The Halogen Bulb

A good alternative to conventional incandescent bulb, soon disappeared.

Benefits of halogen bulb:

  • Life of 2000-3000 hours, two to three times more than a conventional incandescent lamp;
  • A “warm” light but whiter than the conventional incandescent bulb. This is the closest to the light fixture;
  • Twice as high as conventional incandescent light efficiency;
  • A stable brightness over the entire life cycle of the lamp;
  • A smaller light to project a more targeted way;
  • No toxic material from entering its composition.
  • A surface temperature of the very high light (200 ° C to over 1000 ° C) which requires special measures for fire prevention;
  • The internal temperature is significantly higher than the standard incandescent bulb (2 500-3 100 ° C) for generating the UV emission. However, the risk is eliminated if a protective screen of glass or plastic covers the bulb, which is usually the case;
  • A greater than the ordinary bulb cost, due to the complexity of its manufacture;
  • If it is associated with a frequently used dimmer, his life will be much shorter, unless you take some steps (see below).
  • Disadvantages of halogen bulb:

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Power consumption, reduce electricity bill

Less is consuming energy when you have knowledge of own consumption of light? According to the results of a test conducted in 100 households, significant differences are shown as a function of families continue or close the status of their consumption and stresses that the contribution of information is much more effective than one that is neutral, that has no comparison with the consumption of other households.

Can you reduce the consumption of light and perennial permanently without feeling back to the era of enlightenment through the candles? Are we able to identify the most voracious consumer devices are and are willing to change our habits? The consumption of light still seems something invisible in many households usually unaware of the sources of over consumption and poorly informed about the impact of their individual effort and contribution in this field.
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Compact Fluorescent Bulb

Benefits of Compact Fluorescent Bulb:

Its life! 10 to 20,000 hours (5 years when used three hours a day). This is the great replacement for the incandescent bulb, the main reason;

Contrary to popular belief, it can have very different shapes (not just the spiral shape).

Its diffuse brightness avoid glare.

It emits up to 75% less heat than incandescent bulbs, to the same degree of brightness.

An analysis of the life cycle (overall environmental impact of a product) conducted by the Inter university Research Centre for Life Cycle of Products, Processes and Services (CIRAIG) for Hydro Distribution is in favor of compact fluorescent lamp versus the lamp Incandescent.
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Hikari, the first urban islet of positive energy in Lyon

Arranged along a nautical square, three new buildings are aligned in the center of the neighborhood, a piece of the city futuristic in prolonging the center of Lyon, built on old industrial remains.

The Hikari project began more than 10 years ago, and currently has 150 hectares, but due to double the surface. This ecobarrio of France must come to term at the end of 2020 and stop producing carbon despite the construction of one million square meters.
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A new flow battery energy storage to help the solar and wind

A new flow battery energy storage to help the solar and wind

US scientists have developed a flow alkaline battery they hope will help alleviate the problem of storing energy from renewable energy sources such as wind and solar.

The battery performance is similar to current flow batteries, but uses non-toxic and cheap to store energy organic molecules. It is precisely the opposite of the existing batteries using metal solutions and they are usually quite expensive.

The energy storage batteries is vital to be able to better develop the energy that comes from sources such as solar or wind. By having batteries that provide sufficient capacity for the storage, energy companies will think more, every time you have to install a coal or gas in order to increase the electrical capacity of the grid.

A new flow battery energy storage to help the solar and wind

Batteries are a technology that provides an answer to this problem, but the market is with a variety of different products, as they are the Li-ion or cell lead-acid, which often involve a high cost and are unable to energy storage for extended periods.

The quality of the flow battery is that they have a better adaptation to the larger-scale energy storage. A battery type where recharge is provided by two chemical compounds dissolved in liquids contained within the system and separated by a membrane. Ion exchange occurs through the membrane, while the two media flow in its own respective space.

Following this loading process, the electrolytes can be stored in external tanks and, being the reversible current return back through the battery to be discharged later.

