By 2050, the world's population is projected to reach 9 billion people, tripling energy consumption from the 2013 level of 900 exajoules. Buildings will account for 70% of energy use as urbanization increases. The energy mix in 2050 is expected to shift significantly from 2013, with coal reduced to 27% from 23%, oil down to 9% from 37%, nuclear at 8% from 4%, and growth in renewables like solar increasing to 20% from 0.5%, wind to 8% from 3%, and hydro maintained at 4%. This projection requires a major expansion of renewable energy over the coming decades.

1. Insight to Energy Mix in 50 years
Where the Energy goes?
Buildings
2013
2050
Population is
7 billion people.
Population is expected
to reach 9 billion people.
Energy
Consumption in
Energy Distribution
2050
Triple
Hot Water Heating
Classification
Industrial
37%
Nuclear 10 %
50%
70%
900 Exajoules
Energy
Mix
2050
20
9 x 10 Joules.
Nuclear
USA France Japan
Germany Russia
Marina
Stone & Glass
Rail
Food
Perspective in Renewable Energy
Coal
China USA India
EU Australia
Geothermal
Solar
Oil 37 %
Solar 0.5 %
Geothermal 0.5 %
Biomass 1 %
Wind 3 %
Hydro 4 %
Coal 23%
Hydroelectricity
1
Mid-Sized
can produce enough
to power up to
Energy
Mix
2013
China Brazil USA
Canada Russia
Volcanoes & Geysers
are examples of
Geothermal
Energy.
Silicon from just 1 Ton
of Sand, used in
Refrigerators in
USA consume about
300
Photovoltaic Cells,
Wind
China USA
Germany Spain
India
Air
Geothermal 4%
Solar 20%
USA Philippines
Indonesia Italy Mexico
Germany Italy USA
Japan China
Vehicles
Paper
Biomass 8%
KSA Russia USA
Iran China
Transportation
Petroleum Coal
Hydro 4 %
Oil
Russia USA EU
Canada Iran
Chemicals
Wind 8 %
Top Energy Suppliers
Natural Gas
Other Industries
Oil 9 %
Triple means
Primary Metals
Gas 10%
Cities Habitation will increase to 70%
28%
Lightening
Coal 27%
2013 Consumption
35%
Heating, Ventilation,
Air conditioning
Biomass
Nuclear 8%
Gas 23%
USA Brazil China
Germany Austria
References:
http://phys.org/news/2011-05-renewables-major-world-energy.html
http://www.eia.gov/cfapps/ipdbproject/iedindex3.cfm?tid=44&pid=45&aid=2&cid=regions,
&syid=1980&eyid=2011&unit=MBTUPP130226 UKERC Energy Scenarios 2050
could produce as
much
electricity
as burning 500,000
Tons of
the same Energy as
25 large
Power Plants
produce
each year.
BCSE_BNEF_Sustainable_Energy_in_America_2013_Factbook
Berthoud_-_Sustainable_Energy_Mix_-_Global_Pathways_Towards_2050
Briefing Metastudy energy scenarios
Enough
Sunlight falls
on the earth's surface
every Hour to meet
world energy demand
for an entire
year.
To power
USA
with
a field by the size
of Michigan is
required.
PUB_World-Energy-Insight_2012_WEC
shell-global-scenarios
statistical_review_of_world_energy_full_report_2011-2012