Citrus waste, generated from fruit processing industry, like other biomass, is a source of biomaterials and biochemicals which include fuel and energy. Gaseous, solid and liquid fuels are produced from it, using established technologies. These technologies are based on their ability to optimally disintegrate compound polysaccharides obtainable within the polymeric biomass into monosaccharides, and to effectively convert resulting monosaccharides into biological products with varied applications. Solid biomass often present challenges in ease of handling. Converting them into fuels (liquid and gaseous) deposes this hurdle. Conversion into fuel was initially achieved biochemically, where the biomass molecules were degraded by bacteria or enzymes via digestion (aerobic and anaerobic), fermentation and/or enzymatic or acid hydrolysis; and later on through thermochemical (combustion, pyrolysis, gasification, liquefaction) conversion, where the main objective is the synthesis of thermal energy. Torrefaction, a mild form of pyrolysis, is presently contemplated for successful biomass transformation. Here, the biomass temperature is elevated to about 230 to 300 °C in exclusion of oxygen. This impacts the properties and configuration of the biomass, which will be a determinant of the properties of the power that will be synthesized from it. This chapter explores citrus wastes, as significant wastes emanating from fruit processing industries, underscoring its management and innovative strategies to mitigate its environmental footprint. The characteristics of citrus wastes viz-a-viz their composition and biochemical properties which provides understanding into possible avenues for resource recovery and value addition was covered. The chapter further accentuates the torrefaction processes (oxidative, wet and steam) as a pyrolytic treatment for citrus waste. Its impact on biomass structure and properties, characterization along with benefits of torrefied citrus waste such as reduction in moisture and volatile contents from the biomass, easier grindability, more homogenization composition, higher energy density, hydrophobic behaviour and elimination of biological activity were also examined. Additionally, the effect of thermal treatment on the energy yield and the dry mass of the torrefied biomass (citrus waste), thermochemical properties of the biomass influencing heat transfer and reaction rates, ideal temperature span for biomass consistency and other emerging prospects including hurdle technologies that will yield a better torrefied product were also discussed. Comprehensively attending to these subjects, this chapter aims at providing deeper understanding of synthesizing energy from citrus waste through torrefaction method.