October 12th

Leonardo Power Quality Initiative publications

Created in 2001, LPQI has grown into a partnership community of 100 authorities in the field of power quality. They range from academic and polytechnic institutions to engineering companies. LPQI aims to provide end-users and business decision makers with facts and best practices to improve power quality in the non-residential sector and to raise awareness among policy makers. LPQI European education programme reaches 100 000 professionals each year.

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October 10th

Electric/hybrid cars breaking efficiency records!

The Aptera is the newest two-seat car with high fuel efficiency entering the market – the company is accepting orders for delivery in about one year. The producers claim that it can achieve more than 300 miles to the gallon (or less than 0.78 l/100 km) and a top speed of 150 km/h.

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October 8th

Repenting recidivists

Old habits are hard to break. If you are sceptical about climate change, you may want to cling to that view, but if you prefer to deal with the matter, a habitual approach can be very useful. The repenting recidivist may have an advantage in his mindset! Let us, however, deal with the matters one by one.

The well-known sceptical environmentalist, (as he calls himself,) Bjørn Lomborg, is marketing his new book “Cool it”. He does so in an article with the witty title “Global Warning” in which he repeats his arguments that there are other issues more pressing and important to deal with than the global warming.

As in earlier articles, the stories told are anecdotal and fragmented, and often seem to be taken out of context. It is true that many of us have, in many respects, a better life today than decades ago, but that is certainly not evidence of a continuous development for the betterment of all, worldwide.

Polar bears, too close for comfort

He claims that the polar bear, an oft-used indicator of global warming hazards, is a growing population, and the hunting in Hudson Bay is more dangerous to these animals than global warming. The truth seems to be that the reason for the hunting in Hudson Bay is that polar bears have to retreat and find new habitats when the ice melts. They then come “too close for comfort” to humans in the villages who sometimes have to give an armed response.Read full article

October 5th

Distribution panel in a modern Italian hotel room

How much energy does it cost to save energy? In this 4-star hotel each room is equipped with a distribution panel including an RCD (very good for electrical and fire safety) and a transformer 2*12V, rated no less than 24VA. Obviously the transformer supplies the door chime, some electronic control gear e. g. for the air conditioner, the electro-magnetic lock and the auto-shut-off: When the key card is removed the room lighting is switched off automatically in 2 groups with different time lags.

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October 4th

The impact of GHG emission reduction projects connected to the grid

How much will GHG emissions of the complete system be reduced by implementing the project?

How do you calculate the final GHG emission reductions resulting from an energy efficiency or renewable energy project? One of the complexities of this task is that the applications are in most cases connected to the grid. As a result, not only the local effects need to be calculated, but also the effect on the entire grid including all of its power plants.

A joint project of the World Resources Institute (WRI) and the World Business Council for Sustainable Development (WBCSD) has drawn up some excellent guidelines for executing this challenging task. The Guidelines, while designed to be used by governments and business leaders, are also interesting reading for anyone eager to gain more insight into the electricity grid as a system with all its intricate interactions and decision factors.

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October 3rd

Lighting Design & Techniques - Completing the series

By Anne Rialhe, AERE & Pascal Lenormand, Incub

Part 1 - Lighting & Human Life

This is the first article in a series of three in which we will focus on the relationship between lighting and human life. This topic is much broader than merely ‘ensuring vision’. After defining some important terms and measurement units, we will discuss how the quality of lighting interacts with and effects human behaviour.

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October 2nd

10 quiz questions on energy

Take Leonardo's new energy quiz, contributed by Josep Joan Berenguer from Spain.

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October 1st

Is the Bush moving?

You may remember the play by Shakespeare and how the witches tell Macbeth that he will remain in power until the forest moves? He finds this prophecy very reassuring for his future, until he eventually discovers that it is true when Macduff's troops move, camouflaged with branches from cut the trees. Are we now witnessing the end of the climate sceptics when even "the Bush" seems to move?

A coalition of the un-willing?

Last week, George Bush called a climate summit in Washington composed of some of the countries that emit the most greenhouse gases in the world. Some of them have not signed the Kyoto-protocol - a sort of coalition for the unwilling, so to say.

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