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 »

 

Solar energy

LIFE IS THE ONLY ENERGY SOURCE THAT MATTERS

Auguste Mouchout created a steam engine that was powered only by solar energy in 1861. This was an exciting event, but the invention was very costly and it could not be reproduced or even maintained so the steam engine was quickly forgotten.

While the solar powered steam engine wasn’t viable in 1861 this did not stop the efforts of many who knew that solar power could be harnessed and used in many different ways. It was during the 1880’s that the first light converting photovoltaic cells were built. These cells were made of selenium and had an efficiency of one to two percent. It was not long after, in 1891, that the first commercial solar water heater was patented.

For the next 50 to 60 years the developments were not as bold, but even Albert Einstein was working on using solar power, he was even granted a Nobel Prize in physics in 1921 for his work on the photoelectric effect. While the years of solar power went by quietly, in the 1950’s the development of solar power was benefited by the production of the Czochralski meter. This was a process that produced pure crystalline silicone and by 1954 Bell Telephone Laboratories had developed a silicon photovoltaic cell that had a four percent efficiency that was later boosted to eleven percent efficiency.

Solar energy sources future

The chances of producing solar power as a more commercially viable source of alternative energy seem brighter now with the positive research results from many scientists around the world.

Solar equipment manufacturers – PV modules

Solar heaters manufacturers

Inverters and related products manufacturers

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