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23.10.09
Solar panels on roofs, parking lots
Pocket Piglets
The first floating wind was opened in North Sea
Technology: wind energy - at our disposal
Maldives introduce green tax on tourists
An earthquake of magnitude 8 on the Richter scale hit Samoa, causing a tsunami
In Japan, and snow is transformed into electricity!
Installation of photovoltaic electricity production last generation
Installation of 2 025 (w), is composed of high quality components produced by companies SunPower SMA USA and Germany, making exceptional electrical parameters: yield 18.5% and solar power panels 200w/mp * for power, and over 95% of the inverter coupling network.
Record of PET dive
22.10.09
Light pollution
Light pollution is caused by inefficient urban lighting, the lighting of roads and highways incorrect or inadequate private lighting and causes a number of problems.
It speaks of light pollution when artificial lights are so numerous and ubiquitous that harms normal and desirable dark at night.
Thus, at nightfall, numerous artificial light sources (urban lighting, billboards, office permanently illuminated ...) replace the sun in cities to the smallest village.
Light pollution is a form of pollution because until now very little was mentioned less hazardous to health in comparison with other conventional sources of pollution: waste, fog, dirty water ...
Light pollution means:
-Huge energy costs unnecessary
-Security issues Destruction of ecosystems based on night-day sequence
-Health problems in the population
-Reducing activity astronomical observatories, and amateur astronomers
-Since 1830, responsible for lighting Paris lit just one of two full moon nights to save energy.
Light pollution is several ways, namely:
-Over-illumination
-Night sky brightness
-Light blindness
-Excessive light clusters
-Light passing the limit property
Now I will say a few words about these types of pollution.
-OVERR-ILlUMINATION-
Over-illumination is the excessive use of light.
Over-illumination is produced by several factors:
-Model improper bulbs used for office buildings and lighting set standards too high for different types of work.
-Keeping bulbs lit in offices where the night is no longer working.
-Choosing the wrong types of lamps and their installation being incorrect that they do not direct the light directly onto the ground, but the sky.
-Lack of timers, the presence of sensors or other types of controlled switches to switch off the light when it is no longer necessary.
-Inadequate maintenance of electrical systems resulting in waste of energy and therefore additional cost.
-Insufficient information and training to people about using energy efficient systems.
-NIGHT SKY BRINGHTNESS-
This type of light pollution refers to the production of "domes of light" above the overcrowded areas. In these areas, because of public lighting based on mercury vapor lamps, the sky is lit in a color. The brilliance of the night sky above the city is caused by the fact that most lamps allow massive leakage of light to heaven.
This light is reflected in the city smog and the atmospheric layers and produces a true halo.
Urban halo is often brighter than the streets where it should be light. In this type of light pollution you can see very well the waste of energy. I can see going out of town where you live.
A private and public regulatory lighting, along with reducing air pollution would lead to a decrease in halo city.
-LIGHT BLINDNESS-
The lights are very bright and we enter directly into eyes not to see us do well the difference between light and dark.
This brightening may be of several types:
-Glare - with effects similar to those caused by sunlight. It produces temporary or permanent visual impairments.
-Glow producing temporary blindness - has an effect similar to that produced by the headlights of a car, the light that is transmitted through the fog. It produces significant temporary reduction and visual capacity.
-Glow disturbing - not in itself create a dangerous situation, being more irritating or annoying, but a long-term exposure can cause eye fatigue or mental.
-EXCESSIVE LIGHT CLUSTERS-
The lights of several types gathered at one place can cause confusion, can distract from obstacles (including those that seek to illuminate), can lead to accidents.
-LIGHT PASSING THE LIMIT PROPETY-
This type of light is passing from one property to another neighbor over the fence. A major problem occurs when light from a powerful bulb lighting used for input or garden into the room causing their neighbors insomnia or inability to look through their window in May.
The effects of light pollution
-Waste of energy
-Health effects
-Destruction of ecosystems
-Security issues
-Effects on astronomy
How to reduce light pollution?
Solution for reducing light pollution is very simple. It is reduced to ensure that the lamps light only where needed, not toward heaven, not into neighbors homes and in any case into the eyes of drivers. Use of green lamps (maximum efficiency) is the perfect solution. They should only be directed downward and not in other directions.
19.10.09
2.5 XL Wind turbines from GE Energy have the capacity for extremely low temperatures
The most advanced wind turbine from GE Energy 2.5-XL, is now available with a package for extremely low temperatures (CWE).
Adding package CWE guarantee operation of 2.5 xl wind turbines at low temperatures up to -30 ⁰ C, and in regime survival, without being put to work at temperatures up to -40 ⁰ C. CWE package is particularly important for wind turbines to work in Canada, where low temperatures are common.
Earlier this year GE announced that turbines of 2.5 xl, already enshrined in applications in Europe and Asia, will be released in North America in 2010. Initially, CWE package was developed for wind turbines of 1.5 megawatts (MW) and was adapted for turbines 2.5 XL, that the latest product of technology developed for wind turbine company.
"With over 4,400 wind turbines installed in locations characterized by low temperatures, GE has a long experience on the implementation of the turbines in adverse conditions," said Victor Abate, vice president of renewable resources, GE Energy. 2.5xl turbines are the most advanced technology of GE wind turbines in terms of efficiency, reliability and ability to connect to the network.
