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

  • Gourmet01

    Lifestyle & Travel

    Jun 1, 2017

    Gourmet Cruises

    The Bhende family decided to innovate and, on last April, inaugurated the first floating hotel and restaurant of Mumbai, betting on luxury gourmet cruises aboard the AB Celestial. 

  • #Formato_Certo_para_Site_YVP_Imagens

    Lifestyle & Travel

    Oct 15, 2018

    ANDORRA

    The Andorra's Principality is one of the smallest countries in Europe. It's a territory with only 468m2 covered by valleys, mountains, forests, lakes and much life, in the summer and winter months, adapting the offer of the country...

  • AdobeStock_112601508

    Research & Education

    Jun 1, 2017

    Bicycle trails that shine Bicycle trails that shine

    Until relatively recently the materials that glow in the dark had no further functions beyond decorative pleasure. But the luminescence has been conquering more utilitarian applications and today, literally, it is in the streets.

    ...


  • Tim-Bengel-Schlossplatz-Stuttgart-2015

    Culture & Art

    Aug 1, 2017

    GOLDEN SANDS

    Once you come to a certain age, you come to think you've already seen everything in life. You might think there's nothing else to create or to realize differently. And then, there are these sudden surprises. Beautiful surprises.

    ...

  • 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...

  • AR-170519548

    Business & Industry

    Jul 1, 2017

    GROWING AGAIN

    And again, and again into the sea. Dubai doesn't stop amazing the world with its luxury hotels and lifestyle. But also with the millionaire investments to make the country grow.


  • 1. Roku-The-New-Generation

    Technology

    Nov 1, 2017

    THE NEW GENERATION

    Since 2008 that Roku has been producing boxes for the viewing of virtual contents thanks to the growth, accessibility and popularity of digital television channels as Netflix, Acorn, Mubi, Crackle, Pluto, Apple TV and Amazon Fire...

  • Food & Beverage

    Apr 1, 2015

    Dairy with an Atlantic taste

    The Azores is not only a well preserved and beautiful archipelago in the middle of the Atlantic, but also the home of LactAçores, a cooperatives union set to increase and expand the islands' biggest agricultural asset: dairy products.

    ...

  • 1

    Luxury & Fashion

    Jul 1, 2015

    Golden Sea of Amber

    Amber, the Gold of the North. It is the fossilized resin of pre-historic trees. These segregated the resin, the resin hardened, becoming more resistant, and when the Baltic Sea formed, it took them for a ride. Today they still wash up...