density of 0.965 g/cm³ and a viscosity that varies between 100 and 130 mPa·s.