Michael Marshak, University of Colorado, is who leads the creative team of the new battery. They have found the right key to replace vanadium ions dissolved in sulfuric acid with cheaper components, abundant and non-toxic in the alkaline solution.

The equipment used commercially available organic molecules, such as Ferro cyanide and 2,6-diamino-anthraquinone, commonly used as food additives.

This will lead to different systems to be cheaper or more efficient over time.


With the sunroof, Google wants to help pass solar energy

With the sunroof, Google wants to help pass solar energy

Google has a project in service and for the moment has the name Sunroof, intended to determine whether the roof of a building should be to install solar panels. Thanks to Google Earth, you can evaluate the energy potential of a roof considering exposure and estimate the potential savings.

China is the second largest polluter, like the United States who want to engage in an ambitious plan to reduce emissions of CO2 in order to combat global warming. With the Paris Conference on climate, COP 21, President Barack Obama just made his last fight before the end of his term expiring next year.

“There is no challenge that poses a greater threat to the future and for future generations that change climate, “he said, announcing a program that aims to reduce emissions from US power plants in 2030. The 32 percent energy renewables are at the heart of this plan, particularly solar and wind energy.

If the action is clearly laudable, it also represents a considerable economic attractiveness. The market for solar energy is expanding, and new players are interested in this.

Thus, the car manufacturer Tesla has unveiled its new model you sl to powerwall, a domestic battery that can store electricity provided by solar panels or AC power.

Like other giants of the high-tech, Google is also very sensitive to environmental issues and renewable energy. The Californian firm has launched a new project called S unroof surely foreshadows the great ambitions for the future.


The first homes in the UK that generates more energy than it consumes

The first homes in the UK that generates more energy than it consumes

The Solcer House in Cenin, Wales, was created as part of the Low Carbon Research Institute program. For every 100 pounds spent on electricity, this house will be able to generate 175 pounds in electricity “exports”.

L to first low-cost housing known as a house of ‘positive energy’, which can generate more electricity than its occupants may use, opened last Thursday in the UK.

The modest three-bedroom house built in just 16 weeks in an industrial neighborhood on the outskirts of Bridgend in Wales, costing 125,000 pounds and according to the designers of the University of Cardiff, will allow passengers to use the sun to pay the rent.

When using batteries to store electricity generated from solar panels placed on the roof and because of the thermal insulation, you may be able to export electricity to the national grid for eight months a year.

So for every 100 pounds spent on electricity, should generate export 175 there of according to Professor Phil Jones, whose team of Welsh School of Architecture project Solcer says specifically designed the house to reach the objectives the government proposed in 2006.

I also wanted to show that a house was perfectly feasible to reach the standard for affordable prices with current technology. So you pass the ball to builders demonstrating that, if you want, you can.

The cost of building a house of this type would be lowered if many be erected at the same time. Besides would be breaking that housing exported more electricity than they consume everything that it would. We must expect that the price per square meter in this house was given 1,430 euros, something close to social housing in Wales which lies between 800 and 1000 pounds.


Project sunroof Google calculates the money you would save if you had solar panels on your home

Project sunroof Google calculates the money you would save if you had solar panels on your home

Yesterday we discovered with puzzlement as a German neighborhood in the city of Freiburg produces four times more energy than it produces. And that has a city where they have 1800 hours of sunshine a year, nearly half some of the indexes you have some Spanish cities, so we can quickly show how badly we are doing in this regard in our country.

Something that has to do much with this one is that Google’s new project launched this week and has referred to as “Project Sunroof”. This will calculate the potential of housing for the possible implementation of solar panels. Say that calculates the hours of sunshine a year it receives the roof, for example, your home, so give an estimate of how much money ahorrariais.

Those who live in Boston, the San Francisco Bay and Fresno, have been invited to enter your address on the landing page for Project Sunroof which is the availability of hours of sunshine per year and how much money you would save if they were installed solar panels.

