| Renewables 2018 is the IEA market analysis and forecast from 2018 to 2023 on renewable energy and technologies. It provides global trends and developments for renewable energy in the electricity, heat and transport sectors.
Modern bioenergy is the overlooked giant within renewable energy. Modern bioenergy (excluding the traditional use of biomass) was responsible for half of all renewable energy consumed in 2017 – it provided four times the contribution of solar photovoltaic (PV) and wind combined. Most modern bioenergy is used in final energy consumption to deliver heat in buildings and for industry.
Bioenergy is the largest source of growth in renewable consumption over the period 2018 to 2023. Bioenergy – as solid, liquid or gaseous fuels – will account for 30% of the growth in renewable consumption in this period. This is a result of the considerable use of bioenergy in heat and transport. Other renewables have less penetration in these two sectors, which account for 80% of total final energy consumption.
In 2023, bioenergy will remain the predominant source of renewable energy, although its share of total renewable energy declines from 50%, in 2017, to 46% as the expansion of both solar PV and wind accelerates in the electricity sector.