Selected pulses

Compact fluorescent lamps and power quality

Peter Van den Bossche on February 27, 2008

One aspect that is rarely touched in the discussion about compact fluorescent lamps and the ban of incandescent lamps: power quality. Have you ever seen the shape of the current absorbed by a compact fluorescent lamp? It just looks horrendous, far away from  a nice sinus, thus loads of harmonics! If the use of such lamps is generalized, power quality may suffer, and addtional energy losses will occur. One should also take this aspect into account. Proposed ban of incandescent lamps never seem to mention it, and also neglect several ...

Does using standby make me a carbon criminal?

Mark Frary on May 7, 2008
In these times of increased concern about global warming , the average person is now being forced to question everything they do in their daily lives ...

Ingenius solar power lamps !

Jose Vaz Pinto on April 22, 2008
This is in fact quite simple, but extremely ingenius and effective - the automatic on / off interior solar lamp - invented in Brasil by Mr Alfredo Moser ...

Pulses

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The elusive negawatt

Bruno Giussani on May 12, 2008
The Economist has a good, long story trying to answer the question: if energy conservation both saves money and is good for the planet, why ...

Carbon Credits: Credit Where It's Not Due

Kristen Lee on May 9, 2008
Yesterday I submitted a blogpost to Matter Network (.com) based on my experience at a fundraiser luncheon for International Rivers. Several speakers presented on an ...

The 100 terawatt hour hotel electricity bill

Mark Frary on May 7, 2008
I get to stay in an awful lot of hotels in my job. I’m the ski correspondent for The Times newspaper in the UK ...

The Game Plan - a solution framework for the climate challenge.

Jose Vaz Pinto on May 7, 2008
It worths reading and reacting upon it ! Saul Griffith, Jim McBride et all, give us at Wattzon.org a framework that enables us to think ...

ECO-ICONIC products coming our way

Laurent Haug on May 6, 2008
TrendWatching thinks that we're entering the eco-iconic era, where people buy green products because it brings them more points on the social ladder. That ...

Sustainable energy - the biggest and best projects around the world

Philippa Martin-King on May 5, 2008
Rarely do we get to see a review of some of the world's most impressive sustainable energy projects . From Geothermal to photovoltaic, solar, wind ...

Beyond Green Computing

Bill Thompson on May 3, 2008
Like every other product of the advanced manufacturing capabilities of a long-industrialised society the computers that surround us – and, for the pacemaker wearers among us ...

Maintenance

Guido Walt on May 2, 2008
All industrial activities have considerable impact on the environment. Emision, wastes and use of energy result in pollution and depletion of natural resources. Thus, sustainable ...

Global warming = you're on a diet, but have had a salad so it's ok to eat a cream bun!

Pippa Rojo on April 23, 2008
Governments ‘must act now’ to combat climate change Apr 22 2008 by Steve Dube, Western Mail The current approach to global warming was compared last ...

Human power generation - or how to turn the world greener !

Jose Vaz Pinto on April 21, 2008
Innovators company Potenco , developed the Pull-Cord Generator (PCG), used as the power supply by "the one-laptop-per-child project". It's a new approach to human power ...

Commercial Production of Fuel Cell

Shinichi Nishidate on April 16, 2008
Matsushita Panasonic introduced new PEFC which has power generation efficiency 39% (this is the world best record for residential PEFC) and energy efficiency 93% on ...

A nation breathing: How the US CO2 emmissions "look"

Jonathan Buck on April 9, 2008
Just read this on wired . Scientists from NASA and the US Department of Energy have put together a video depicting the US CO2 emissions. Check ...

If you read one book this year, read "The Hot Topic"

Jonathan Buck on April 8, 2008
I have been meaning to write a pulse on this for some days now!  Having finished the excellent book, " The Hot Topic " by Gabrielle Walker ...

Heat from data centre used to heat local pool

Toby Johnson on April 4, 2008
I admit I had to check the date on this one... but it makes sense. I wonder what percentage of data centre heat is used ...

Saving money with high efficiency motors

Hans De Keulenaer on March 31, 2008
After only three to six weeks of continuous operation, the power costs associated with low-rated electric motors and drives can already have equalled their purchase ...

CLF eficientes

Angel Cirocco on March 27, 2008
Los invito a que conozcan el sistema de certificación de etiquetado IRAM-SHITSUKE, sobre lamparas de uso domestico implementado en Argentina.  I invite them to ...

Earth Hour approaches on Saturday...24 cities, 240 000+ people, 18 000 businesses

Jonathan Buck on March 27, 2008
Thanks to Vered in Israel for highlighting one major global event this week. Please do take a moment to check this out. Earth Hour , an ...

New energy source discovered….

Mat Feakins on March 27, 2008
As our petro-economies lights go out we are forced to look at as many of the different options of renewable energy that are available. This ...

F1 Singapour, a nightmare of watts

Raphael Briner on March 25, 2008
Gosh, is there someone to turn off that bad idea ? Having F1 races during the night for one single reason: to give better hours of ...

The Offline Cost of our Online Lives

Bill Thompson on March 23, 2008
This is my latest column for the BBC News website, where I write about technology issues each week.  I thought it might be of interest ...

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Europe Sustainable development on a European level | by Pippa Rojo

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