Sentences with word «exajoules»

The most optimistic of the four, in - depth scenarios projects renewable energy accounting for as much as 77 percent of the world «s energy demand by 2050, amounting to about 314 of 407 Exajoules per year.

Several different studies have been conducted and 400 exajoules from biomass is not a high estimate.

Some organizations have advocated for a bioenergy target of meeting 20 percent of the world's total energy demand by the year 2050, which would require around 225 exajoules of energy in biomass per year.

Bioenergy, mainly for traditional cooking and heating in developing countries, currently represents over 10 percent of global energy supply or ca. 50 Exajoules per year.

We do not need 500 exajoules of primary energy to run the world, and do not even need half of the end use energy that we use to perform the tasks.

On this basis, the paper says that capturing 12 billion tonnes of CO2 equivalent (GtCO2e) per year (around a third of annual global emissions) would require 156 exajoules (EJ) of energy.

That's 14 TW for a year, every year right now — in energy quantities (multiplying by the number of hours or seconds in a year) that comes to about 120,000 TWh (thermal) which is equivalent to 450 x10 ^ 18 joules, or 450 exajoules (EJ) of thermal energy.

But the discussion is not entirely coherent: for example energy units vary across the chapters — total energy (for a year, or available from a given resource), can be seen here in terawatt - hours, terawatt - years, or exajoules, in some cases referring to thermal, in other cases electric power requirements.

For instance, construction of high - performance buildings and deep energy renovations of existing buildings could save around 330 exajoules (EJ) in cumulative energy savings to 2060 — more than all the final energy consumed by G20 countries in 2015 (ETP 2017).

Today, there are seven billion humans, mostly living in cities using electricity and liquid fuels, consuming 430 exajoules of energy annually.

But when economics 101 was created in the 18th Century, there were one billion humans on the planet, mostly living on farms, using animals, wood, and dung for energy — about 20 exajoules of it a year.

Under the scenarios explored in this report, stabilizing global atmospheric concentrations below 440 ppm required a median increase in renewable energy use of 248 exajoules (EJ) per year by 2050, and potentially as much as 428 EJ.

In the most ambitious climate stabilization scenarios solar primary energy supply by 2050 reaches up to 130 Exajoules per year, which can be attributed to a large extent to photovoltaic electricity generation.

As a comparison, 314 Exajoules is over three times the annual energy supply in the United States in 2005 which is also a similar level of supply on the Continent of Europe according to various government and independent sources.

As shown by the review, projected deployments could result in energy delivery of up to 7 Exajoules per year by 2050.

While the share of bioenergy in the overall renewables mix is likely to decline over the coming decades, it could supply 100 to 300 Exajoules of energy by 2050, the expert review concludes.

According to the US Department of Energy (Energy Information Administration), the world consumption of energy in all of its forms (barrels of petroleum, cubic meters of natural gas, watts of hydro power, etc.) is projected to reach 678 quadrillion Btu (or 715 exajoules) by 2030 — a 44 % increase over 2008 levels (levels for 1980 were 283 quadrillion Btu and we stand at around 500 quadrillion Btu today in 2009).

The figures along the x axis show the exajoules of energy supplied in the U.S. by each of the sources.

According to the US Department of Energy (Energy Information Administration), the world consumption of energy in all of its forms (barrels of petroleum, cubic meters of natural gas, watts of hydro power, etc.) is projected to reach 678 quadrillion Btu (or 7.15 exajoules) by 2030 - a 44 % increase over 2008 levels (levels for 1980 were 283 quadrillion Btu and we stand at around 500 quadrillion Btu today).

According to the International Energy Agency's Bioenergy Task 40, these two regions alone can produce more than 500 Exajoules of bioenergy for exports by 2050, in an explicitly sustainable way; that is, after all the food, fiber and fodder needs for rapidly growing populations are met, and without any deforestation and a look at Africa's sustainable potential).

Roughly, about 400 exajoules of bioenergy can be put into production without heroic measures and without competing with the production of food and animal feeds.

On a global basis, it is estimated that RE accounted for 12.9 % of the total 492 Exajoules (EJ) 5 of primary energy supply in 2008 (Box SPM.2)(Figure SPM.2).