They are designed to ensure the highest annual energy production of their class and builds on the success of the 1.5 MW wind turbines from GE, that is most commonly used wind units in the world, currently being installed over 12,000 such turbines. The generator 2.5 MW turbines of 2.5 xl can provide a higher production projects on a smaller field and the High performance thanks to their sound over distances of kickback noise receptors can be minimized, allowing the installation of a number more units on a given area of land.
"Despite global economic challenges, we see further opportunities for sustainable growth in North American wind industry," said Abate. "Adding the package for extremely low temperatures in our model of 2.5 xl greatly expanded our ability to handle various needs of our customers.
According to the Canadian Wind Energy Association (CanWEA), Canada has surpassed last year's installed wind energy capacity of 2,000 megawatts and is expected to exceed 3,000 megawatts in 2009. Currently, wind power provide about 1% of Canada's electricity needs, wind turbines in this country representing a production capacity of over 2,800 megawatts, enough to meet the needs of over 860,000 homes. Province of Ontario is currently the leader in wind energy segment in Canada, with an installed capacity of 1162 megawatts, providing clean electricity for 300,000 homes.
Currently, GE has a strong presence in the wind industry in Canada, with an installed base of 938 MW (39%) nationwide and 780 MW in Ontario (62%). Also, GE is a major supporter of the initiative "WindVision 2025" the association CanWEA collaboration with federal and provincial partners in order to ensure the 20% of Canada's electricity on wind power by 2025, thereby reaching a total of approximately 52,000 new jobs "green" and new investments worth 79 billion nationwide.
About GE Energy
GE Energy (www.ge.com / energy) is one of the largest providers of technology for producing and delivering energy in the world, posting total revenues of 29.3 billion USD in 2008. Headquartered in Atlanta, Georgia, GE Energy operates in all areas of the energy industry including coal, oil, natural gas and nuclear energy, but renewable resources such as water, wind, sun and biogas, among other alternative fuels. Numerous GE Energy products are certified under "ecomagination" initiative GE corporate-wide to aggressively bring to market new technologies that will help customers align more demanding environmental requirements.
Green buildings, energy efficiency
How would you protect the environment to sit in the house? It sounds impossible, but it is not. It would be very easy if you live in a green building.
Such construction requires, in short, use of renewable energy sources and protecting the environment by using recyclable materials and adopting a system of heating water using solar energy.
What is a green building?
The term "green" defines any new or old construction that minimizes or eliminates the risk of harming the environment. Manufacturers can use modern technical solutions, such as specialized windows or traditional solutions, like natural ventilation.
The most important advantage is to reduce energy costs and the recycling Borncamp Steven explains, adding that studies show that natural light buildings improve employee productivity.
Another advantage is that, unlike traditional buildings where the costs increase as construction is gaining momentum, raising the green homes cost more to level design, but the amount decreases as the building is constructed.
How to have a house "green" :
* Use low energy bulbs
* Change your old windows that do not isolate well
* Insulates your home, especially the attic or bridge
* Buy appliances with low power
* Install your solar panels to produce energy
* Use natural ventilation solutions instead of air conditioning
* Natural stone paving garden
* Change sanitation old with some new, recyclable materials
* Triaza and recycling waste
* Ideal is to build the house of polystyrene insulation encasing the concrete is poured, allowing a double insulated.
Saved their newborn!Incredible.
The images are a dramatic.Look them!
Citarum river most polluted in the world
Citarum river waters, which is near Djakarta, capital of Indonesia, are the most polluted in the world.
Over 500 factories discharge their waste into the river, largely consist of chemicals used to treat textile materials they produce.
Not only do they waste the most polluted Citarum river in the world, but droppings, plastic bottles, rubber gloves, the remains of mobile or carcasses. Local residents have no sanitary facilities and drinking water.
Domestic waste is dumped directly into the river and the water is then used for cooking or washing. Locals do not fish, because this occupation is not profitable, however insignificant amounts recovered for all floating on the river waters.
Citarum is a real outbreak of infection, not infrequently its waters, where play or bathing, carrying with them viruses that can trigger epidemics ever. Ecological disaster of the childrenCitarum began in the '80s, with the rapid industrialization of the area, but none ever polluters not to protect or green waters of this river.
1 billion dollars in renewable energy
Billionaire George Soros said it would invest 1 billion U.S. dollars in renewable energy technologies and create an organization that would advise the authorities on environmental issues, reports Bloomberg.
Soros, founder of Soros Fund Management LLC Fund, was announced Saturday in Copenhagen, during a seminar on climate change.
"I want to apply clear criteria such investments will be profitable, but to and contribute to solving problems (climate change)," Soros said in an e-mail quoted by Bloomberg News Sunday.
Soros, aged 79 years, not given, but details about the type or purpose investments that could be done, but said that the organization will establish Climate Policy Initiative, which will donate 10 million U.S. dollars each year in next ten years.
The organization will provide "Partial advisory services, partly to develop environmental policies and partly to carry out surveillance", he said the initiative, Thomas Heller, who is a professor at Stanford University Law School and an expert in energy and environmental legislation applicable.
The organization will develop programs on climate change and will operate in the U.S., Europe, China, India and Brazil.
"Matter with global warming is primarily a political today," Soros said, adding that the organization will deal with issues such as trade and the carbon rights.
Soros said he prefers the taxes applied to emissions of greenhouse gas trading system for carbon emissions, which is practiced in Europe, because it can be manipulated by investors.
16.10.09
Passive House
Assembly required level attic and roof beams in the roof molding.
Passive House
Assembly ring beams and bricks.
Mounting ring bricks, the caissons and columns reinforcement.