Technology

Oct 1, 2016

No reason to cover the sun

Although inventions already exist that allow us to create sustainable electricity for personal use such as bikes, water turbines that generate energy through stream currents, none of them provides enough electricity for sustaining a home, for example.

<

Nowadays, electricity is generated in various ways, in power stations through different technologies and primary sources of energy, such as coal, natural gas, and petrol. However, these resources are not only extremely pollutant, but they are finite as well: ever more scarce, more expensive, and one day they will inevitably end. This is where the renewable energies come in – water, wind, sun, among others.

In the sunny Israel, there is a project underway that aims precisely to increase the level of renewable energy produced. The 121 MW Ashalim Solar Thermal Power Station is in construction since 2014, and is predicted to be finished by the end of 2017, situated in the Negev Desert, in Israel. It is one of the biggest power stations of its kind, for which a company was created specifically to idealize it. Megalim Solar Power Ltd is in charge of constructing and operating this project. It is a BOT company (Build – Operate - Transfer), composed of the American companies GE and BrightSource, and NOY Infrastructure & Energy Investment Fund, from Israel.

The station will work by means of thousands of computer controlled mirrors, called heliostats, set over an area of 3.25km2, that follow the Sun in two axes. The light is reflected in special boiler, called Solar Receiver Steam Generator (SRSG), located at the top of a 240m high tower.

Because they move in alignment with the sun, like a sunflower, the heliostats feature a number of advantages in comparison with the photovoltaic panels. While the latter have a production capacity that varies a lot due to its immobility, and that furthermore decreases in days with little sun, the heliostats produce in a more constant way, taking a good advantage of the sunny hours, and can be stable even in cloudy days. Besides, they can be installed in uneven terrains, something that is not possible with photovoltaic panels.

According to information released by BrightSource, in March 2016 the project already had 1000 construction workers on site, and at that time, 6000 heliostats had already been installed, and the construction of the tower had begun. The unit will include two thermal solar projects, and one photovoltaic project. It is estimated that this station will produce close to 300 MW of energy.

Under a long-term power purchase agreement, a part of the energy generated at Ashalim will be sold to the Government of Israel, enough to provide 120,000 homes with ecological energy, thus helping the country to achieve its commitment of generating 10 percent of its electricity from renewable sources by 2020. With this power station, 110,000 tones a year of CO2 emissions are expected to be avoided.

We are entering a new Era. Because electricity is a rising necessity, it has to be easily produced and accessed. With some dedication, luck, and investment, it is possible to produce enough renewable energy to supply the whole world. There are various sources of renewables: the currents of the rivers and oceans, the wind, the sun. There are many starting points for the expansion of renewable energy. Nowadays, the main power stations work through extremely pollutant means and methods, daily reducing life quality in this Planet, but it is possible to shift to a more sustainable way of life. If there is a Sun to give us energy, there is no need to cover it with pollution.

More Articles

FeaturedArticles

  • Cerveja006

    Science & Nature

    Apr 1, 2017

    DB BREWERY - FROM SAND TO GLASS TO SAND

    DB Breweries on New Zealand, that in 2015 had already became known due to its recycling of the leftover yeasts it uses to brew its beer to create biofuel, is on the move again with an ecologic innovation aimed at saving the world's...

  • doTERRA001

    Helthcare & Wellness

    Apr 1, 2017

    BREATHE NATURALLY

    Pretty much each and every one of the cough drops currently available in any supermarket or pharmacy includes several lab grade chemicals, divided amongst sweeteners, artificial colourants and active agents. 

  • 295bda17-c5e4-458f-995f-62c4ac1da40e

    Food & Beverage

    Jul 1, 2017

    EAT INTELIGENTLY

    Foodpairing is a modern scientific method that has been used to figure out which flavours combine better with one another. This method is based on the principle that food combines better when they have certain common key components.

    ...


  • Prokudin-Gorskii-02

    Culture & Art

    Mar 1, 2017

    SERGEI MIKHAILOVICH PROKUDIN-GORSKY - ONE SPECIAL MAN

    The entrance of a new century always brings additional motivation to experiment and explore new worlds and new techniques. Some end up being vain and even futile. Others, however, cause real and true revolutions in people's lives...

  • 01

    Business & Industry

    Feb 1, 2017

    A REGION OF EXCELLENCE

    Alentejo 2020 – the Regional Operational Program to Alentejo for the period between 2014-2020 is the result of the work developed with the cooperation and partnership of different regional representatives from different sectors (political,...

  • 025

    Food & Beverage

    May 1, 2017

    SKIN TREATMENT HAS NEVER BEEN SO... DELICIOUS

    A sweet temptation that provokes sensations that even its greatest admirers can´t explain. It is a reason for tourist attraction in countries such as Switzerland, Belgium, France, among others. There are even those who become a Chocolate...


  • 1

    Technology

    Aug 1, 2015

    Your car key on your smartphone

    Valeo presented the future of car keys with the new InBlue, the first smartphone and smartwatch-compatible smart key, which will probably become a standard on vehicles in the near future.

  • Megruli khachapuri

    Food & Beverage

    Jan 31, 2016

    Cultural Novelty

    Georgian cuisine is a feast of taste, joy and bright experiences, highly estimated by millions of people. Complemented by famous Georgian beverages, unique music, authentic ambience and interesting history, Georgian cuisine can become...

  • Dressed in Ambition

    Luxury & Fashion

    Feb 29, 2016

    Dressed in Ambition

    In the 21st century, to be a woman is not the same as before. How does a successful woman dress today? No longer have we the laws to measure their skirts, or the ideals that stop them from having a job. A successful woman...