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PARIS, France, April 5, 2006 (Refocus Weekly)
Renewables provided 13.3% of the world’s total
primary energy supply in 2003, with non-hydro and non-combustible
renewables providing 0.5% of both commercial and non-commercial
energy.
Oil provided 34% of global TPES and coal was 24%, followed by gas
at 21% and nuclear at 6.5%, according to ‘Renewables in Global
Energy Supply,’ a fact sheet produced by the International Energy
Agency. Of the 13.3% for renewables, combustible and waste provide
10.6% and hydro is 2.2% of TPES.
Geothermal was the largest emerging renewable energy source at
0.416%, with wind at 0.051%, solar at 0.039% and tidal/wave/ocean at
0.0005%.
“Renewable energies are essential contributors to the energy supply
portfolio as they contribute to world energy supply security,
reducing dependency of fossil fuel resources, and provide greenhouse
gas mitigating opportunities,” the report explains. “Differences in
definition and lack of adequate data complicated the discussion
between participants on these key issues.”
IEA believes that a fact sheet can facilitate debate on the past,
current and future place and role of renewables in total energy
supply, and the 15-page pamphlet presents “as objectively as
possible” the main elements of the current situation for renewables.
Definitions and coverage of national statistics vary between
countries and organizations, and TPES was calculated using IEA
conventions.
The total world supply of renewables has experienced annual growth
of 2.3% over the last 33 years, marginally higher than the annual
growth in TPES. For emerging renewables, annual growth was 8% and
wind, due to a very low base in 1971, has experienced 49% annual
growth while solar has increased by 29% each year during that
period.
Due to the high share of biomass in renewables, Asia, Africa and
Latin America emerge as the main users of renewable energies, with
most consumption in the residential sector for cooking and heating
purposes. Renewables are the third largest contributor to global
electricity production, and accounted for 18% of production in 2003,
after coal (40%) and natural gas (19%), but ahead of nuclear (16%)
and oil (7%). Most electricity from renewables comes from hydro
(90%) and combustible renewables (6%).
Geothermal, solar and wind accounted for less than 4% in 2003.
In the reference scenario in IEA’s latest World Energy Outlook
(continuation of present government policies and no major
breakthrough in technologies), supply of renewables will increase by
1.8% per year from 1,400 Mtoe in 2003 to 2,300 Mtoe in 2030, an
increase of more than 60%. The share of renewables in global TPES
will remain largely unchanged at 14% and the share of traditional
biomass will fall as developing countries shift to modern forms of
energy. Hydropower will grow by 1.8% per year but its share will
remain stable at 2%.
Other renewable energies (geothermal, solar, wind) will increase
most rapidly at 6.2% per year but because they start from a very low
base (0.5% share in 2003) and will still be the smallest component
of renewables in 2030 with a share of only 1.7% of global energy
demand.
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