Solar energy sources

PV solar power - Era-Energy has started to present local, national and global companies developing, exploring and promoting renewable energy sources. More »

The Earth energy and the beauty

The Earth energy sources - Earth’s energy comes from the original formation of the planet and from radioactive decay of minerals. The geothermal gradient, which is the difference in temperature between the core of the planet and its surface, drives a continuous conduction of thermal energy in the form of heat from the core to the surface. More »

The power of the water

Hydropower, hydroelectric power or water power is power that is derived from the force or energy of flowing or falling water, which may be harnessed for useful purposes. More »

The power of the wind

The wind power is the ability of air movement to do work. Today, wind energy turbines are used mainly for production of electricity. It is a clean and renewable energy source that can produce enough electricity to power huge areas. More »

The invisible power

The energy of the wind is invisible and so powerful that has allowed humans to exploit the surface of the planet long before the discovering of electricity. More »

 

Giant or dwarf

September 26, 2012   Alternative battle   No comments
Sun powers life

Some will state that the size always matters while others will count on the effectiveness. Let us take a look at the renewable energy sources. Of course not all territories could benefit from the power of the water as not all have this valuable resource while the sun and wind are for everybody.

Leaders in hydropower –China,Russia,USA,Brazil,Canada, etc. must rely on the transmission grids (and suffer huge losses) to supply users with electricity while small local power plants can support small consumption with minimum losses. So, the question is – Is it better to have an army of few giants or legions of dwarves?

The giant smashes with his feet the land he steps on, while the gentle dwarf smuggles between trees and rocks, keeping the balance of the surrounding environment. And if we look at the nature, we will see that the mass of the tiny living forms exceed several times the mass of the giants (incl. human beings). Let us learn from the ants.

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