Cheap Renewable Energy In Full By Year 2030

Note:Here begin a series of seven articles related to the possibility that the entire electricity consumption can proceed entirely from renewable energy by the 2030 year.

Introduction
The future plan to optimize the use of cheap renewable energy in the world the next 20 years would consist to build four million wind turbines of  5 MW, 1,700 million  photovoltaic roofs of 3 kW, 90,000 solar plants of 300 MW (including both solar photovoltaic as solar thermal), plus a small portion of geothermal, wave energy and tide.

The calculations leave out biomass (because of pollution and land occupation) and nuclear energy, as well as all non-renewable energy. Wind turbines are larger than those currently operating, even  have been built some wind farms with turbines of 5 MW.

Cheap renewable energy can provide 100 per cent of the world's energy, eliminating all fossil fuels. By Mark Z. Jacobson (Stanford University) and Mark a. Delucchi (Univ. California-Davis).Wind energy and solar energy in the right places would reduce the energy consumed in the world. The authors reject biofuels and nuclear energy. The authors plan requires large 3.8 million of 5 MW wind turbines, 90,000 solar thermal and photovoltaic installations and numerous geothermal, tidal energy and solar roofs worldwide.The cost of generating and transmitting power energy would be less than the projected cost per kilowat- hour of fossil fuels and nuclear energy. There are limitations in shortage of some special materials, together with the lack of political will, appear as major obstacles.
 
In previous years, leaders from around the world gathered in Copenhagen to try to reach an agreement on reducing emissions of CO2 and other greenhouse gases that have been increased for decades. The most effective way to fulfill that goal would be a huge change from fossil fuels to renewable energy sources. If leaders could have confidence that such  transformation is possible, can undertake to an historic agreement,It's possible they will can do it.

 A few years ago former Vice President Al Gore threw a glove:off and back to turn on America with 100% CO2-free electricity within ¡¡10 years !!. The viability of this change was evaluated and take an even greater challenge: to determine how 100 percent of the energy consumed worldwide, for all purposes, could be supplied by wind, water and sun, as early as in 2030.Scientists have been accumulating pieces until present,so that in less than a decade, analyzing different parts of the challenge, the objetive can be achieved; therefore the target to have 100% cheapest renewable energy.

More recently, in 2009, a study by Stanford University ranked energy systems according to their impacts on global warming, pollution, water supply, land use, wildlife and other problems. The best options were, in order, wind, solar, geothermal, tidal and hydroelectric power - all of which are powered by wind, water or sunlight (known by the acronym  WWS).Nuclear power, coal with CO2 capture and ethanol were the worst options, as well as oil and natural gas. The study also found that battery-electric vehicles and hydrogen fuel, could largely eliminate pollution in the transport sector.

This plan to reduce energy waste requires millions of wind turbines, small hydro plants of low environmental impact and solar energy, both photovoltaic and solar thermal. The numbers are large, but the scale is not an insurmountable obstacle, our society  has achieved massive transformations before. An example;during World War II, the United States finished adapting automobile factories to produce 300,000 aircraft, and other countries produced 486,000 aircraft. In 1956, the U.S. began the creation of the state highway system, which 35 years later were extended to 47,000 miles, changing commerce and society, after all. it's  possible make it with the everyone's effort.

Is it possible to transform the world's energy systems and reduce energy consumption? Could be done in almost two decades? The answers depend of the chosen technologies, availability of critical materials,technological advances of the renewable energy and economic factors and political efforts.In following  articles we'll talk more opportunely each of  these aspects.

In the next article  we will continue to speak about:  Only Clean and Renewable Technologies

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