Showing posts with label Resources. Show all posts
Showing posts with label Resources. Show all posts

Tuesday, 30 July 2013

Benefits of Non Renewable Resources

A non renewable resourceA non renewable resource refers to the natural resources that cannot be generated, reproduced, or grown. They are fixed and therefore cannot be moved in any way possible. As a result, they can also be known as exhaustible sources.


95 percent of the world’s electricity needs is made up by non renewable resources. They include oil, coal, and gas. This resource of energy becomes depleted with time unlike renewable energy. Non renewable resources are consumed much faster than they can naturally be created. Due to the increase worry about the limited supply of these resources, researchers have started to look for permanent, practical solution to this crisis of energy. Non renewable resources have a number of advantages.
Cost- Renewable energy requires a high start up cost to facilitate, nonrenewable resources are less expensive to use. However, as nonrenewable sources become depleted with each passing day, prices are anticipated to rise dramatically. The major financial benefit of nonrenewable-energy- resources lies in the reality that the primary start up cost has already been taken care of.
Convenience- nonrenewable resources are more convenient than renewable resources. For example, it is easier to find a gas station than to find hydrogen powered refueling station. Even though nonrenewable sources are limited in supply, most of them are still relatively plenty. In addition, the oil that is extracted from the ground every year exceeds the amount of biofuel that is produced each year by far.
Location- one of the main disadvantages of using the renewable sources of energy is that most of them can only sited in some specific certain locations. For instance, solar panels can only be installed in places which receive a certain amount of sunlight consistently. Also wind turbines, used for the production of electricity can only be effective if positioned in places which receive adequate wind supply. By contrast, natural gas and oil are easily transferred through- pipelines -to many areas at a lesser cost.
Integration- nonrenewable resources are integrated into the global infrastructure, since they provide the majority of the world’s power. Making transition to renewable resources will need wholesale changes not only in production but also in the technology to dispense these resources.
Economic benefit- Millions of people are currently employed by the fossil industry and it generates a lot of millions in the revenue.
The benefits of nonrenewable-energy- resources are that it is easy and cheapto use. There is no other better way to transfer, use, and store energy than gasoline for powering cars. Fossil fuels can be pumped very quickly into a car.
Nonrenewable resources are widely available and affordable. Diesel and oil are still the best options for providing power to vehicles. They are very easy to generate and cost effective. Nonrenewable resources also have market value where manufacturer or supplier makes money and pays their workers enhancing economy.
Nonrenewable resources like coal and oil are naturally present in the universe. Mining of coal is relatively easy and cheap. Oil is the most efficient form of fuel. All these nonrenewable resources are easy to extract from the earth and are more convenient to use.


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Monday, 29 July 2013

EIA: Non-Shale Gas Resources Add Significantly to Recoverable Global Estimates

An updated estimate of technically recoverable global shale gas resources by the U.S. Energy Information Administration (EIA) puts them at 7,299 trillion cubic feet (tcf)—10% higher than estimated in 2011. The June-released World Shale Gas Resources: An Initial Assessment of 14 Regions Outside the United States surveys at least nine new countries and double the number basins (95) and formations (137) and adds about 47% to the 15,583 tcf of proved and unproven non-shale technically recoverable natural gas resources previously estimated (Figure 5). Globally, 32% of the total estimated natural gas resources are in shale formations, while 10% of estimated oil resources are in shale or tight formations, the EIA concludes.


According to the assessment, China leads the world with an estimated 1,115 tcf of technically recoverable shale gas resources, followed by Argentina and Algeria. The U.S. is fourth with 665 tcf, Canada is fifth with 573 tcf, and Mexico is sixth with 545 tcf. Expressed interest or exploration activities have begun in shale formations in a number of other countries, including Algeria, Argentina, Australia, China, India, Mexico, Poland, Romania, Russia, Saudi Arabia, Turkey, Ukraine, and the UK, the report says.


5. Growing shale oil and gas estimates. In a new assessment, the
U.S. Energy Information Administration (EIA) estimates the world’s
shale gas resources are 10% higher than previously thought. This
May 2013 map shows the global basins assessed. Red areas
represent basins assessed as having technically recoverable
resources while tan areas show basins assessed that had no
recoverable resources. Source: EIA


Tight oil and shale gas resources have “revolutionized” U.S. oil and natural gas production, the EIA notes, providing 29% of total U.S. crude oil production and 40% of total U.S. natural gas production in 2012. “However, given the variation across the world’s shale formations in both geology and above-the-ground conditions, the extent to which global technically recoverable shale resources will prove to be economically recoverable is not yet clear,” the agency says.


The market effect of shale resources outside the U.S. is expected to depend on their own production costs, volumes, and wellhead prices. “For example, a potential shale well that costs twice as much and produces half the output of a typical U.S. well would be unlikely to back out current supply sources of oil or natural gas. In many cases, even significantly smaller differences in costs, well productivity, or both can make the difference between a resource that is a market game changer and one that is economically irrelevant at current market prices.”


More work remains to be done, the EIA says, however, noting that the assessment does not include prospective shale gas formations underlying large oil fields in the Middle East and the Caspian region.


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