GLOBAL ENERGY TRANSFORMATION – Roadmap To 2050

The power sector has made significant progress in recent years, but the speed of progress
must be accelerated. In 2017 the power sector added 167 gigawatts (GW) of renewable energy
capacity globally, a robust growth of 8.3% over the previous year and a continuation of previous
growth rates since 2010 averaging 8% per year. Renewable power generation accounted for an
estimated quarter of total global power generation, a new record. New records were also set for
solar and wind installation, with additions of 94 GW in solar photovoltaic (PV) and 47 GW wind
power, including 4 GW of offshore wind power. Renewable power generation costs continue to fall.
There is ample evidence that power systems dominated by renewables can be a reality, so the scale
and speed of renewable energy deployment can be accelerated with confidence.
Industry, transport and the building sectors will need to use more renewable energy. In these
sectors, renewable sources including increased renewable electricity supply, but also solar thermal,
geothermal energy and bioenergy, must play important roles. Renewable electricity will play an
increasingly important role but a large contribution are renewable fuels and direct-uses that are
needed for heat and transport. For these the use of biomass could provide a little under two-thirds
of renewable energy used for heat and fuel; solar thermal could provide around one-quarter; and
geothermal and other renewable sources the remainder.
Energy efficiency is critical in the building sector. However, the slow rate at which energy
efficiency in the sector is improving, due in part to the low building renovation rates of just 1% per
year of existing building stock, remains a major issue. A three-fold increase in this renovation rate
is necessary. In industry, the high energy demand of certain industries, the high carbon content of
certain products, and high emission processes, require novel solutions and lifecycle thinking.

Fuente: IRENA

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