Google says that calculates this information with a database of aerial maps that get perform 3D modeling of the roof. Taking into account the shadows cast by the trees or nearby structures, and then calculates all possible positions of the sun over a whole year. It also includes the history of cloud patterns and temperatures that affect the production of solar energy.

Once all this is calculated, the amount of money you would save if you make leasing of solar panels for 20 years, using a loan to purchase or buy directly appears. Another advantage is that you can even change the amount of roof cover with solar panels if anything the user does not want to cover whole.

In a given example, a house with a rate of 1800 hours of sunlight per year would save $ 24,000 in 20 years including payment of solar panels. Now we just have to take account if you were in a province like Huelva which nearly doubles the number of hours of sunlight per year.


Schlierberg, a German neighborhood where 4 times more energy than is produced is consumed

Schlierberg, a German neighborhood where 4 times more energy than is produced is consumed

From the 70, Freiburg has been increasing its reputation and popularity as one of the ecological capital of Germany. In 1986 the city had a vision for sustainable programs that relegated better transport and energy efficiency are among the best in the world.

Schlierberg is one of their neighborhoods and have known that today generates more than 4 times the energy it consumes. A district that shows the way to become completely self-sufficient, because if now produce more energy than they consume, his goal is to be independent with new batteries powerwall Tesla.

As you might say, the future is there in front of us, we can only cross at him. Schlierberg consists of 59 wooden houses built with green materials in an area of 11,000 square meters.

Schlierberg, a German neighborhood where 4 times more energy than is produced is consumed

Among one of the virtues of this neighborhood and this city is that its inhabitants tend to move on foot or by bicycle, apart from solar energy available, reuse rainwater and use environmentally friendly materials in their buildings.

Freibourg Schlierberg, a German neighborhood where 4 times more energy than is produced is consumed

This neighborhood has in all homes with photovoltaic panels placed in the right direction to receive solar energy from the 1,800 hours of sunshine a year with. Freiburg, the city is among the regions with the most sunny days in the year.

According to Rolf Disch, the architect responsible for the project, the emission of nearly 500 tons of CO2 into the atmosphere is avoided. The houses are constructed so as to have a simple roof and wide eaves that allow the presence of sunlight during winter and protect the home during the summer.

One example to follow, and if we have that here in Spain we Huelva cities with more than 3,100 hours of sunshine a year, which we are not waiting. Just twice a region as referred to in this entry as Freiburg in Germany.


Tesla will double the output of its powerwall no change in price

Tesla will double the output of its powerwall no change in price

Tesla Motors held its annual meeting at the Computer History Museum in Mountain View. During his presentation, Elon Musk, CEO of Tesla, Tesla announced that it will double the output of its powerwall, the storage system for homes, 7 kW to 5 kW peak and continuous value.

The best thing about this announcement is that Musk confirmed that the price will remain the same, $ 3,000 for the version of 7 kWh (daily cycle) and $ 3,500 for 10,000 kWh (weekly cycle). It significantly improves the offer for one of the energy storage devices has been news in recent months.

Tesla offers two versions of its battery system powerwall. The first 7 kWh is ready to be downloaded on a daily basis so that the user can take advantage of the photovoltaic installation on the roof or to manage the use, especially if you have a rather special electric bill. Another advantage would be to have several powerwall, but here the price would rise.

10 kWh the system serves as a backup system for certain circumstances such as the case of a blackout, even if the battery is designed to weekly cycles for 10 years.

Musk admitted that one of the biggest complaints was that a 2 kW continuous output is not sufficient for the needs of a user with your home. So you have heard these complaints and have adjusted supply about 5 kW.

Tesla hopes that this change will enable the general adoption of this type of energy storage at a level that helps users to be energy independent. Aside from having its great importance for certain companies that are reaching important agreements with Tesla to be equipped with this energy storage system that has surprised both friends and strangers.