Energy from renewable sources means energy from renewable non-fossil sources, namely wind, solar, aero thermal, geothermal, hydrothermal and ocean energy, hydropower, biomass, landfill gas, sewage sludge gas and other biogases.

Latvia has significant potential for the expansion of renewable energy sources (RES), especially biomass. RES in 2012 accounted for 36.3% of total primary energy balance and the two most commonly used forms of renewable energy are fuel wood (27.5%) and hydro resources (7.0%). Wind energy, biogas, biofuels and straw are used to a less extent. Solar energy is used only in very small quantities of pilot projects.